Zone 5 · Sweet Pea
Planting Sweet Pea in Zone 5
Lathyrus odoratus
✅ Sweet Pea thrives in zone 5 (hardy 2–11)
Can I plant today?
⏳ Too early to direct-sow
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 October 15
Bloom window
May – July
Peak bloom
June
Sun required
full sun
Mature height
72"
Spacing
6" apart
Type
annual
How to plant Sweet Pea in zone 5
Soak seed overnight; direct-sow 4-6 weeks before last frost against a trellis. Cool-season; fades in heat.
Pair with these for continuous bloom
Sweet Pea peaks in June. These companions keep your bed in color before and after.
Want a full bed designed for zone 5?
Sign up free. GimmeBlooms builds a bloom-succession layout withSweet Pea and 3–5 perfect companions.
Design my bed →