Zone 4 · Rose Mallow

Planting Rose Mallow in Zone 4

Hibiscus moscheutos

✅ Rose Mallow thrives in zone 4 (hardy 4–9)

Can I plant today?

Last frost is in 4 weeks. Wait until soil warms.

Evaluated for April 27, 2026 ·

Zone's last frost

around May 15

Zone's first frost

around September 15

Bloom window

July – September

Peak bloom

August

Sun required

full sun

Mature height

60"

Spacing

36" apart

Type

perennial

How to plant Rose Mallow in zone 4

Plant in spring in moist soil. Dinner-plate-size blooms; late to break dormancy each spring.

Rose Mallow peaks in August. These companions keep your bed in color before and after.

Shasta Daisy

Peaks in July

Purple Coneflower

Peaks in July

Salvia

Peaks in June

Tulip

Peaks in April

Want a full bed designed for zone 4?