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How to Grow It: Peas

Updated May 19, 2020
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Rhoda Burrows

Professor & SDSU Extension Horticulture Specialist

Description

A lush, green cluster of garden peas with several pods developed.
Figure 1. Garden peas growing in a garden in July.

General Description: The most common type in American gardens is the shelling pea, also called the “garden pea” or “English pea.” Tender, sweet peas are removed from thin, tough pods before eating. Edible pod peas include the flat-podded snow peas, which may have a tough string, and sugar snap peas, which usually do not.

Types: Different plant types include tall vines, up to five feet, which need to be supported as they climb; these varieties bear over a longer period. The more common “bush” types are only two-to-three feet tall, and will flower and then set their crops all at once, for a shorter harvest period.

Fun Fact: Peas are an ancient food; they have even been found in the Egyptian tombs.

Planting

For an early harvest, plant peas in April and May for harvest in July, August and September. For a later harvest, plant peas in June and July for harvest in September and October.
Figure 2. Timeline for planting and harvesting peas.

Sowing: Direct sow the seed into moist soil. Place the seeds in a row 1 to 1 ½ inches deep and 1 inch apart. Alternatively, two rows may be planted 2 or 3 inches apart. Cover gently with soil. Handle the seed carefully; pea seeds that are cracked are unlikely to germinate, especially in the cool soil of early spring.

Timeline: Plant as soon as the ground can be worked. Young pea plants can withstand light frosts and will grow at any temperature above 40°F. Days to harvest range from 50 to 75 days, depending on variety (Figure 2).

Plant Care

Fertilizing

Peas generally need little or no fertilizer when grown in soil. If grown in a container, a light dose of a fertilizer for fruiting plants, such as 5-10-10 may be applied early in their growth.

Trellising

Trellises, which can be as simple as a few stick placed into the ground along the row, or much more elaborate, help keep the plants upright and avoid diseases.

Watering

Moisten the soil thoroughly at planting, and soak the soil thoroughly when watering, letting the top ½ inch dry between waterings or rain. Depending on your soil, watering once a week may be adequate.

Weeding

Frequent, shallow cultivation will kill weeds before they become a problem. Or mulch heavily with straw or grass clippings.

 

Pests and Diseases

Two photos of common pea issues. The first is labeled "A" and shows white, powdery residue on pea leaves due to powdery mildew. The second is labeled "B" and shows numerous, small, lime-green pea aphids on a pea stem.
Figure 3. (A) Powdery Mildew. Courtesy: Long Island Horticultural Research and Extension Center, Conell University. (B) Pea aphids.

    Major Diseases

    • Powdery Mildew: Disease is common in hot weather. Leaves and pods can become covered in a whitish mold (Figure 3-A).
    • Root Rotting Pathogens: The plants begin to brown and die from the soil up, and eventually collapse. Caused by cold wet weather followed by hot dry conditions.

    Major Pests

    • Cutworms: Cutworms can sever plants off near the soil due to their feeding.
    • Aphids: Aphids are small insects that remove plant sap and often spread disease in the process (Figure 3-B). Can be found on the undersides of the leaves. The pods are rarely damaged.

    Harvest and Storage

    Harvest: Optimum pea harvest occurs as soon as the peas have achieved their full size, slightly larger than the dry seed you planted. Over-mature peas have a starchy flavor, less sweetness or even bitterness, thick, tough skins, and a firm or hard interior.

    Average Yield: 3 pounds per 10-foot row.

    Storage: Pick the peas and either shell immediately, then cool, or cool immediately for shelling later. Store peas in a cool, humid place with temperatures ranging from 32° to 40°F.

    Preparation

    Cooking Tips: Sugar snap peas are commonly used in stir-frying, steaming and sautéing, or even fresh in salads. Peas are easy to freeze. For more details on preparing and preserving peas, see the Pick it! Try it! Like it! Preserve it! Peas page.

    Nutrition Facts: Fat and cholesterol free, source of vitamin C and K, low calorie and good source of fiber.

    Related Topics

    Vegetable