Friday, November 16, 2012

Emerald Cities


Joan Fitzgerald’s Emerald Cities takes a look at how cities are leading the way toward more sustainable economic development. As the book was published at the start of the recession, many of the optimistic programs described have surely not fulfilled their goals. But the plans, policies, and organizations illustrated throughout Fitzgerald’s book are a good road map for urban planners, policy makers, and entrepreneurs alike.

America seems to have dropped the proverbial ball when it comes to global environmental leadership, action, and production. While our most progressive state (environmentally, anyway), California, has a 2020 goal of reducing greenhouse gases by 25%, Sweden will be oil-independent by then. Additionally, manufacturing of solar panel and wind turbine components has been spearheaded largely by European countries, and now China; so much for our own rust-belt revitalization.

Even still, many of the international examples of appropriate environmental policy are achieving mixed results. For instance, Germany produces 14% of its energy from renewables; however, Germany’s energy import dependence is at 62% and growing. As of 2010, 26 new coal-fired plants were being built in Germany, which would offset any carbon dioxide savings from solar and wind expansion.

Public policy has enormous potential to impact our environment and our economy. Adopting a Renewable Portfolio Standard (RPS), or a Renewable Electricity Standard (RES) will require increased production of energy from renewable sources. As of 2012, 30 U.S. States have implementedthese types of mechanisms and 7 more have voluntary goals. Tennessee and most of the southeast are not among those forward thinking states.

Currently, it is illegal for utility companies to buy back power from customers in most municipalities. By changing these laws, homeowners are incentivized to make “green” upgrades, and RPS’s become easier to attain. Presently, “green” upgrades are not given credit through traditional appraisals. California has passed a law that forces sellers to disclose energy efficiency, providing a means to compare and reward efficiency.

Nearly 40% of greenhouse gas emissions come from buildings (twice the amount from the transportation sector) and 50% of building energy comes from coal, the dirtiest of fossil fuels. The Cambridge Energy Alliance, a non-profit organization, and Berkley FIRST, a local government initiative, are two possible means to the same end: energy efficient buildings.

The Cambridge Energy Alliance is a non-profit created to implement an initiative seeking to retrofit half of all existing buildings in 5-7 years. (This would only reduce greenhouse gas emissions by 10%, according to 2010 statistics.) With $500k in seed money, from local foundations and institutional investors, Cambridge Energy Alliance works through local utilities to hire auditors that make recommendations and complete the work.

The audits are “free” to customers, through a system-wide charge to all consumers. The revolving fund would offer low interest loans for retrofits, to be paid back through lower utility bills. Unfortunately, the Cambridge Alliance had much difficulty maintaining the revolving fund through the recent economic downturn.

Berkley FIRST is a program designed to encourage the use of solar with a self-financing system. The city sends an approved solar installer to evaluate and install the appropriate solar system, for which homeowner pays no money up-front. When the owner signs the contract, the city pays for the system and adds the cost to the property tax bill, which is repaid over time. The Berkley FIRST special tax is a lien on the property that ranks above the first mortgage.

The increase in property tax is roughly netted out by energy bill savings. In addition, there are rebates and federal tax credits available. The homeowner will break even until the cost of installation is amortized over 20 years, at which point the homeowner will reap permanent savings on their energy bill. This approach does not require tapping into home equity for credit, and the city’s initial costs were financed by the sale of bonds.

Job growth potential is great in renewable energy component manufacturing and in the skilled labor required to install “green” retrofits. The mutually dependent relationship between sustainability and the business community cannot be ignored; also important are government policies to encourage “green” action. According to Fitzgerald, the three E’s (Economy, Ecology, and Equity) are essential to societal sustainability:

This book is rich with examples of how cities and organizations are tackling a multitude of environmental issues (too many to discuss in this blog) such as transportation, recycling, waste disposal, and social justice (as related to the environment.) Emerald Cities connects the dots between environment, industry, policy, and business in a way that is personally inspiring. Environmental solutions that are based in business-growth policies will be more appealing to all involved.

In conclusion, two quotes from the text: “Renewable energy, energy efficiency, green building, recycling, waste reduction, fewer cars, more trains, walking, biking are not individual policies but parts of the whole of how cities must be transformed.” And, “A considerable amount of policy, investment, and planning will have to take place to realize a vision that links transportation, sustainability, economic development, and social justice.” Amen.

Thursday, November 15, 2012

Green Goddess Smoothie


I drink this everyday, it's a great way to get some greens in before my morning run and breakfast.

Green Goddess Smoothie
(adapted from Kris Carr)

makes 2 servings:
1 avocado
1 cored and chopped granny smith apple
1 chopped organic cucumber
A fistful of organic kale
filtered water

*leftovers keep for a day in the fridge

Sunday, November 11, 2012

Hot, Flat, and Crowded


Thomas Friedman provides a comprehensive look at how to solve the world’s environmental crisis while revitalizing America in his 2008 book, Hot, Flat, and Crowded. Friedman presents these challenges as opportunities, and offers direction on how to navigate in the new ‘Energy Climate Era.”

Friedman explains the earth is becoming hot, flat, and crowded through global warming, technological innovation, and population explosion, respectively. Furthermore, Friedman goes on to describe how those changes are impacting five major problems: energy supply and demand, petro-dictatorship, climate change, energy poverty, and biodiversity loss.

A strikingly simple way of illustrating the disparity between our energy sources is the discussion of “fuels from hell” vs. “fuels from heaven,” as explained by Rochelle Lefkowitz. Fuels from hell, e.g., coal, oil, and natural gas, come from underground, are exhaustible, and emit carbon dioxide. In contrast, fuels from heaven, e.g., wind, hydroelectric, and solar power come from above ground, are renewable, and produce no harmful emissions.

Another factor to consider is how our fuel choices impact the autonomy of people across the globe. An inverse relationship between freedom and oil prices is demonstrated for populations living in Iran, Russia, Venezuela, and Nigeria. Through our dependence on foreign oil, vast amounts of wealth are being transferred from the west to energy producing countries, and in turn, directly to “petro-dictators.”

The chapters covering climate change and bio-diversity loss are as scary as a horror film. Unfortunately, certain groups of industrial and political factions have worked to “muddy” the issue and delay action. The effect of this non-action will be catastrophic. Friedman notes that “We are the only species in the vast web of life that no animal or plant depends on for its survival - yet we depend on the whole web of life for our survival.”

We have energy politics in the US, not a cohesive energy policy. Frustratingly, ‘liberal environmentalists’ are not effective agents of change; additionally, conservatives have forgotten what that word even means. Our government is lacking leadership and the ability to formulate a national energy strategy that conserves resources and fosters renewable energy. A favorite discussion in the book imagines the US being China for a day. Alas, extreme government efficiency is but a dream.

A Chinese Proverb states, “When the wind changes direction, there are those who build walls, and those who build windmills.” In Hot, Flat, and Crowded, Thomas Friedman makes a compelling case for American ingenuity leading the global charge to harness renewable energy resources in order to provide for and protect our way of life. Everyone, please read this book.

Thursday, November 8, 2012

{carbon nation}


In the process of surveying future career shifts and educational goals, I've spent the last several months searching out books and films about environmental issues and their solutions. Carbon Nation is a documentary film by Peter Byck about the growing worldwide carbon footprint. Instead of getting bogged down in the discussion about what is causing the problem, this film discusses solutions to meet our worldwide energy needs through lower carbon, carbon neutral, and renewable means.

Carbon Nation feels like an unbiased, all-encompassing look at sustainable energy practices. For instance, included in the discussion is the Evangelical Climate Initiative as well as interviews with renewable energy advocates who do not believe in climate change. The point the movie makes is that in the end, how we got here does not matter. We all need to work together to protect our environment and way of life.

One thing about wind power I didn’t realize before watching the film is that the land used for wind turbines can still be utilized for farming and ranching, which seems like a good business strategy for struggling farmers in the nation’s bread basket. Also, the Department of Energy has estimated that the wind potential in Texas, the Dakotas, Montana, and Kansas exceeds current energy needs in the US.

Another surprise for me was that deforestation accounts for 20% of the world’s carbon emissions, which is larger than the portion attributed to all transportation sectors. In addition to loss of biomass, soil erosion leads to other environmental impacts. If farmers and landowners of developing countries could be persuaded to harvest their forests in a sustainable way, and set aside land for grazing and Eco tourism, new sources of income could be tapped while protecting the environment.

Carbon Nation is full of ideas to meet the world’s energy needs in a renewable and environmentally friendly way. The film is upbeat and approachable, no matter your political or ideological views, which serves as a stark contrast to other environmental films such as An Inconvenient Truth. I highly recommend Carbon Nation if you have an interest in the environment, energy, or if you like Bill Kurtis’ voice (he’s the narrator).

Wednesday, October 3, 2012

Boxelder Bug


The Boxelder bug, Zug, or Maple Bug (Boisea trivittat) is a supremely annoying insect which can be found on or near  Box Elder (Acer negundo), other Maples, Ash, and Goldenrain Tree (Koelreuteria paniculata). Adults about a half inch long and mostly dark brown or black, with red veins or markings. Nymphs are mostly red.These bugs are similar in appearance to stink bugs and can put off an order if they feel threatened.

They are not known to be particular distructive and are not considered an agricultural threat. But let me tell you from personal experience that these bugs congregate in the hundreds on hardscape, door frames, etc. near their host trees and can be quite a nuisance. I have only just noticed these pests in large number recently, but they can be active outdoors from spring through fall. They also hibernate in walls and behind siding through the winter.

*Update: 30 minutes after I posted, I noticed a Zug walking across my desk! My office walls have been breached.

Thursday, September 20, 2012

end of summer



It's the end of summer and I'm taking stock of the garden and planning fall projects. This year I have really enjoyed growing new things, like banana peppers, and trying new things, like making pickles. Between what I've grown, generous friends, and my CSA, I know I'm eating healthier and more sustainably than ever before.

I'm about to throw the towel in on my tomatoes and get that space ready for a winter veggie garden. My peppers, especially the jalapenos are still producing, which will make a nice addition to this weekend's chili. In the upper south, right now is a great time to aerate and over-seed your lawn too. And while most irrigating can be cut back this time of year, newly-seeded lawns should be sprinkled twice daily (e.g., 4am and 4pm).

Today I collected almost 50 Chinkapin Oak acorns in a matter of minutes. Potential fall projects I have in mind are: germinate the acorns and make baby oak trees, become an urban forager and prepare them for consumption, or most likely some combination of the two. I will undoubtedly report successes/ failures here.

Until then, happy foraging/gardening!

Wednesday, September 5, 2012

Beautyberry



American Beautyberry
Recently I confirmed a suspicion of mine, Japanese Beautyberry (Callicarpa japonica) is an invasive exotic. A landscaper had mistakenly installed a few of these shrubs for a client one winter, to replace some dead shrubs in a grouping of American Beautyberry (Callicarpa americana); now there are seedlings of Japanese Beautyberry growing in nearby planting beds.

Observing these two species side by side it is easy for me to choose a favorite. The American Beautyberry has medium-green, medium-textured foliage with rich-colored violet-magenta fruit clusters that surround stem nodes of gracefully arching branches. This shrub is perfect for massing between turf and wooded areas and in the naturalized border. The fruit is not a favorite among wildlife, but will be gobbled up before winter. I have never seen this species re-seed itself.

Japanese Beautyberry
The Japanese Beautyberry by contrast has yellowish-green foliage of a slightly finer texture and more coolly-colored purple fruit on arched branches that have a more erratic structure. The flowering and fruiting cycle of the two species is similar, and I would imagine the flowers and fruit are similarly attractive to pollinators and wildlife alike. Japanese Beautyberry grows faster, but both species can benefit from pruning to within 6”of the ground each spring as they bloom on new growth.

There is an abundance of information (and misinformation) on-line about the many Beautyberry species, some of which have been classified as invasive (Callicarpa dichotoma). Jam recipes were surprisingly popular, which proves the point that when you add enough sugar to anything, it will be edible! Fall is the time to enjoy this shrub. And this fall, I will appreciate the native species even more.

Monday, August 13, 2012

American Grown


Today I read Michelle Obama’s book American Grown; The Storyof the White House Kitchen Garden and Gardens Across America. It is a good American garden history and service garden philosophy primer. Michelle Obama has made healthy eating and healthy lifestyles the center-piece of her public policy efforts and this book showcases both.

It was interesting to hear how former Presidents and first ladies made their mark on the White House grounds. In addition, the discussion about where to site the new kitchen garden and what to plant is appreciated by this gardener (and designer); as these considerations are oft-overlooked.

The subjects and their presentation are worthwhile to novice and master gardener alike. My favorite portion of the book introduced the White House’s first beehive and beekeeper. The honey is also part of gift baskets that contain pickled vegetables, loose tea, and seedlings from the garden given to foreign dignitaries such as Prince Charles.

Aside from White House history and bees, American Grown also shares gardens plans, tons of images, personal stories, and recipes inspired by the garden and White House chefs. Other areas of focus include community gardens, service gardens, farmer’s markets, school gardens, and the ‘Let’sMove!’ program.

I would recommend this book for anyone interested in gardening, history, or Michelle Obama; never have I seen a more stylishly-dressed gardener getting their hands dirty. Two other reasons to read this book:  Michelle Obama’s initiatives are ones we should all support for our country’s health, and author proceeds from this book will support the National Park Foundation

Monday, July 9, 2012

hot as hell with a side of drought


Black-Eyed Susan

Nashville saw its hottest day ever June 29, at 109 degrees. Throughout this summer we have shattered existing high temperature records and last week we had multiple 104-degree days. Not only was June one of the hottest months on record, it was also one of the driest and we are in the midst of a full-on drought.

Pretty much any plant not being watered regularly is a plant that is struggling. We will lose many trees this summer due to the high heat and drought conditions. Species that appear to be struggling the most include Sycamore (Platanus), Tulip Poplar (Liriodenron), and Redbud (Cercis).

These ArborRain watering bags will help newly planted trees and shrubs. The peppers and herbs are doing great. Of my tomatoes, only the Super Sweet 100, Yellow Pear, and Romas are performing well. A native Black Eyed Susan (Rudbeckia) is pictured above, and is the only thing alive in that scorched field.
green peppers
tomatoes

With all of the blackberries I harvested from the backyard, I made a blackberry-peach cobbler that wasn't too shabby. This is the tried and true easy-peasy fruit cobbler recipe I used; simply switch out the fruit for whatever is in season or (in the freezer) at the time.

Tuesday, June 19, 2012

and it's summer...


Japanese beetles

The garden has been busy, despite my lack of time to tend the garden or blog about it. I’ve been enjoying the veggies and herbs that I planted, as well as fruit that I did not plant; volunteer blackberries are so fun! Japanese beetles are wreaking havoc on my knockout roses and other ornamentals. Also, I’m struggling to keep up with the watering, especially now that it’s practically summer and we are in a precipitation deficit.

Part of my garden inattentiveness here of late can be blamed on my trip to Italy last month. And what a fabulous diversion through ancient ruins, art, architecture, and culture it was! While we didn’t have time to tour all of the gardens I wished, I was surprised to see Acanthus and poppies growing as weeds all over Rome; if only our weeds could be so striking. Acanthus was also immortalized in ancient sculpture and architectural decoration throughout Italy.

Acanthus popping up in the ancient Roman Forum

Monday, April 9, 2012

Easter Blooms


Mom's blooming azaleas, with viburnum in the background

Spring is in full swing as evidenced by a profusion of blooms, buds, and pollen. But we’re not quite done with cold weather; the forecast for this week shows two nights with lows in the mid-thirties. So I’ve set my sights on this weekend for planting veggie starts.

Among the available pink blueberries, purple potatoes, and apple mint, I have whittled my wish list down to a few veggies and herbs including some varieties new to my garden such as ‘Salad Bush’ cucumber, ‘Golden midget’ corn, ‘Sweet Banana’ peppers, and ‘Taxi’ tomatoes.

Over Easter weekend I had the delight of taking in all of the striking azaleas that flourish throughout my mom’s established neighborhood. Also flowering now are Spirea, Iris, Peonies, and Ajuga. The strawberries have tiny green fruit now and I can’t wait till they ripen; which is usually in May, but this year will probably be sometime in April. 

ajuga lawn
strawberries
If I had unlimited space at the perfect exposure, I’d like to plant all of these:
Cucumbers:
§      Salad Bush
§      Sweet Success
§      Green fingers
§      Bush pickle
Green Onions:
§      Evergreen hardy white
§      Parade
Sweet peppers:
§      ‘California Wonder’ (for stuffing)
§      ‘Sweet Banana’
Hot peppers:
§      ‘Pretty in Purple’
§      ‘Tabasco’
§      ‘Jalapeno’
Corn:
§      ‘Golden Midget’
Red Heirloom Tomatoes:
§      Brandywine
§      Soldacki
§      Italian Heirloom
§      Juane Flammee
Purple HeirloomTomatoes:
§      Cherokee Purple
§      Nyagous
Green Heirloom Tomatoes:
§      Aunt Ruby’s German Green
§      Green Zebra
Yellow Heirloom Tomatoes:
§      Dr. Wyche’s Yellow
§      Beam’s Yellow Pear
§      Taxi (early)
§      Sungold (cherry)
Cherry Tomatoes:
§      Mexico midget
§      Black Cherry (early)
§      Sweet 100
§      Red currant
Other Tomatoes:
§      Carmello
§      Roma
Herbs:
§      Basil
§      Chives
§      Cilantro
§      Parsley
§      Sage
§      Thyme

Friday, March 23, 2012

Silverbells




Two-winged silverbell (Halesia diptera magniflora) is a beautiful small tree that has a rounded form and is usually multi-trunked. This native tree prefers moist, acidic sites and is well-suited for the shrub border or woodland edge as it will do well in the sun or partial shade. The flowers look like little bells! 



Monday, March 19, 2012

last day of...winter?

Today, the last day of winter, temperatures will reach the mid-eighties in middle Tennessee. Forecasts for the first day of spring are 85 degrees. It would seem we have moved from a mild winter directly into summer. Except that my allergies are feeling every bit a Tennessee spring, the pollen count is 333.

Over the weekend I planted a second blueberry, Jersey. And weeded for an hour, mulched, and watered. I also discovered in my evidently too 'secret' garden that the Epimediums are in full bloom! The packed garden center was a welcome site indeed. By all accounts, spring has sprung!

Friday, March 16, 2012

knotty pine planks do not a garden make





“Two old planks of knotty pine
And a couple of nails poke right on through”

After assembling the framework for a new raised bed this week, I could not get that David Byrne and Dirty Projectors song out of my head. Not an altogether bad thing. I nailed together four discarded 2x6’s, which were of three different lengths. It won’t be the prettiest garden bed, but should be just fine for growing veggies (once I get it filled with dirt). 

It’s been unseasonably warm (eighty-degree days) and continues to storm several times a week here. The Cherry trees, Redbud, Carolina Jessamine, Hyacinths, and Phlox have added their blooms to the chorus of spring flowers. And my allergies are going nuts. Because the pollen count is usually highest in the morning, I try to work outside in the afternoons.

Ginger, Peony, and Baptisia are all bursting out of the ground, with quite unusual looking foliage. Now is a good time to place some sort of support on top of your peonies in anticipation of large, heavy blooms in the future. Sow seeds of cool-season veggies like lettuce, snap peas, carrots, beets, and spinach.

Evergreens such as yews and boxwoods can be pruned now. But please do not use an electric hedge trimmer on your boxwoods; that landscape sin is akin to Crape murder in my book. Best results (aesthetic and horticultural) are achieved by selective pruning instead of shearing. Select the longest branches and trim them out with pruners, opening up small holes on the periphery of the foliage to let in light and air.

Saunders Brothers is a fantastic source of information about all things boxwood.

             


Tuesday, March 6, 2012

plum crazy


Plums are a great addition to the edible landscape, and help to promote wildlife. (The bees were going crazy over this Chickasaw plum's blooms.) Three species that do well in our area with little input are American plum (Prunus americana), Wild Goose Plum (Prunus munsoniana), and Chickasaw Plum (Prunus angustifloia).

These native fruit trees can be large shrubs or small trees, hybridize amongst themselves, and tend to form colonies when left to their own devices. White spring blooms give way to red, orange, and yellow fruit in late summer. Plant a few plums for optimal pollination.

Eaten fresh, baked, or processed into jams or wine, the possibilities are mouth-watering and easy to attain. These plums will do well in partial shade to full sun, bearing fruit in just a few years. Keep in mind, native plums are smaller than the European varieties you may be used to at the grocery store.

Tuesday, February 28, 2012

tree tags


Now through the middle of March is a great time to plant trees and shrubs! We’ve been planting lots of trees at work and I recently ordered these aluminum tree tags for long-term, no-fuss labeling. From A.M.Leonard, these heavy aluminum labels are wrapped around stiff cardboard backing for easy pencil marking. They arrive pre-wired for simple branch hanging.


Labeling these tags is a great activity for a rainy day. We’ve had such a mild and wet late winter that it’s feeling more and more like spring. Today it is 70 degrees and rainy; there are Daffodils blooming everywhere along with deciduous Magnolias, Cherry trees, and Bradford Pear trees.


Friday, February 17, 2012

God is in the details: a Pine matrix




According to Wikipedia, the idiom "God is in the details" expresses the idea that whatever one does should be done thoroughly; i.e. details are important. And with this phrase, I couldn't agree more.

Patterns fascinate me; whether naturally occurring, mathematically based, or both. In professional practice I’ve had to come up with patterns to show the relationship between different landscape elements such as different varieties in a rose garden planting, or different sizes of stone in a hardscape design. A successful pattern creates beauty and balance, with a degree of randomness.

Recently, I worked on a large-scale screen planting, made up of three different varieties of Pine trees; Loblolly (Pinus taeda), Virginia (Pinus virginiana), and Shortleaf Pines (Pinus echinata). The three varieties were chosen for visual interest as well as insurance against environmental problems (e.g. a pine beetle that prefers Pinus x).

The nearly thousand pine tree saplings were obtained from the Tennessee Department of Agriculture, Division of Forestry. With a 30% expected mortality rate, the area forester recommended a plant spacing of no less than 6’ on center and a planting ratio of 2:1:1 Loblolly, Virginia, and Shortleaf, respectively.

This adds up to a lovely grid of trees reminiscent of a Christmas tree farm. However, the client wanted a more natural and less industrial-looking screen planting. The solution: a pattern that could be replicated throughout the specified area to create variable spacing and arrangement of the three species.

The design began with 6’, 7’, and 8’ diameter circles drawn randomly, overlapping ever-so slightly. Then 7’ circles were drawn over each center point creating an arbitrary plan of overlapping circles and voids. A 30’x30’ section was extracted and developed into a color-coded plan that would be easy to flag, rotate, and replicate in the field.

As with a lot of planting plans, some adjustments had to be made on site due to topography, existing trees, and with care to avoid any spacing closer than the 6’ minimum. Thus exemplifies either how complicated a simple tree planting can be made by a Landscape Architect or as I believe the true importance of detail.

Wednesday, February 15, 2012

february blooms


Looking back at my garden notes from Februaries past, one thing’s for sure, plants are blooming earlier. This has been a whacky winter; and by whacky I mean mild and wonderful. I’ve actually enjoyed spending time outdoors throughout most of this winter, which is in stark contrast to the incredibly snowy winter Nashville saw last year.

Flowering Quince (Chaenomeles), Daffodils (Narcissus), Lenten Rose (Helleborus), and Witchhazel (Hamamelis) lead the charge (and the Camellias are still blooming!). The thought of grouping all late-winter blooming plants together in one composition seems a perfect way to combat winter blues. And while ordinarily opposed to such theme gardens, this is one I’d like to try.


Monday, February 6, 2012

greenhouse adventures


The greenhouse is usually a welcome respite in the gardening adventures of winter. But this mild winter it hasn't been nearly as necessary. Regardless, I'm trying my hand at growing indoor plants and rooting shrubs. The top image is of an asparagus fern (Asparagus densiflorus) flowering! The images below are of my dogwood rooting project.

Asparagus fern is a fantastic warm season container plant which will do well in partial shade to full sun situations. It is related to the favorite spring time vegetable and prefers moist, well-drained, fertile soil. This is a great plant for indoor and outdoor applications, serving as a wonderful foil to a variety of summer annuals, or stealing the show in a pot by itself.

During the holidays, part of an indoor flower arrangement placed near a window began to sprout. I removed the sprouting twigs from the floral foam, removed any flowers and reduced them to 5” cuttings, dipped them in rooting powder, and placed them in potting soil in the greenhouse. After a few weeks, two of the cuttings are not only alive, but pushing new growth!

I’m fairly certain this is Redosier Dogwood (Cornus sericea). Which is a native large shrub/small tree whose red stems are used in the floral industry. Cuttings of this plant will flower in water and root well with a hormone treatment, though best success is generally achieved in warmer months. 

Thursday, February 2, 2012

Blue Suede Blueberry


At a continuing education conference this week at the University of Georgia, I obtained lots of good stuff: new landscape design knowledge, signed copies of Vince Dooley’s books, and a new blueberry bush! Vaccinium x Blue Suede’ is a new highbush variety introduced by UGA which boasts large, early ripening fruit and the ability to self-pollinate.

While ideal for edible gardens, blueberries also do well among other acid loving plants such as Rhododendrons, Camellias, and Hollies. Other native highbush blueberries that do well in our area include: Blue Jay, Jersey, Legacy, Patriot, and Sunshine. A few of these varieties are currently available at local garden centers.

Between the spring flowers, summer fruit, and outstanding red fall color, Blue Suede will provide three seasons of interest in the garden. Researchers anticipate it will perform well in zones 6a-9a. (Most of Tennessee is now squarely in zone 7a, according to the new USDA Hardiness map). Now I just have to find a sunny spot to place the new addition!

Image is from the American Society of HorticulturalScience

Monday, January 16, 2012

frost can be hell


“How can it be that after a frost the entire garden looks as if it had been to a party in hell?” asks garden writer Jamaica Kincaid in the piece “A Fire by Ice." This paradox is present throughout the winter experience, not just in the garden. Alluding to symptoms of frostbite, have you ever heard the expression, ‘cold enough to make your skin burn?’ Tissue damage from cold weather is destructive to plant and skin cells alike.

Every fall and spring, many tender and deciduous plants experience this damage. But even winter annuals can show signs of frost damage throughout the season. Pansies are notorious for this. As the internal temperature in various tissues of the plant become cold enough to break cell walls or spoil cell components, damage, wilting, and death may occur.

Healthy plants will usually survive short periods of extreme low temperatures. The best way to prevent and treat frost-damaged winter annuals is to mulch sufficiently and water regularly. It’s easy to forget to water winter annuals; but for most of the country winter months are the driest.  Remember that even when the plant isn’t actively growing, the roots are still developing.