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- 7i>M (Jm.\ ad ~ ~ a.Iervø GnInt ~ GuidrIinøs 9.4 Transplanting Season Trees can be planted November through April. Balled and burlapped trees should be planted as soon as possible after digging. If trees must be stored, it is important not to allow the root system to dry out, i.e., bury root balls in wood chips or similar material. "" 9.5 Arter Planting Care Newly planted trees require special attention during the first three growing seasons. a) Ample soil moisture must be maintained throughout the first and second growing season. Supplement natural rainfall with 1 inch of water every 7 days May through September the first year and every 14 days May through September the second year. Watering can be skipped if natural rainfall totals 1 inch or more since the last scheduled watering. Note that since overwatering can be detrimental to the tree's health, the supervisor should examine the soil (feel the upper layer) for evidence of ample moisture. b) Mulching aides water retention, moderates soil temperature and provides a favorable environment for microorganisms. A layer of mulch 3 to 4 inches deep is required at the time of planting. Mulch may be either bark granules/chunks. wood chips or composted leaves. Mulches must be renewed annually or more often as needed. c) Newly planted trees require a high phosphorous fertilizer (17-23-6) for root and stem growth, while established plant materials require a balanced fertilizer for foliage growth. d) Weed control should be done twice annually for the first three years, April or May and July or August. Use a contact herbicide like Glyphosate (Roundup~) according to the label. Prior to spraying, remove all ground level and other sprouts on the stem that might come in contact with the spray. Spray only the green foliage you intend to kill. Keep the spray away from the foliage of the tree and any other plants you need to protect. 10