How to grow sugar snap pea
Overview
Sugar snap pea (Pisum sativum var. macrocarpon) is a cool-season vegetable grown for its tender, edible pods and sweet peas. Regular harvesting encourages continued production. It has excellent frost tolerance, making it ideal for cooler Australian gardens.
Varieties
- Sugar Snap — The original tall variety, producing heavy crops of sweet, crisp pods.
- Sugar Ann — A compact, early-maturing dwarf variety ideal for containers or small gardens.
- Oregon Sugar Pod II — Stringless, disease-resistant pods with excellent flavour, suitable for cooler climates.
- Cascadia — A vigorous, disease-resistant variety with high yields of sweet, crunchy pods.
Soil Preparation
Sugar snap peas prefer well-drained, loamy soil rich in organic matter. Ideal pH is 6.0–7.0. Add compost or well-rotted manure before planting. Avoid heavy clay or compacted soils.
Growing Guide
Sow seeds directly in full sun in well-drained soil with a pH of 6.0–7.0. Sow 2–3 cm deep, 5 cm apart in rows 45–60 cm apart. Provide a trellis or netting at least 1.5 m high for climbing varieties. Keep soil consistently moist but not waterlogged. Time sowing so peak harvest occurs before summer heat, as plants stop producing in high temperatures.
Sowing
Sow seeds directly 2–3 cm deep, 5 cm apart in rows 45–60 cm apart. Seeds germinate in 7–14 days in cool soil. Soaking seeds overnight can speed germination. Do not transplant as peas dislike root disturbance.
Care
Feed every 2–3 weeks with a balanced liquid fertiliser during active growth. Pinch out growing tips once plants reach the top of the support to encourage side shoots. Remove any yellowing leaves to maintain airflow.
Companion Planting
Good companions include carrots, cucumbers, beans, and corn. Avoid planting near onions, garlic, and other alliums, which can stunt pea growth.
Common Pests & Risks
Powdery mildew is common in humid conditions; improve airflow and avoid overhead watering. Aphids can be controlled with a strong water spray or insecticidal soap. Birds may peck at emerging seedlings; use netting or scare devices.
Harvesting
Harvest pods when they are plump and crisp, typically 60–70 days after sowing. The pods should snap cleanly when bent. Regular picking encourages the plant to produce more pods.
In the Kitchen
Harvested pods can be eaten raw or lightly cooked. They are excellent in stir-fries, salads, or steamed as a side dish. Store in the refrigerator for up to a week; blanch and freeze for longer storage.
Troubleshooting
Yellow leaves: Usually overwatering or nitrogen deficiency; allow soil to dry slightly and feed with a balanced fertiliser. Pods not filling: High temperatures or insufficient pollination; plant earlier in the season. Powdery mildew: White coating on leaves; improve air circulation and apply organic fungicide. Stunted growth: Poor soil or root damage; ensure proper drainage and avoid transplanting. Seeds not germinating: Soil too cold or too wet; wait for soil temperature above 7°C.