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Mount Washington Arboretum · Baltimore, MD

Austrian snow pea

Pisum sativum

Annual

Care at a glance

☀️ LightFull sun (6–8 hrs)
💧 WaterRegular; 1 inch per week, consistent moisture
📅 Days to maturity60
🌀 LifecycleAnnual

Where is it growing?

2026Bed 10 · planted 2025-11-01

About this plant

Austrian snow pea is a cool-season legume grown for its edible flat pods harvested before maturity, eaten whole or the tender peas within. It is prized for its delicate, sweet flavor and is equally valued as an ornamental with attractive white or pale purple flowers. Gardeners grow it for spring and fall crops, nitrogen fixation benefits, and because it performs reliably in temperate climates.

Germination

Seeds germinate in cool soil between 40–70°F, with optimal germination around 50–60°F; expect sprouting in 7–14 days. Soak seeds for 12–24 hours before planting to speed germination, or nick the seed coat lightly. Light is not required for germination and seeds will sprout in darkness.

How to plant

Direct sow seeds 1 inch deep and 2–3 inches apart in early spring (as soon as soil is workable in zone 7) or in late summer for fall crop. Space rows 4–6 inches apart or thin seedlings to that spacing. Austrian snow pea is cold-tolerant and can be sown when soil temperature reaches 40°F; it does not transplant well due to delicate roots, so direct sowing is strongly preferred.

Growing tips

Water regularly to keep soil consistently moist but not waterlogged; inconsistent watering causes tough pods and reduced yield. Provide a trellis or brush support 4–6 feet tall early; these vigorous climbers need support by 4–6 inches of growth. Mulch lightly to retain moisture and keep roots cool. Feed with balanced fertilizer at planting or side-dress with compost; excessive nitrogen promotes leafy growth over pods. Watch for aphids, spider mites, and powdery mildew in warm spells; remove affected leaves or spray neem oil as needed.

Harvesting

Harvest pods when they are full and crisp but still tender and bright green, typically 8–10 days after flowering. Snap or cut pods from the vine in the morning when crisp. Continuous harvesting encourages prolonged production; do not let pods mature fully or the plant will slow flowering. Store unwashed pods in a perforated plastic bag in the refrigerator for up to 5 days; use fresh for best flavor and texture.

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