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The Bay Gardener by Dr. Francis Gouin

Once trees reach a certain size, roots cannot re-stabilize the plant

The combination of saturated soil and strong winds has tilted trees and tall shrubs. If the trunk of a tilted tree is thicker than four ­inches, it is unlikely that the tree can be straightened and remain upright without permanent support. This is also true of large shrubs. The problem lies with the inability of roots larger than two inches in diameter to regenerate and develop sufficient size to stabilize the plant.

Keeping up, veggie by veggie

This has been a great year for asparagus. Spears are popping out of the ground daily, growing four to six inches in one day. I find it best to cut the asparagus just below the soil line and harvest spears that are at least six inches above ground. This allows you to snap the bottom of the stem, which guarantees they will be free of woody tissues. Keep asparagus beds free of weeds by hoeing weekly. To avoid promoting additional weed growth, scrape away the weeds with minimal disturbance of the soil.

Sometimes you need fertilizers

Am I an organic gardener? I’m often asked that question. I suspect that many who read this column conclude that my frequent reference to composting and compost in gardening means I must be an organic gardener. They seem shocked when I say that I use chemical fertilizers in addition to amending my soils with compost. My reasoning is that of a scientist.

Test your soil to put them to work

Horticulture is a science, not a guessing game.     I can remember my pipe-smoking, tobacco-chewing grandfather putting garden soil in his mouth to taste if it was sweet or sour. I was impressed at the time, but looking back on his method of testing soil, I know it would have been impossible for him to make any determinations of the pH or of nutrients by taste.

One of gardening’s incomparable pleasures

There is nothing like sneaking into the garden in mid to late July after the potato plants have finished flowering and stealing a few thin-skinned potatoes. If you hill your potatoes with compost in place of garden soil, you can harvest potatoes without disturbing the plant. At the final harvest, you get the added benefit of potatoes that are almost dirt-free.

How to control these and other web-builders

Those white webs expanding in the crotches of cherry, crabapple and Juneberry trees are made by eastern tent caterpillars. Last summer and early fall, the adults laid their eggs in these favorite trees. As the larvae emerge, they spin a web around the nest, giving it protection from the weather. In the evening, the larvae crawl out from under the web to feed on nearby tender young leaves. Just about the time the sun rises, they return to the web for protection. As the population of larvae increases and the larvae increase in size, so does the webbing of the nest.

Plants are survivors

The spring of 2016 will be remembered as a short spring and a very short summer followed by a short fall — all within four weeks between March and April. Those 70-degree days in mid March stimulated the vegetative buds in many woody ornamentals to swell, causing the winter bud scales to drop to the ground. This left the buds susceptible to damage by freezing temperatures.

Crowded bulbs are smaller bulbs and produce smaller flowers

As the trumpets of daffodil petals herald spring, we see clumps growing in roadside banks as well as in gardens. Pretty as they are, the flowers in those large clumps are not as large as those of single plants or smaller clumps. Crowded bulbs are smaller bulbs and thus produce smaller flowers due to a lower reserve of food.     Professional gardeners dig up and thin out clumps of daffodils every five or six years. This practice allows them to not only maintain flower size but to also expand plantings.

Grow a patch of rhubarb

My old friend Bill Burton and I once discussed eating freshly harvested rhubarb as kids during hot summer days in New England, where every home had a rhubarb patch in the backyard. Bill raved about his mother’s rhubarb-custard pie, while I raved about my mother’s strawberry-rhubarb pie. I can still picture myself sitting on the back stairs of our home with a fist full of sugar in my left hand and a freshly harvested stalk of rhubarb in my right. Before each bite, I would dredge the base of the rhubarb stem in the sugar.     Those were the days.

A successful harvest depends on the right bulbs for our hours of light

Onions are good for your health, and generally they are easy to grow. Let me give you some advice on growing them successfully.     Plant onion sets and you’ll harvest only green onions. Most sets you buy are short-day onions, which produce bulbs only when grown during the winter months with 10 daylight hours or less. Planted in the spring, as daylight hours grow longer, they produce only onion tails, your green onions.