How to Grow Beans and Peas

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Beans and Peas

Phaseolus vulgaris (beans), Pisum sativum (peas)

vegetable

Legumes that fix nitrogen in the soil while producing edible pods and seeds. Beans and peas are warm and cool-season crops respectively, offering versatility in the garden. Both are nutrient-dense and relatively easy to grow for gardeners of all levels.

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Example Beans and Peas timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Beans and Peas

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Beans and Peas

    Around Jun 6

    ≈ 50 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Beans and Peas dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily minimum
💧
Water: Consistent moisture, 1-1.5 inches per week. Avoid overhead watering to reduce disease. Reduce frequency after flowering begins.
📏
Spacing: 4-6 inches apart in rows 18-24 inches apart for beans; 2-3 inches apart in rows 12-18 inches apart for peas inches
📅
Days to maturity: Peas: 50-70 days; Beans: 50-70 days (snap/green), 60-70 days (dry beans)
🌱
Planting depth: 1-1.5 inches deep

Soil

Type: Well-draining loamy soil with moderate fertility
pH: 6.0-7.0
Amendments:
Compost aged manure balanced fertilizer at planting

Growing Zones

Find your zone →

Peas thrive in zones 3-10 (cool season), Beans in zones 3-11 (warm season)

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b

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Growth Stages

1

Germination & Seedling

1-2 weeks

Seeds sprout and develop cotyledons and first true leaves within 7-10 days. Plant appears delicate with minimal foliage.

Keep soil consistently moist but not waterlogged. Ensure adequate light. Thin seedlings if crowded. Support may not be needed yet.

2

Vegetative Growth

2-3 weeks

Plant develops bushy foliage with multiple stems and leaves. For climbing varieties, vines begin to grow vigorously upward.

Install trellises or stakes early for climbing varieties. Monitor for pests. Water consistently at soil level. Avoid nitrogen-heavy fertilizers to prevent excess foliage.

3

Flowering

1-2 weeks

Small white, pink, purple, or yellow flowers appear along the stems. Pods begin to form behind flowers.

Provide consistent water during this critical stage. Do not fertilize; nitrogen can reduce pod set. Hand-pollinate if bee activity is low.

4

Pod Development & Maturation

2-4 weeks

Pods elongate and fill with seeds. For snap/green beans and peas, pods are tender and full-sized but seeds still soft.

Water regularly and mulch to retain moisture. Begin harvesting snap varieties when pods snap easily. Leave dry beans on plant until pods brown.

5

Harvest & Maturity

Ongoing (2-3 weeks for snap), then final harvest

Pods reach full size and color. Green varieties are ready when crisp and tender; dry beans are ready when pods brown and rattle.

Pick regularly to encourage continued production on snap varieties. For dry beans, allow pods to fully mature on plant, then harvest and dry.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Fennel garlic onion leek brassicas (for certain bean varieties) sunflower

Common Pests

  • Hand-pick beetles and egg clusters; use row covers; apply neem oil or spinosad spray; rotate crops annually

  • Spray with water to dislodge; use insecticidal soap; introduce ladybugs; apply neem oil

  • Increase humidity by misting; spray with miticide or sulfur dust; remove heavily infested leaves

  • and (fungal)

    Ensure good air circulation; avoid overhead watering; remove affected leaves; apply fungicide if severe

  • Use cardboard collars around seedlings; apply diatomaceous earth; remove plant debris; cultivate soil before planting

Uses

🍳

Fresh eating & cooking

Culinary

Snap beans and sugar snap peas are delicious eaten raw in salads or lightly steamed as a side dish. Green beans are a versatile vegetable in stir-fries, casseroles, and soups. [source]

🍳

Dried legumes & storage

Culinary

Dry beans store for years and are essential for soups, curries, and refried beans. High in protein and fiber, they are a nutritional staple. [source]

💊

Nutritional & health benefits

Medicinal

Beans and peas are rich in folate, fiber, and plant-based protein. They support digestive health and have been used traditionally to manage blood sugar. [source]

🏠

Soil improvement & nitrogen fixation

Household

Legumes form symbiotic relationships with nitrogen-fixing bacteria in root nodules, enriching soil for subsequent crops. Excellent for crop rotation and sustainable gardening. [source]

🦋

Pollinator & beneficial insect support

Wildlife

Bean and pea flowers attract bees, butterflies, and other pollinators. The plants also provide habitat for beneficial insects. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

For snap/green beans and peas: Pick when pods are bright green, tender, and snap easily (typically 3-5 days after flowering). Harvest every 2-3 days to encourage production. For dry beans: Allow pods to fully brown on plant, then harvest. Shell and dry beans completely (2-3 weeks) before storage. Do not harvest wet plants; wait until morning dew dries to reduce disease spread.

Fun Facts

  • 🌱 Beans and peas are part of the legume family (Fabaceae) and contain nodules on their roots housing nitrogen-fixing bacteria. This allows them to convert atmospheric nitrogen into usable forms, enriching soil naturally and reducing the need for synthetic fertilizers.
  • 🌱 Snap peas were developed in the 1950s as a hybrid, combining the edible pod of snow peas with the full seed development of garden peas. They revolutionized home gardening by offering a sweet, crunchy snack straight from the garden.
  • 🌱 Some bean and pea varieties have been cultivated for over 7,000 years, with evidence of domestication dating back to ancient Mesopotamia and the Andean region of South America.

Gardening Terms

New to gardening? Learn about terms used in this guide:

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