Transplanting Trees and Shrubs: Timing and Technique for Success

Transplant During Dormancy Only

Early spring (before leaf-out) or fall (after leaf drop). Moving an awake plant is like surgery without anesthesia—traumatic and often fatal.

Root Ball Guidelines

• Bare-root okay if out of ground briefly; keep roots damp.
• Better: dig soil ball. Rule: 12" ball diameter per 1" stem caliper (2" stem = 24" ball).
• Severing some roots stimulates fibrous lateral roots—beneficial root pruning.

Pro Techniques

Nurseries undercut roots with tractor-drawn blades to force fibrous roots, making next-year transplanting easier. Home gardeners can spade-prune around struggling plants in dormancy to revive them.

Replanting

• No air pockets—water thoroughly to settle soil.
• Plant at nursery depth (top of ball 1–2" above grade in clay).
• Stake to prevent wind-rock during establishment.

Timing, root ball size, and aftercare determine survival. Do it dormant, do it right.