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Gardening tasks that can be done in SeptemberBy Tara McKnight Texas AgriLife Extension Service agent, horticulture, Wichita County Texas Fall will be here before you know it. With the temperatures beginning to cool down, enjoy being outside now. Although, remember to protect yourself from mosquitoes. Here is a list of items that can be done in September. --Coleus and caladiums require plenty of water this time of year if they are to remain lush and attractive until fall. Fertilize with ammonium sulfate at the rate of 1/3 to 1/2 pound per 100 square feet of bed area, and water thoroughly. --Rejuvenate heat-stressed geraniums and begonias for the fall season by lightly pruning, fertilizing and watering. --Now is the time to sow seeds of the many cool-weather vegetables, greens and herbs that thrive through Texas' relatively mild winters. The fall and winter cool season is often more dependable for growing these crops than the spring season. --Nick the seedcoats of Texas bluebonnets before planting to hasten germination, or purchase started seedlings. --Don't allow plants with green fruit or berries to suffer from lack of moisture. Hollies will frequently drop their fruit under drought conditions. Some vegetables such as cucumbers or eggplants also become bitter if underwatered during peak growing times. --Remove weak, unproductive growth and old seed heads from crape myrtles and roses to stimulate new growth for fall beauty. --Prune out dead or diseased wood from trees and shrubs. Hold off on major pruning until mid-winter. Pruning now may stimulate tender new growth prior to frost. --Sow seeds of snapdragons, pinks, pansies and other winter flowers in flats for planting outside during mid-to-late fall. --Prepare the beds for spring-flowering bulbs as soon as possible. It's important to cultivate the soil and add generous amounts of organic matter to improve water drainage. Bulbs will rot without proper drainage. --Continue a disease spray schedule on roses as blackspot and mildew can be extremely damaging in September and October. --Christmas cactus can be made to flower by supplying 12 hours of uninterrupted darkness and cool nights (55 degrees F) for a month starting in mid-October. Keep plants on the dry side for a month prior to the treatment. --Plan to plant wildflowers in early September and October. Check supplies now and order seed for planting in open sunny areas. Consider bluebonnet, Indian paintbrush, coneflower, fire-wheel, black-eyed Susan, evening primrose and many others. Soils should be lightly cultivated prior to planting. --Divide spring flowering perennials such as iris, Shasta daisy, gaillardia, rudbeckias, cannas, daylilies, violets, liriope and ajuga. Your garden and landscape questions are always welcome. You may either contact me at our county Extension office, 940-716-8610, or by e-mail, tcmcknight@ag.tamu.edu. You are always encouraged to visit the Wichita County Master Gardner website at www.overthegardengate.org. Another great website to visit for very useful garden hints and answers is http://aggie-horticulture.tamu.edu/. This article, along with every article, will also be featured on www.joetomwhite.com 24 hours a day under county agents. 9/15/08 Date: 9/9/08 Advertisement
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