Planting Tea Roses in Autumn in Zone 6: Dormant Planting Advantage and Rootstock Risks

Autumn Is Excellent — If Plants Are Dormant

Bare-root or container roses shipped dormant (late Oct–Nov) establish roots over winter for strong spring growth. Summer planting fails due to heat stress.

Critical Warning

Zone 6 is borderline for many tea roses. If the graft union isn’t buried 2 inches deep, winter kill exposes the rootstock (usually ‘Dr. Huey’) — you get a different rose.

Planting Steps

1. Dig wide hole; amend with compost.
2. Set plant so graft union is 2 inches below soil.
3. Water deeply; mound soil 8–10 inches over canes for winter.
4. Remove mound in early April.

Better Long-Term Choices

Consider own-root roses (no graft) or hardy shrub roses (Knock Out®, Canadian Explorer series) for Zone 6 reliability.