The Time to Transplant Azaleas

Season

• Transplant azaleas during their dormant period for the easiest, most stress-free process. Move any azalea during early spring, before new growth starts. In warmer U.S. Department of Agriculture growing zones 8 to 10, move azaleas in fall after they go dormant for winter. The U.S. National Arboretum recommends fall as the easiest transplant time for azaleas and warns against transplanting in temperatures above 80 degrees F.

New Site

• Choose and prepare an appropriate new site before you dig up the azalea. Find a site with light to moderate shade or filtered sun all day, quick year-round drainage, adequate air movement and at least 5 to 6 feet of space. Azaleas burn in full sun and require space and air for successful growth. Choosing a large site now eliminates the necessity of frequent transplanting.

Soil Preparation

• Prepare the soil ahead of time for these acid-loving plants. The Clemson Cooperative Extension suggests quick-draining, loose soils for azaleas, with high organic content and a pH of 4.5 to 6.0. The Ohio State University Extension notes that azaleas fail in thick, tight or clay soil and suggests a ratio of 50 percent organic amendment to 50 percent natural soil. Dig into the top 12 inches of soil in a 3-foot square and turn 12 inches of organic compost, pine bark mulch, peat moss or leaf mold into the natural soil. The amendment adds acidic nutrition and moisture retention to the soil.

Transplant

• Begin the transplant in early morning, when the soil and azalea are damp with dew. Morning transplants keep the bush and its roots moist and safe during the process. Dig into the soil 12 to 18 inches from the trunk of the bush to locate the root ball, and dig under the roots to remove the entire system. Plant the azalea at the same depth in its new planting location. Water the shrub with 1/2 gallon of water to settle the soil, then lay 3 inches of organic mulch on the soil around the bush.