vegetable-garden tuneup: make room for more

Kim Cornelison

The Witch hazels are great winter flowering shrubs and small trees. If your garden is on the small side the Witch Hazels or Hamamelis can be kept in check by judicious pruning. Take care not to prune off and stop the scented winter flowers. Careful annual pruning can encourage the formation of more flowering sideshoots.

Monitor cool-season crops for pests, such as aphids and various caterpillar species (cabbage loopers, cross-striped cabbageworm, and diamondback moth caterpillars). Properly identifying these pests will help in selecting control methods. For aphids, there are many natural predatory insects, such as lady beetle larvae, lacewings, syrphid flies, damsel bugs, and wasps. For more information on predatory insects, see HGIC 2820, Natural Enemies: Predators and Parasitoids. If additional control is needed for aphids, a commercially prepared insecticidal soap may be used. For more detailed information on insecticidal soap, see HGIC 2771, Insecticidal Soaps for Garden Pest Control. A naturally occurring bacterium, B.t. (Bacillus thuringiensis), may be used to control young caterpillars. As with all pesticides, read the label and apply at recommended rates and frequencies. Regardless of what pest you have, it is a good idea to maintain good sanitation in the garden. Always remember to remove any leftover plant debris at the end of the season. This will help reduce many over-wintering pest problems.

There is an old saying, “The enemy of my enemy is my friend.” We can apply this saying to gardening as just about every insect pest that plagues our gardens has one or more natural enemies that prey on or parasitize it. These enemies (or friends to us) include ladybugs, praying mantids, assassin bugs, ground beetles, robber flies, parasitic wasps, syrphid flies, and many others. Though often overlooked, these beneficial species can help significantly in managing insect pests in our vegetable gardens.

As you drink your recommended 6 to 8, 8-ounce glasses of water per day, don’t forget that your vegetable garden should also never be short of water this summer.  Did you know that water makes up 80 to 90 % of vegetable and fruit weight? Water affects yield, fruit size, and quality.  It also prevents a variety of disorders such as toughness, off-flavor, cracking, blossom-end rot, and misshapen fruit.

Proper soil preparation when growing vegetables is the key to successful and bountiful harvest but if you neglect to do this, it can greatly hinder the cultivation of demanding plants.

This post may contain affiliate links, which means that I may receive a commission if you make a purchase using these links. As an Amazon Associate I earn from qualifying purchases. Discover the secrets to a thriving f

The new red-foliage polychroma cultivar, ‘Bonfire,’ seems to stand up better to summer, so I’m not chopping it down. Will I regret it? Don’t know…only my second year with the plant, so it’s all an experiment.Which is what cutbacks are: You observe what is going on, and if it’s not looking good, you consider administering a haircut.The pulmonarias were shorn to the ground after flowering last month, and already have a new set of showy leaves (instead of tattered, about-to-mildew old ones). They would have grown a new set right up and over the old, but I prefer to just shear them, rather than fussily deadheading each flower stem.Perennial salvias, like the popular ‘May Night’ and the nemorosa varieties ‘Snow Hill’ and ‘Caradonna,’ can do with a good, hard cutback when they’re done blooming. A new rosettes of foliage will be emerging down below, and a lower-impact second flush of bloom will eventu

With surprisingly timed summer flowers, hot fall foliage and handsome, peeling bark to recommend it, Stewartia pseudocamellia (top) is a treasure. It grows happily even in part-shade, and reaches about 25 feet here. Read its profile. Perhaps the smallest tree I grow (maybe 5 feet tall and 9 feet across at present) is an oddball weeping Kousa dogwood, Cornus kousa ‘Lustgarten Weeping,’ which stirred some controversy at A Way to Garden when I almost sent it packing last spring, after years of non-love for it. I relented, and made it a proper home of its own, as you said you desired.

CRAZY, BUT TRUE: I ALWAYS THOUGHT the quirky “voice” of the Fedco Seeds catalog, named C.R. Lawn—get it? Lawn?—was a fictitious character, the made-up but pervasive green spirit of the longtime seed cooperative’s brand. But he’s not make-believe. He’s the Maine-based Fedco’s founder, and an organic gardener, market grower and seedsman with more than 30 years’ experience, and he took the time to answer some of my questions on what to grow and how to grow it better. The result is a vegetable-gardening Q&A (from peas to potatoes, lettuce, tomatoes, mineral dusts and more), with the very real C.R. Lawn—and the chance to win three $20 Fedco gift certificates I bought to share with you, and say thanks to him. Let’s jump right in:

MY LATEST WEEKLY SHOW with NPR affiliate Robin Hood Radio, WHDD in Sharon, Connecticut, tackles the topic of replanting your vegetable garden for a harvest well into the fall. Stream it, or subscribe free on iTunes.Soil Too Hot and Dry for Germination?SOME SEEDS WON’T GERMINATE in baking soil, so a day or two before I sow things in high summer, I moisten and shade the bed-to-be. Cultivate at least lightly to prepare the seedbed, then water well and erect knitted shade fabric on hoops (over the area, or just lay it on the ground).  With heat-sensitive crops like salad things and spinach, I leave the shade cloth up as the plants develop.But When Exactly to Sow What?IT DOESN’T ALL GO IN AT ONCE—each crop has its timing, thoug

I WISH I COULD walk every visitor around personally at Garden Conservancy Open Days—and answer every question. But that’s impossible when hundreds of guests stream through for the self-guided walkabouts I’ve been hosting for 20 years (last one of 2017 is on August 19, top of page).Many visitors have asked me to take it to the next level. Now Andrew Brand of Broken Arrow Nursery—they always do plant sales at my big Open Days—and I are offering a sort of “Open Day-Plus” on September 16: smaller, ticketed, workshop-style events and sales lasting a half-day each, with lots of individual attention.Space is limited, at each of two sessions per day.Ticket includes $25 Broken Arrow shopping credit.The September program (from 9:30-noon, and repeated from 1:30-4 PM):Baked Treats & Beverages: Fuel up, get acquainted, and te