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Berries
By now my vegetable gardens is all planted, annual flowers are in, the weeds are pretty much under control. Time to relax and smell the roses? Well, maybe not. There are always tasks for the gardener. This is a good time to plant some berry bushes.
The first thing to do, if you want a good berry patch, is to test the soil to find out if you need to add specific nutrients. Go to your university extension Web site, or Google “soil testing”. You should be able to download a form and get instructions on how to collect a soil sample, and where to send it. All berry patches will also need some added organic matter such as compost, aged manure, or leaf mold.
Elderberries
Competition from weeds is an important issue for berries. You can’t just use a rototiller to chew up a patch of field or lawn to plant your berries. You really need to dig out the sod – or smother it this year to plant next year. A layer of 4-mil black plastic spread out over a lawn that has been cut short will kill the grass, roots and all, by the end of the summer. Landscape fabric will do the same, but is more expensive. Next spring the dead grass will add organic matter when you mix it in.
If you want to plant this year you have two choices: dig out the sod by hand, or rent a sod lifter – I reject the idea of using chemicals to nuke the grass. The sod lifter is powered by a gas engine; it sends a blade under the sod and along the edges to slice it loose. You still have to pick up the sod and lug it away. And you can’t roll it up like a rug – it’s too heavy. I slice the long strip of sod into 1- or 2-foot sections. Or, for small areas, you can just use a shovel to slice sod into one foot squares to pry out by hand, which is very labor intensive. Ugh.
All berries like sunshine. Six hours per day is the minimum for a good crop. More is always better. Berries do not like root competition, so keep your berry patch away from trees. I planted a rose recently that was more than 50 feet from a Norway maple, and found the soil full of tree roots coming from the maple. So pick a site far from trees if possible.
Raspberries are a great choice for the home gardener: they are expensive at the store and do not keep well. Better to grow your own and eat some every day in season. What are the best varieties? I asked Alicia Jenks, the owner of Green Dragon Farm, a pick-your-own blueberry and raspberry farm in Weathersfield, Vermont. She suggested getting ‘Prelude’ or ‘Killarney’ for an early crop. Then ‘Encore’ or ‘Latham’ for mid-season berries and ‘Heritage’ for late-season berries.
Alicia Jenks suggested planting raspberries 3 feet apart in a staggered double row in a 5 or 6-foot wide bed. Add plenty of compost to the soil and work it in well – a 4-inch layer is a good. She adds Pro-Gro, an organic, slow-release fertilizer to the soil at planting time in each hole. Although you can buy bare root plants early in the spring, most sellers of them are sold out by now. Potted bushes are still readily available at garden centers.
Blueberries are another good choice for every home gardener. The soil requirements for blueberries are very different than for raspberries, however. Paul Franklin of Riverview Farm, a pick-your-own apple, pumpkin
Blueberries
and berry farm in Plainfield, NH, told me that there are just three important things to get right in order to have a good crop: proper pH, proper pH and proper pH. He went on to explain that the soil must be very acidic in order to get a good crop – in the range of 4.0 to 5.5. So get your soil tested and add a soil acidifier such as elemental sulfur to get the soil pH right. Pro-Holly or Holly-Tone (organic acidic fertilizers) are good for blueberries, too, and can be added around existing bushes now.
Blueberries should be spaced about 5 feet apart in rows that are far enough apart to allow mowing. Most commercial growers mulch with woodchips to keep down weeds. The roots grow close to the surface, so you can’t dig out weeds willy-nilly – you may damage roots. So get grasses and weeds out in a 5-foot circle before you plant, and mulch well to keep them out. Weeds will steal the water and nutrients your blueberries need.
Elderberries
Elderberries are an easy crop if you have a moist location on your property. I grow 3 varieties on the bank of a little stream, and they do well. Pollination is better if you have 2 or more different varieties. The white, fragrant flowers form big clusters at the top of the bushes and are decorative right now. In the late summer I harvest elderberries by sniping off clusters of berries; later, in the house, I pull the berries off their stems and freeze them. I like to sprinkle them on hot oatmeal in winter and I also make an elderberry syrup to ward off colds.
So go plant some berries, or more berries, or different kinds of berries. You’ll be glad you did.
Henry Homeyer is a gardening consultant and Master Gardener living in Cornish Flat, NH. Contact him at henry.homeyer@comcast.net. His Web site is www.Gardening-Guy.com.
Tending Your Soils, Now!
I have a confession to make: I added soil amendments last week without first getting my soil tested. I teach gardening, and the first thing I say about soil is it to get it tested before you do anything. But winter is coming, and I have a good idea what a soil test would tell me. So I added some limestone to my lawn around an aging maple tree, and I added sulfur around my blueberries.
Here’s what my thoughts were: I know that the acid rain we have leaches out calcium from the soil. Maple trees, in particular, suffer if they don’t have enough calcium, so I added some. I used a 28-oz can, spreading 6 containers of agricultural limestone in a circle with a radius of 25 feet around the tree.
Garden Sulfur
I know that blueberries like very acid soil, and that adding some sulfur is a good thing, especially since I haven’t done so in a couple of years. Blueberries perform best when the soil is between pH 4.5 and 5.5, and my soil is probably about pH 6.0. In a 6-foot diameter circle around each bush I sprinkled 1 pound of garden sulfur, which should help.
I recently spoke to soil scientist Dr. Wendy-Sue Harper of Monkton, Vermont to see what she recommended we do at this time of year. Her strongest recommendation was to make sure we cover up any bare soil with leaves, straw or mulch hay. She said that if you have cleaned up the vegetable garden and bare soil is exposed, it’s likely that some of your all-important top soil will wash or blow away before next spring. Gardens on any slope are especially vulnerable to erosion.
Some gardeners take soils for granted. They spread some 10-10-10 fertilizer on the soil in the spring or water with a liquid chemical fertilizer in summer, and they get tomatoes and carrots. But I recommend compost and organic fertilizers because they nourish the beneficial organisms in the soil. In preparing for this article I read a book on soils called, Teaming with Microbes: The Organic Gardener’s Guide to the Soil food Web by Jeff Lowenfels and Wayne Lewis. The book, which is highly technical, makes the point that good soil is chock-full of living organisms, millions in a teaspoon, and that any chemical, including chemical fertilizers, reduce the numbers of living organisms in the soil.
The authors explain that chemical fertilizers are salts. You probably know what happens if you sprinkle salt on a slug. It dies. The same happens to your beneficial microbes when you add chemical fertilizers.
Lowenfels and Lewis explain that the microbes in your soil contain not only nitrogen, phosphorus, potassium (the contents of chemical fertilizer) but also all the micronutrients needed by plants but not found in chemical fertilizer. Bacteria, fungi and other microbes hold onto nutrients in their bodies, only releasing them when they die or are eaten by other organisms. The chemical nutrients in these microbes are in a form that can be absorbed easily by roots of plants when released in the soil.
The area right around the roots of your plants is especially full of microbes. Why? Because plants roots give off excess sugars. Plants produce extra sugars by photosynthesis during the day, and exude sugars at night. That may sound crazy, but it isn’t: plants and microbes in a healthy organic soil share nutrients, helping each other. Plants benefit by having fungi surrounding their roots because fungi hold water and minerals that they share with the plants; fungi benefit by getting food from the plants. It’s a win-win situation.
Fungi produce acids and enzymes that can dissolve minerals that plants cannot ingest. The tip of a fungal hypha (rootlet, if you will) can also breakdown cellulose and lignin, tough materials that contain useful ingredients for plant growth – recycling the nutrients.
As I explained in my book, The Vermont Gardener’s Companion, sandy soils have large particles and don’t hold onto water and minerals easily. Think of sandy soil as golf balls in a wire basket. Water flows right through. Add compost – like adding sponges to the basket of golf balls- and water and nutrients are retained.
Clay soils are more like a bowl of baker’s flour: fine particles that don’t let water pass through easily, and are sticky when wet. Loam is what we want: a mixture of particle sizes that allows water through, but retains water and minerals. Whether you have a clay soil or a sandy soil, the easiest way to get that fluffy, loose loam is to add compost.
Compost adds organic matter to feed the microbes in your soil, attracts beneficial earthworms, and improves drainage. You don’t want to be digging in your garden at this time of year, but you can spread some compost on the soil surface around perennials, shrubs, on the lawn and in the vegetable garden. Don’t walk in your beds now; they are wet and easily compacted, injuring soil structure.
So get your soil tested now, before the ground freezes solid. Come spring it takes 3 weeks or more to get test results from a soil test, as that’s when everyone else wants a test done, too. I recommend getting multiple soil tests: one for the vegetable garden, one for the flower beds, and from specialty locations like the lawn or blueberry patch. Contact your local University Extension Service, or go online.
Henry Homeyer is the author of 4 gardening books. He can be reached at henry.homeyer@comcast.net. His Web site is www.Gardening-Guy.com.