Carol Mackie Daphne Tree Hardiness in Wisconsin

'Carol Mackie' Daphne (Daphne × burkwoodii 'Carol Mackie') is a variegated shrub (3–4 ft). A "tree form" is likely a graft onto a standard.

Hardiness

• Shrub form: Zone 4 (–30°F).
• Grafted tree: Hardiness depends on rootstock; often similar or slightly less.

Winter Protection (Zone 5a Wisconsin)

• Mulch heavily (4–6 in. straw/leaves) over root zone after ground freezes.
• Wind barrier: Burlap screen on windward side (not wrapped tight).
• Snow cover: Encourage natural snow drift; don't pile heavy snow on branches.
• Anti-desiccant: Spray (Wilt-Pruf) in late fall.

Site Selection

Plant in part shade, well-drained, acidic soil. Avoid exposed northwest sites. If in container, move to unheated garage for winter.

Check with selling nursery for specific rootstock hardiness.