Zone 8 · Madagascar Periwinkle
Planting Madagascar Periwinkle in Zone 8
Catharanthus roseus
✅ Madagascar Periwinkle thrives in zone 8 (hardy 2–11)
Can I plant today?
✅ Safe to plant Madagascar Periwinkle outside
Last frost has passed. Transplant after soil warms (wait past last frost). Heat- and drought-tolerant summer workhorse.
Evaluated for April 27, 2026 ·
Zone's last frost
around March 15
Zone's first frost
around November 15
Bloom window
June – October
Peak bloom
July
Sun required
full sun
Mature height
14"
Spacing
12" apart
Type
annual
How to plant Madagascar Periwinkle in zone 8
Transplant after soil warms (wait past last frost). Heat- and drought-tolerant summer workhorse.
💡 In zone 8, start seeds indoors around January — about 8 weeks before your last frost.
Pair with these for continuous bloom
Madagascar Periwinkle peaks in July. These companions keep your bed in color before and after.
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