![]() ![]() Improves soil health (increases microbial activity, nutrient- and water-holding capacity, soil pore spaces, and air penetration) as it decomposes.ĭon't add more than a 3-inch layer of mulch because deep mulch applications may:.Prevents damage to stems and trunks by lawn mowers and weed cutters.Reduces soil compaction from mowing equipment.Insulates soil and buffers extreme summer and winter soil temperatures.Helps to control seed germination and growth of weeds.Serves as a sponge that prevents runoff around plants growing in heavy clay soils or on sloped sites.Mulching around newly planted trees and shrubs with organic materials (wood chips, pine needles, etc.) has several advantages over bare soil cultivation. Apply a 3-inch layer of organic mulch around newly planted trees and shrubs in a circle that extends several feet beyond the tree or shrub canopy.Leave the top of the root ball bare and start the mulch application at the outer edge of the root ball.Eliminate turf and weeds from the base of the plant out to several feet beyond the plant canopy.To optimize root production, water uptake, and establishment of newly planted trees and shrubs: As a result, woody plant establishment and growth is slower in turf areas than in mulched or bare soil areas. Turf wins because its dense fibrous root system prevents woody plants from producing water- and nutrient-absorbing roots in the top few inches of soil. When trees and shrubs are planted into turf, competition for nutrients, water, and space occurs below ground between turf roots and woody plant roots. Mulching trees and shrubs maximizes water uptake Treegator® bags can also be used to provide a slow delivery of water over the root balls of establishing trees and shrubs.Use a slow trickle of water to fill the reservoir to allow water to slowly infiltrate into and around the root ball.Create a water reservoir by making a circular mound of earth 3 to 4 inches high around the plant at the edge of the root ball.Tree roots grow approximately 18 inches per year in Minnesota, so expand the area being watered over time.This encourages the roots to expand beyond the root ball into the backfill soil. Be sure to keep the backfill soil in the planting hole moist.Apply water directly over the root ball.As roots grow and spread, irrigation volume will need to be increased.When watering newly planted shrubs, apply a volume of water that is 1/4 - 1/3 of the volume of the container that the shrub was purchased in. ![]() When watering newly planted trees, apply 1-1.5 gallons per inch of stem caliper at each watering (see table).How much to water newly planted shrubs How much to water ![]()
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