Tuesday, April 7, 2009

Here We Go Round the Mulberry Bush

Continuing our exploration of the difficulty of implementing NWF's six tips for a green garden...

Tip #4: Emphasize woody plants that capture more carbon than fleshy herbaceous species.
Tip #5:
Plant trees and shrubs where they will block winter winds and provide shade in summer.

I'm going to combine these two tips and explore them together, as they seem to go hand in hand. What this comes down to is choosing "woody plants" and planting them in the right places.

An important takeaway here is that "woody plants" doesn't have to mean trees. Much of what we've planted in My Florida Backyard falls into the category of bushes and perennial plants that develop those "woody" characteristics. Here are some examples that have worked well for us (all are native Florida plants):
Wait - lantana? That's a flower, right? Well, when you buy the nice small plants at the nursery, they are indeed tender and green. However, as they grow, they develop woody stems and become more like small shrubs, while continuing to put out flowers that attract butterflies in droves. After a growing season, you can cut these all the way back to the ground, and they will put out new tender green shoots that will eventually grow into woody shrubs again.

As for planting things in smart locations - we've planted Silver Buttonwood shrubs to help block the strong sun in a west-facing window, and a Firebush where it will grow and shelter the AC unit from southern exposure. We have several full-grown trees already, one of which provides some decent shade for the west side of the house. We've hestitated to plant any more trees, because we don't want to block our view of the lake.

Level of Difficulty: On the scale of 1 - 5 (5 being most difficult), I have to rate this as a 1. Choosing woody shrubs or trees and planting them appropriately is not that difficult.

Tip:
To make things even easier, consider joining the Arbor Day Foundation. $10 gets you a 6-month membership and up to 10 free trees!

Monday, April 6, 2009

Walk This Way

NOTE: I'm continuing to explore the difficulty of implementing NWF's six tips for a green garden.

Tip #3: Choose materials with low-embodied energy.

Well, I have to admit that before I could evaluate the difficulty involved in this tip, I had to do a little research to learn what the heck they meant by "low-embodied energy". After a lot of wandering around on the web, I learned that what it means, basically, is this:
  • When you're choosing building materials, you need to consider the total amount of energy required to manufacture a product. This could include the gathering of the materials (i.e. mining), the work needed to compile the product (i.e. firing bricks), and the energy costs of transporting the building materials from the place of manufacture to the building site.
After learning this, I realized that there's a good chance that some of the building materials I've used in My Florida Backyard actually might not fit this criteria very well. For instance, we built a concrete paver walkway around the house from front to back, as shown in this picture from last July:

We chose our building materials with several criteria in mind, but low-embodied energy wasn't one of them, I have to admit, simply because I wasn't aware that it should be.

There are many ways in which our pathway is still a good choice for a green garden. It is set in sand with gaps between the pavers, allowing rain water to filter through instead of running off. It's light-colored and reflects heat and sunshine rather than absorbing it. The concrete pavers are simple and unglazed, reducing some of the chemicals that might have been used to make them.

However, you just can't define concrete pavers as using "low-embodied energy" to manufacture. Concrete ranks high on the scale, as the cement and stone must be mined, then manufactured into bricks, and then shipped - and these pavers are certainly not lightweight.

So now I know, and that's half the battle. Going forward, I can choose materials that do use low-embodied energy, especially those made from sustainably-harvested wood materials. Here's what I could have done differently:
  • Chosen different materials for the path, such as locally-collected gravel, sustainably-harvested woodchips, or crushed shells (certainly easy to come by locally!).
  • Looked for a different source for the pavers, rather than buying them new. If someone else had pavers they wanted to get rid of, I could have purchased them used rather than buying new pavers that needed to be manufactured and shipped.
  • Created a different type of path, perhaps one using flagstone stepping stones, so fewer materials would be needed.
Level of Difficulty: I know I'll have to make smarter choices about building materials going forward. This might mean going a few steps further than just investigating the options at my local DIY big box store, so I can see that it's possible more effort might be involved, but really it's just a matter of asking questions and knowing more about your materials. On the scale of 1 - 5 (5 being the most difficult), I'm going to rank this one a 2. Do your research, and buy materials appropriately. That's all there is to it.

Thursday, April 2, 2009

Power to the People

NOTE: I'm continuing to explore the difficulty of implementing NWF's six tips for a green garden.

Tip #2: Use hand tools instead of power equipment.

Why?
  • As I mentioned in yesterday's post, the carbon footprint of gas-powered lawn mowers is surprisingly large. In fact, according to an article in the March 2009 National Geographic magazine, "The average gasoline-powered push mower ... puts out as much pollution per hour as eleven cars—a riding mower as much as 34 cars."
  • Using electric tools instead? Well, don't forget that the electricity still has to come from somewhere, and that "somewhere" is often dirty coal power plants. Those electric tools aren't always all that convenient either - last week, I watched the guy across the lake mowing his lawn with an electric push mower attached to a lo-o-o-ng extension cord. I can just imagine the conversation with his wife that led to that moment. "I don't care if the lawn mower isn't charged up, Bob. You said you'd mow the lawn this afternoon, and I want it mowed!"
How? Well, with the Leave it to Beaver theme song running through our heads, we here in My Florida Backyard turned to the old-fashioned Classic Push Reel Lawn Mower, made by Scotts.
The mower itself is really pretty easy to push. As easy as a self-propelled gas or electric mower? Well, of course not. But it rolls along pretty smoothly. After a few test runs, we determined that the mower does a great job cutting regular old grass. It does not do so well with the tougher weeds that seem to spring up to six inches tall overnight.

In the end, after doing some research, we also decided to invest in the Black & Decker Automatic Feed String Trimmer and Edger, even though it required electricity. If you have to choose power tools, electric tools in general will provide a lower carbon footprint (although I can never really get those dirty coal plants out of my mind...). Still, in fairness, we did try a hand-edger tool first, and it just didn't seem to get the job done.

Level of Difficulty: Well, there's no doubt you get a little more exercise when using a classic push reel lawn mower. But, if you drastically reduce the size of your lawn, it's definitely do-able. In fact, it takes only about 15 minutes to mow, trim, and edge the little bit of grass we have left. Would it be faster with a power mower? I doubt it, though it might take a little less man power. But, we definitely saved money with this option. The reel mower cost only about $100, and we don't have to buy gas for it - the only maintenance is having the blades sharpened every few years.

So, on that difficulty scale of 1 - 5 (5 being the hardest), I'm going to rank this one about a 2, assuming you've reduced the size of your lawn. Although it's a little more difficult to push the mower, it's really not that hard at all, and you save the hassle of getting gas to fill the thing. Plus, it's nearly silent to operate, so you can mow the lawn at any time without worrying about disturbing the neighbors.

I should mention, though, that you may take a little ribbing from your neighbors. "Hey, Cleaver!" one neighbor down the street calls out every single time we mow the lawn. But we're willing to take a little guff to make My Florida Backyard just a little bit greener.

P.S. I didn't mention other power tools for maintaining your yard, such as leaf blowers. Suffice it to say that doing the work by hand will always be a little more difficult, but it can (and really should) be done that way. When I was a kid growing up in Ohio, we raked the leaves from an acre of trees by hand every fall, and we did it as a family activity. Did I love doing it? Probably not. But rakes are cheap, and we didn't have much money. Now, here in Florida, a leaf blower is pretty much inexcusable, given the lack of "fall foliage". Come on, people. Get out the rake, if you must. Or better yet, plant gardens under your trees and let the leaves fall where they may, providing free and excellent self-mulching.

Tuesday, March 31, 2009

Keep Off The Grass

In my post on March 30, I introduced the National Wildlife Federation's six tips for a green garden. It's time to begin taking a look at those tips, to figure out if maybe, just maybe, it's a little easier being green than Kermit the Frog thought.

Tip #1: Reduce the size of your lawn. Better yet, consider eliminating it entirely.

Why? In a place like Florida, where we're basically a rain forest for one half of the year and a desert for the other half, grass just requires too much upkeep.
  • Grass is a notoriously water-hunger monster. It takes at least an inch of water a week to keep a lawn green. We simply don't get that on a regular basis here in Florida from November through May. That means you'll have to water the lawn to keep it healthy, costing time and money. Not to mention the fact that this drought has prompted some new and very tricky watering restrictions for most of us. Do you really want to get up to turn on your sprinklers at midnight?
  • Once summertime hits, at least an inch of rain a week is almost guaranteed. What does that mean for grass? It G-R-O-W-S. What does that mean for you? You M-O-W. Now, I'm sure that there are those out there who think there's nothing more fun than mowing the lawn on a 90 degree day (with 90% humidity!) but for everyone else, it's just a chore. Plus, if you're using a gas-powered mower, your carbon footprint is surprisingly large.
How? There are a lot of options out there, from creating gardens to planting groundcovers. Here in My Florida Backyard, we've eliminated over half our lawn by creating gardens full of native and Florida-Friendly plants. To see details, read my previous posts Ch-Ch-Ch-Changes and Sunshine on My Shoulders.

Level of Difficulty: There's definitely an initial investment of time here, ranking from 4 - 5 on the scale of 1 - 5 depending on what you decide to do. However, down the line, your payoff is very rewarding indeed! Our lawn maintenance is almost zero during the winter months, and during the summer months, it takes only 10 - 15 minutes a week.

So, for tip #1, eliminating your lawn, I think it's safe to say that ultimately, it actually is easier being green. Put in the work up front, and reap the benefits for years to come, like we do in My Florida Backyard.

Monday, March 30, 2009

It's Not That Easy Being Green (or is it?)

Kermit the Frog famously told us it's not easy to be green. And in many ways, I think he may be right. It would be a lot easier to throw all my trash away, instead of separating for recycling. It would be a lot easier to spray every ant wandering my yard with pesticides, or to buy the Miracle-Gro readily available at every store instead of scouring the internet for organic alternatives. But surprisingly often, being green is actually easier than the alternative.

In an article from this month's National Wildlife magazine, Janet Marinelli asks "How Green Is Your Garden?" She highlights yards in California where the gardeners have created gardens that help reduce carbon emissions. Pictures highlight landscapes full of blooming flowers and cool green oases, all intended to require minimal watering, chemicals, and upkeep from power tools.

Janet's article includes Six Ways to Save Energy and Reduce Your Yard’s Carbon Footprint. In an effort to consider if it really is harder to "be green", I'm going to dedicate my next series of blog posts to considering these six tips, all of which we've employed to some extent in My Florida Backyard. I'll let you know what we've done to comply, and how they rate on a difficulty scale of 1 - 5, with 1 being ridiculously easy and 5 being a heck of a lot of effort.

For now, here are the six tips, with full and complete credit given to National Wildlife magazine, published by the National Wildlife Federation, April/May 2009 edition.

1. Reduce the size of your lawn. Better yet, consider eliminating it entirely. Families with young children require only a small area of lawn where the kids can play. Everyone else can manage without turf by creating patios for living space, enlarging planting beds or installing a rock garden.

    Tip: Consider replacing your lawn with a native wildflower meadow. This will provide habitat for wildlife and requires no watering after its young plants are established. Since introducing plants to your property that are not indigenous to your region can contribute to ecological problems, ask your local native plant society which species are appropriate to cultivate.

2. Use hand tools instead of power equipment. When you reduce the size of your lawn, for example, you’ll only need a push mower.

3. Choose materials with low-embodied energy. Brick and concrete have large carbon footprints compared to gravel and especially wood. Used brick and other recycled materials are good choices, too.

4. Emphasize woody plants that capture more carbon than fleshy herbaceous species. Create a flower meadow or vegetable patch, but plant most of your property with low-maintenance native trees and shrubs, preferably those that also provide food and nesting and resting places for birds and other wildlife. Again, choose species native to your region.

5. Plant trees and shrubs where they will block winter winds and provide shade in summer. This will reduce the amount of energy required to heat and cool your home and thus reduce your carbon footprint even further. The particular landscape strategy depends on your climate.

    Tip: For more details, see "Landscaping for Energy Efficiency," a booklet produced for the U.S. Department of Energy and available online at www.eere.energy.gov.

6. Minimize, or better yet eliminate, the use of fertilizers and pesticides on your property. Use compost and mulch produced from garden trimmings to enrich your soil instead, and use native plants that are naturally pest resistant.

Saturday, March 28, 2009

Whistling in the Dark


In about 15 minutes, Earth Hour 2009 will reach the Bay Area, and we'll be turning out our lights to participate. I doubt many others in the neighborhood will participate - the word about this event in Tampa has been pretty minimal. Still, we'll be joining in, just to make a statement.

I've read a lot of skepticism on the web about Earth Hour. Most people don't see how it can make any real difference (and some deny the human effects on global warming altogether). And while it's true that turning out our lights (mostly CFLs in our house anyway) for one hour won't really effect our electric bill, I think a lot of people are missing the point.

We all use lights everyday that we don't really need, along with a lot of other electronics. A neighbor across the lake has a "security" motion-activated light that seems to illuminate nothing in particular, and constantly goes on and off all night long as neighborhood cats and ducks prowl their backyard. Office buildings are lit up on the outside everywhere, creating interesting city skylines but obliterating the night sky. I myself turn on a light in the bedroom every night when it gets dark, even though we seldom go in there until bedtime.

Whether folks want to believe it or not, using electricity has a big effect on the earth. Most of the power in the US comes from coal plants, and these are unbelievably dirty. Don't believe the hype about clean coal, either (this means you, President Obama!) - it really doesn't exist. Earth Hour is an event designed to help us all think about what we really need from electricity, and what we can make adjustments to do without, or at least use less frequently.

We here in My Florida Backyard will spend our Earth Hour out on the porch, enjoying the evening breeze and talking about possible change we might make in our lifestyle to make the Earth a better place.

So, even though Bay News 9's "non-scientific poll" showed that 63% of those in the Bay Area don't plan to participate in Earth Hour, and the city of Tampa itself is only making the small symbolic gesture of darkening the St. Pete Times Forum, we're going to spend the next hour in the dark, enjoying My Florida Backyard in the dusk with no lights on to distract us.

(I'm sorry, but I have to use this opportunity to tell one of my favorite childhood jokes. "Mother, I'm awfully glad Thomas Edison invented the lightbulb." "Why is that, dear?" "Because, otherwise we'd all be watching TV in the dark!")

Ooh, Baby Baby

It's that time of year! The first of the ducklings have arrived. After several months of catching mating ducks in My Florida Backyard every time we turned around, we spotted the first babies of the season today. By my count, there were seven ducklings following their muscovy mama through the waves of the lake on this very windy March day.


Welcome, babies! May you live long and prosper.