Snap Peas

Vegetable

Pisum sativum var. macrocarpon

Snap peas are edible-pod peas with thick, crunchy, sweet pods eaten whole - no shelling required. Among the most popular crops for children and beginning gardeners, they produce abundantly over a short cool season and are exceptionally good eaten fresh straight from the vine.

Native Range

Origin: Developed by Calvin Lamborn of Rogers Brothers Seed Company in Twin Falls, Idaho, in the 1970s; released as Sugar Snap in 1979.
Native Habitat: Bred from cultivated Pisum sativum; no wild population exists.
Current Distribution: Cultivated worldwide as a garden and commercial crop; widely grown in North America, Europe, and Asia.

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Growing Conditions

Sunlight

Full Sun

Water Needs

Moderate

Soil

Well-draining loam; pH 6.0 - 7.5

Spacing

2 - 4 inches

Days to Maturity

60 - 70 days from direct sow

Growing Zones

Thrives in USDA Zones 3 - 10

Companion Planting

Good Companions

Keep Away From

When to Plant

Direct Sow
4 - 6 weeks before last frost; as soon as soil is workable
Harvest
60 - 70 days; harvest when pods are plump, round, and bright green; eat immediately for peak sweetness

Phenology (Natural Timing Cues)

Direct Sow

Snap peas are one of the first crops sown each season. The window between perfect and overripe can be a matter of days - pods that were sweet yesterday become starchy tomorrow. Sow as soon as soil can be worked; forsythia bloom is the classic cue. Plants actively need cool temperatures; once daytime highs consistently exceed 80°F, pods stop developing and plants yellow out. Harvest daily once pods begin filling to stay ahead of the peak.

Forsythia is beginning to bloom.
Soil crumbles rather than smearing or clumping when forked.
Soil temperature is 40 - 65°F.
Last frost is 4 - 6 weeks away.

Start Dates (Your Location)

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Typical Last Frost

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Organic Growing Tips

Support from the start - even dwarf snap peas benefit from netting or twiggy pea sticks.
Harvest daily once pods fill out; even a few days overripe converts sweet snap peas to starchy dry peas.
Leave a few plants to dry completely on the vine for seed saving.
Cut plants at ground level after harvest rather than pulling to leave nitrogen-fixing roots in the soil.

Common Pests

Pea Moth
Aphids
Powdery Mildew
Pea Weevil

All pest management in Garden uses safe, organic, non-toxic methods only. No synthetic pesticides, ever.

Taxonomy

Kingdom: Plantae
Family: Legume family (Fabaceae)
Genus: Pisum
Species: sativum

Natural History

The snap pea is a remarkably modern creation. The standard shelling pea and the snow pea were both cultivated for centuries. The snap pea - combining the sweet, plump seed of a shelling pea with the thick, edible, stringless pod of an improved snow pea - was specifically bred by Calvin Lamborn, working for Rogers Brothers Seed Company in Twin Falls, Idaho, in the 1960s and 1970s. Lamborn crossed a podded variety with shelling pea lines, selecting across multiple generations for the characteristic thick, round, fully edible pod. The Sugar Snap variety was released commercially in 1979 and won the All-America Selections award that year, becoming one of the most successful new vegetable introductions of the 20th century. The Sugar Snap's success demonstrated that there was a substantial market for vegetables with exceptionally short preparation time and high raw-eating quality.

Morphology (Plant Structure & Identification)

Root System
Fibrous, shallow roots with nitrogen-fixing nodules. Consistent soil moisture is more important than depth.
Stem
Slender, hollow, climbing vines that grip supports with curling tendrils; dwarf varieties stay 18 - 24 inches, tall varieties reach 5 - 6 feet.
Leaves
Compound with paired leaflets and curling tendrils; bright green; healthy plants have a fresh, waxy appearance.
Flowers
White, pea-shaped, self-pollinating; held at leaf nodes in pairs; each flower quickly develops into a pod.
Fruit
Round, plump, thick-walled pods with fully edible walls; sweet and crunchy when harvested at full size before seeds mature.

Known Varieties

Common cultivars worth knowing

Sugar Snap
The original Calvin Lamborn variety that launched the snap pea category; tall vines needing support, very sweet pods with outstanding flavor.
Best for: traditional flavor, trellises, fresh eating
Sugar Ann
Dwarf bush version of Sugar Snap reaching only 24 inches; no staking required; slightly earlier than tall types.
Best for: small gardens, no-trellis growing, beginners
Cascadia
Oregon-bred variety with excellent disease resistance to powdery mildew; semi-dwarf vines; reliable in cool-damp climates.
Best for: disease resistance, cool-damp climates
Super Sugar Snap
Improved Sugar Snap with taller vines and better mildew resistance; maintains the original's superb flavor.
Best for: high yield, improved disease resistance

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