How to Grow Sungold Lima Bean

Sungold Lima Bean

Phaseolus lunatus

vegetable

Sungold lima bean is a warm-season legume producing golden-yellow, creamy beans in large pods. Known for its sweet flavor and buttery texture, it's a heat-loving variety ideal for summer gardens. These pole beans are nitrogen-fixing plants that enrich soil while producing abundant harvests.

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Example Sungold Lima Bean timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Sungold Lima Bean

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Sungold Lima Bean

    Around Jun 26

    ≈ 70 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Sungold Lima Bean dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum
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Water: Moderate, consistent moisture; water deeply 1-2 inches per week. Reduce watering after flowering to avoid excessive vine growth. Avoid wetting foliage to prevent disease.
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Spacing: 6 inches
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Days to maturity: 70-90 days
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Planting depth: 1-1.5 inches

Soil

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

Growing Zones

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Thrives in zones 5-9; grows in zones 3-10 with proper timing and care

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

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Growth Stages

1

Seedling

2-3 weeks

Cotyledons emerge; bean leaves unfold. Plant is low-growing with minimal vine development.

Keep soil consistently moist but not waterlogged. Protect from strong winds. Ensure full sun exposure.

2

Vegetative Growth

3-4 weeks

Vigorous vine growth with multiple stems and trifoliate leaves. Plant climbs trellising or support structures.

Guide vines onto trellis or pole. Begin weekly deep watering. Do not over-fertilize with nitrogen or you'll get excessive foliage at expense of flowers.

3

Flowering

2-3 weeks

Small white or pale yellow flowers appear in clusters along the vines. Flower clusters develop into elongated pods.

Maintain consistent soil moisture during this critical stage. Ensure adequate potassium and phosphorus. Light hand-pollination with a brush can boost pod set in cool weather.

4

Pod Development

2-3 weeks

Pods elongate and fill out, reaching 4-5 inches long. Pods initially green, then begin yellowing as beans mature inside.

Continue regular watering. Stop watering slightly once pods are well-developed to concentrate flavors. Watch for pests during this stage.

5

Harvest Maturity

Variable; harvest window is 2-4 weeks

Pods dry and turn brown-golden, beans inside are fully mature and plump. Pods may split slightly when fully ripe.

Harvest regularly for fresh beans, or allow to fully dry for shelling. Stop overhead watering to aid drying.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Fennel garlic onions other pole beans (different varieties for seed purity)

Common Pests

  • Row covers on young plants; handpick beetles; insecticidal soap; neem oil; encourage beneficial insects

  • Handpick larvae and adults; apply spinosad or neem oil; use reflective mulches; plant early to avoid peak populations

  • Spray leaves with water to dislodge; use neem oil or insecticidal soap; maintain humidity; avoid excessive nitrogen

  • Remove infested pods promptly; harvest early before borers mature; use pheromone traps; store dried beans in sealed containers

  • Strong water spray; insecticidal soap; neem oil; reflective mulches; attract parasitic wasps

Uses

🍳

Fresh and Dried Cooking

Culinary

Sungold lima beans are prized for their sweet, buttery flavor and creamy texture, ideal for succotash, soups, stews, and side dishes. Both fresh shell beans and dried mature beans are culinary staples, with the golden color adding visual appeal to dishes. [source]

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Freezing and Preservation

Culinary

Fresh-picked Sungold beans freeze exceptionally well, retaining flavor and texture for months. They're perfect for blanch-and-freeze preservation, making them available year-round. [source]

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Nutritional and Health Benefits

Medicinal

Lima beans are rich in plant-based protein, fiber, manganese, and folate. They provide polyphenols with antioxidant properties and support digestive health and blood sugar management. [source]

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Nitrogen Fixation and Soil Enrichment

Household

As a legume, Sungold lima beans form symbiotic relationships with nitrogen-fixing bacteria, naturally enriching the soil. Leaving root systems in place after harvest improves soil fertility for subsequent crops. [source]

🦋

Pollinator Support

Wildlife

The flowers of lima bean plants attract bees and other pollinators, supporting local ecosystems while enhancing bean production through improved pollination. [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 fresh shell beans, harvest pods when they're plump and full but still green (around 70-80 days). Snap pods off the vine by hand or cut with scissors. For dried beans, wait until pods turn brown and dry, then harvest entire vines and hang upside down to finish drying. Shell when completely dry. Fresh beans can be stored in the refrigerator for up to 5 days; dried beans keep for months in cool, dry storage.

Fun Facts

  • 🌱 Sungold lima beans are sometimes called 'butter beans' because of their creamy, buttery texture when cooked—a characteristic that distinguishes them from white lima varieties.
  • 🌱 Lima beans contain a small amount of naturally occurring cyanogenic glycosides that are completely neutralized by cooking, making them perfectly safe to eat when prepared properly.
  • 🌱 The golden-yellow color of Sungold varieties is a relatively modern development; traditional lima beans are primarily white or speckled, making this cultivar a visually distinctive addition to the garden.

Gardening Terms

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

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