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Flowers, Fruits, and Frass

Local and statewide information on a variety of current topics for home gardeners and market growers.

Fall Gardening Tips by Ron Wolford


URBANA, Ill. - Taking a walk in cool, crisp weather, attending football games, picking apples, and choosing the perfect pumpkin are some quintessential activities for the fall, said University of Illinois horticulture educator Ron Wolford."Planting bulbs is probably the number one garden activity that takes place in the fall, but there are a number of other gardening and fall-related activities to do," Wolford said. Some tips for fall gardening tasks include:

Get ready for frost. "On average, the first fall frost occurs around October 15, but we have had frost in September," Wolford noted. "First frosts usually occur when cool weather arrives with clear nights and light winds." Open grassy areas are most likely to have frost versus areas under trees that are protected because the trees keep heat from escaping. "Plantings close to the foundation of your home often survive a first frost because of the heat given off from house," he said. "To protect plants cover them with blankets, newspaper, straw, sheets, tarps, boxes, or plastic sheeting. Apply the covers later in the afternoon and remove them in the morning."Floating row covers can also protect plants. This spun polyester material will raise the temperature 2 to 5 degrees around the plants, Wolford said.

Plant a green manure crop. Green manure crops include clover, annual ryegrass, winter wheat, winter rye, and buckwheat. Green manure crops turned into the soil in the spring will improve soil structure and add organic matter and nutrients to the soil. "Sow the seed thickly. Keep moist until germination occurs. Cut back plant's flowers to prevent self-seeding," Wolford said.

Transplant perennials. "Transplant and divide perennials now," Wolford recommended. "If you are planning to transplant established plants, cut them back by half and move them to a prepared spot. Keep them watered until the plant is established. "Divide perennials when flowers get smaller, when the center of the plant dies out, or when the plant gets too big. "All transplanting and dividing should be completed by October 1 to allow good root development before cold weather sets in," he noted.

Repair lawn. Autumn is the best time to repair lawns, Wolford said. Seeding bare spots in the lawn from late August to mid-September will allow the new growth to have enough time to germinate, grow and harden off before cold temperatures arrive. "There is less competition from weeds in the fall because most of the annual weeds are dying out. Plus we are usually blessed with cool temperatures in the fall, which is great for growing grass. Ideally dig the soil to at least 6 to 8 inches deep, spread grass seed over the area, and tamp down. Keep the soil moist until germination. Cover with weed-free straw to conserve moisture. "If you are laying down sod, water the new sod several times a day for one to two weeks until it begins to knit or take hold. Be sure that water goes down through the thick sod and moistens the soil underneath for good root development. Do not let seed or sod dry out," he cautioned.

Plant trees and shrubs. Plant trees and shrubs from September through early October. "Planting during this time period will allow the plants to become established before winter sets in. Water plants every 7 to 10 days during dry weather until the ground freezes," he said.

Garden clean-up. Remove dead plants from the vegetable garden after frost. If plants were not diseased, they can be turned into the soil or placed in a compost pile. "Leaving dead plants in the garden will provide a home for overwintering insects. Spread a 2- to 3 inch-layer of organic matter over the garden and dig in. The garden will be ready for planting in the spring," he said.

For more gardening information, visit the University of Illinois Extension Hort Corner.

 

 



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