Zone 4 · Wishbone Flower
Planting Wishbone Flower in Zone 4
Torenia fournieri
✅ Wishbone Flower thrives in zone 4 (hardy 2–11)
Can I plant today?
✅ Start Wishbone Flower indoors now
You're 4 weeks from last frost. Transplant after last frost. A rare long-blooming shade annual — use wherever impatiens go.
Evaluated for April 27, 2026 ·
Zone's last frost
around May 15
Zone's first frost
around September 15
Bloom window
June – October
Peak bloom
July
Sun required
part sun, shade
Mature height
10"
Spacing
10" apart
Type
annual
How to plant Wishbone Flower in zone 4
Transplant after last frost. A rare long-blooming shade annual — use wherever impatiens go.
💡 In zone 4, start seeds indoors around February — about 10 weeks before your last frost.
Pair with these for continuous bloom
Wishbone Flower peaks in July. These companions keep your bed in color before and after.
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