Guide
UPDATED:
February 13, 2025

How to Grow and Care for Peas

By
Lisa Collins
A beautiful image of peas

Peas are a delightful addition to any garden, known for their quick growth and minimal care requirements. With varieties like sweet peas, snow peas, and snap peas, they offer diverse culinary uses. Peas thrive in cool weather and need early spring planting. While generally easy to grow, they do require well-draining soil and support structures for optimal growth.

  • Common Names: Sweet peas, Snow peas, Snap peas
  • Scientific Name: Pisum sativum
  • Plant Type: Annual, Cool Season Vegetable
  • Plant Height: 1 ft. 0 in. - 1 ft. 6 in.
  • Growing Difficulty: Medium
  • Growing Time: 60 to 70 days
  • Bloom Time: Spring, Fall
  • Temperature: Prefers cool conditions, stops growing above 85°F
  • Hardiness Zone: 2a-11b (Find your hardiness zone here)
  • Sunlight: Full Sun, Partial Shade
  • Soil pH: Neutral (6.0-8.0)
  • Watering Frequency: Keep the soil moist but not wet
  • Plant Spacing: Seeds should be planted 1 inch deep and 2 to 3 inches apart

Different Methods to Grow Peas

Direct Seeding

This method involves planting pea seeds directly into the ground. It is the most straightforward method and is recommended because peas do not like their roots disturbed.

  • Pros: Simple and straightforward; no need for additional materials.
  • Cons: Seeds may wash out of the soil; requires careful soil preparation.

Using Raised Garden Beds

In areas where spring is long and wet, planting seeds in raised garden beds is recommended to ensure better drainage and soil conditions.

  • Pros: Better drainage; ideal for wet spring conditions.
  • Cons: Requires construction of raised beds; more initial effort and materials needed.

Starting Seeds in Biodegradable Pots

This method involves starting seeds in biodegradable pots, which can then be transplanted into the garden without disturbing the roots.

  • Pros: Minimizes root disturbance; can start seeds indoors.
  • Cons: Additional cost for pots; requires transplanting effort.

Ideal Soil and Location Requirements

For optimal growth, peas require well-draining, slightly acidic to neutral soil, ideally prepared with aged manure or compost. Choose a sunny location, although peas can tolerate partial shade. Ensure the soil remains moist but not waterlogged.

When to Plant Peas

Peas are best planted in early spring or fall. Sow seeds 4 to 6 weeks before the last spring frost or 6 to 8 weeks before the first fall frost. Plant as soon as the ground can be worked, even if snow falls afterward, to take advantage of cooler weather.

Growing Peas Outdoors

Direct seeding is the best method to grow peas outdoors because it minimizes root disturbance, which peas do not tolerate well. Here’s a step-by-step guide to help you grow peas in your garden:

  1. Select a sunny location. Choose a spot that gets full sun or partial shade and has well-draining soil.
  2. Prepare the soil. In the fall, mix in aged manure or compost to enrich the soil.
  3. Soak seeds. Soak pea seeds in water overnight before planting to speed up germination.
  4. Sow seeds. Plant seeds 1 inch deep and 2 inches apart. Space rows about 7 inches apart.
  5. Install supports. Set up trellises or pea sticks before the plants establish their roots to provide support as they grow.
  6. Water regularly. Keep the soil moist but not waterlogged. Watering should be consistent to avoid pea rot.
  7. Monitor growth. Check the plants regularly for any signs of pests or diseases and take action as needed.
  8. Harvest. Pick peas when they are plump and bright green, usually 60 to 70 days after planting.

Growing Peas Indoors

Growing peas indoors is possible and can be quite successful with the right approach. Here’s a step-by-step guide to help you grow peas indoors:

  1. Choose a large container. Select a container with drainage holes to prevent waterlogging.
  2. Prepare the container. Cover the drainage holes with plastic screening or a coffee filter to keep the soil in place.
  3. Fill with potting mix. Use a high-quality potting mix, filling the container up to 3 inches from the rim. Add fertilizer if needed.
  4. Plant the seeds. Sow pea seeds 1 inch apart and 1 to 2 inches deep. Water them deeply after planting.
  5. Set up a trellis. Install a support structure for the pea vines to climb as they grow.
  6. Ensure adequate sunlight. Place the container in a location that receives at least six hours of full sunlight daily.
  7. Maintain soil moisture. Keep the soil consistently moist but not waterlogged. Water regularly to ensure healthy growth.
  8. Monitor growth. Check the plants regularly for any signs of pests or diseases and take action as needed.
  9. Harvest the peas. Pick peas when they are plump and bright green, usually 60 to 70 days after planting.
According to folklore, St. Patrick's Day is the traditional day for planting peas, believed to bring luck come harvest time.

Caring for Peas

  1. Watering: Peas need consistent moisture but not excessive watering. Aim to water them sparingly, providing no more than 1 inch per week unless the plants show signs of wilting. This helps prevent root rot and other water-related issues.
  2. Weeding: Keep the area around your pea plants free of weeds. Gently remove any intrusive weeds by hand to avoid disturbing the shallow root system of the peas.
  3. Pest Management: Peas can be affected by various pests like aphids and powdery mildew. For aphids, use a water spray to knock them off or apply insecticidal soap. To manage powdery mildew, ensure good air circulation and avoid overhead watering. Regularly inspect your plants and take action at the first sign of trouble.
  4. Harvesting: Harvest peas regularly to encourage more pod production. Pick snow peas when the pods show immature seeds, snap peas when they are plump and glossy, and shell peas before the pods become waxy. Use two hands to pick peas to avoid damaging the plant.
  5. Fertilizing: Peas generally do not require additional fertilization if mulched deeply with biodegradable materials like grass clippings or shredded leaves. If needed, use a balanced fertilizer low in nitrogen to avoid excessive foliage growth at the expense of pod production.

Common Challenges With Peas

Peas are generally considered easy to grow, making them a favorite among both novice and experienced gardeners. They thrive in cool weather and can be one of the first crops planted in the spring. In my experience, peas are quite resilient and can even withstand a bit of snow. They grow quickly and require minimal attention, which is perfect for those who want a bountiful harvest with little effort.

However, growing peas does come with its challenges. One common issue is ensuring the soil is well-draining to prevent seed rot and damping off. Peas also struggle in hot weather, often ceasing growth above 85°F. Pests like aphids and diseases such as powdery mildew and root rot can also pose problems. Regular monitoring and proper care can help mitigate these challenges, ensuring a healthy and productive pea crop.

Safety of Peas for Pets

Peas are generally safe for cats, dogs, and other pets. However, if you suspect your pet has ingested something harmful, contact the ASPCA 24-hour hotline immediately for assistance.

Frequently Asked Questions

How do you know when peas are ready to be picked?

Peas are ready to be picked when the pods are plump and bright green. For snow peas, harvest when the pods are flat and the peas inside are just beginning to form. Regular harvesting encourages more pod production.

Can I use leftover peas to plant next year?

Yes, you can use leftover peas to plant next year. Ensure the seeds are stored in a cool, dry place to maintain their viability. However, using fresh seeds each season is generally recommended for the best germination rates.

Why is a pea not a fruit, but a vegetable?

Peas are considered vegetables because they are harvested and consumed for their seeds and pods. Botanically, they are legumes, which are a type of vegetable. Fruits, on the other hand, develop from the flower's ovary and contain seeds.

How deep should the container be for growing peas?

For growing peas in containers, the container should be at least 8 inches deep, but ideally up to 18 inches. This depth allows for adequate root development and provides enough space for the plants to grow and thrive.

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