Planting a Double-Grafted Rose Tree: Why the Bud Union Is So High

Rose Tree Anatomy Explained

Zone 7 gardener has a double-grafted rose tree with bud union ~20" up the stem. Questions planting depth (thinks 2" deep) and why union is so high.

How Rose Trees Are Made

A wild Rosa rugosa is grown to ~3 feet, side shoots removed. Then a modern rose is budded onto the top. The bud union sits at the top of the trunk—by design.

Planting & Winter Care

• Plant at same depth as in container—don't bury the top graft.
• Zone 7: tree should survive winter. Optional: wrap top (modern rose part) in bubble wrap after full dormancy (all leaves dropped, no warm spells coming).
• Bubble wrap too early = greenhouse effect = unwanted growth = winter kill.

The high bud union is normal for tree roses.