Zone 6 · Rose of Sharon
Planting Rose of Sharon in Zone 6
Hibiscus syriacus
✅ Rose of Sharon thrives in zone 6 (hardy 5–9)
Can I plant today?
✅ Safe to plant Rose of Sharon outside
Last frost has passed. Plant in spring. Late to leaf out — don't give up on it. Blooms when most shrubs are done.
Evaluated for April 27, 2026 ·
Zone's last frost
around April 15
Zone's first frost
around October 15
Bloom window
July – September
Peak bloom
August
Sun required
full sun
Mature height
96"
Spacing
72" apart
Type
perennial
How to plant Rose of Sharon in zone 6
Plant in spring. Late to leaf out — don't give up on it. Blooms when most shrubs are done.
Pair with these for continuous bloom
Rose of Sharon peaks in August. These companions keep your bed in color before and after.
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