How to Grow Edamame Midori Giant

Edamame Midori Giant

Glycine max

vegetable

Edamame Midori Giant is a large-podded soybean variety prized for its sweet, buttery beans and impressive yield. This Japanese cultivar produces abundant clusters of plump pods containing 3-4 large, tender beans perfect for harvesting at the immature green stage. The vigorous plants reach 24-30 inches tall and are ideal for home gardeners seeking premium edamame quality.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum
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Water: Moderate, consistent moisture; provide 1-1.5 inches per week. Keep soil evenly moist especially during flowering and pod development. Avoid waterlogging.
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Spacing: 4 inches
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Days to maturity: 75-95 days
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Planting depth: 1-1.5 inches

Soil

Type: Well-draining loamy soil with good organic matter
pH: 6.0-7.0
Amendments:
Compost or aged manure Balanced fertilizer (10-10-10) Lime if pH is below 6.0

Growing Zones

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Zones 5-9; requires warm soil and a 70-100 day frost-free period

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Growth Stages

1

Seedling

10-14 days

Cotyledons emerge, followed by the first true leaves. Plants are delicate and vulnerable.

Ensure consistent moisture and warmth. Thin seedlings to proper spacing. Protect from slugs and cutworms. Do not plant until soil is at least 60°F.

2

Vegetative Growth

3-4 weeks

Rapid stem and leaf development. Plants grow bushy with compound trifoliate leaves. Root system deepens.

Maintain consistent watering and weed regularly. Apply mulch to retain moisture and suppress weeds. Monitor for early pest damage. Begin side-dressing with balanced fertilizer at 3-4 weeks.

3

Flowering

2-3 weeks

Small white, pink, or purple flowers appear in leaf axils and terminal clusters. Plants continue to grow taller.

Keep soil consistently moist as water stress reduces pod set. Avoid high-nitrogen fertilizers to prevent excessive foliage. Monitor for spider mites and Japanese beetles. Pollination is aided by wind and insects.

4

Pod Development

3-4 weeks

Flowers drop and small green pods form and rapidly enlarge. Pods fill with developing beans. Plant energy focuses on pod maturation.

Maintain steady moisture to prevent pod abortion. Continue weeding. Watch for pod-boring insects. The large pods of this variety become distinctly visible and plump.

5

Harvest Readiness

7-14 days (harvest window)

Pods reach full size, remaining bright green and tender. Beans inside are large and fully developed but still immature. Pods feel full and firm to the touch.

Harvest when pods are bright green, turgid, and beans are just mature inside. Do not wait for pods to yellow or dry. Pick pods regularly to encourage continued production. Harvest is best in early morning.

Common Pests

  • Hand-pick beetles in early morning. Use row covers during peak flight. Apply neem oil or spinosad if damage is severe. Avoid traps near plants as they attract more beetles.

  • Increase humidity and air circulation. Spray with strong water stream to dislodge. Apply neem oil or insecticidal soap. Monitor undersides of leaves.

  • Use row covers early in season. Hand-pick beetles and egg clusters. Remove crop debris in fall. Apply spinosad if population is high.

  • Hand-pick bugs and egg clusters. Use reflective mulches. Plant trap crops (clover). Apply neem oil or insecticidal soap as needed.

  • Use yellow sticky traps. Spray with neem oil or insecticidal soap. Maintain good air circulation. Remove heavily infested leaves.

  • Ensure good air circulation. Avoid overhead watering. Apply sulfur dust or potassium bicarbonate at first sign. Remove infected leaves.

Uses

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Steamed and Salted Snack

Culinary

Boil or steam fresh pods for 5-7 minutes and serve with sea salt. Pop the tender beans directly into your mouth—a protein-rich, nutritious snack that's popular throughout Asia and increasingly in Western cuisine. [source]

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Soups, Salads, and Stir-Fries

Culinary

Shuck beans and add to grain bowls, salads, soups, and stir-fries. Their mild, slightly sweet flavor and buttery texture complement Asian noodle dishes and Mediterranean salads alike. [source]

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Plant-Based Protein and Isoflavones

Medicinal

Edamame is a complete protein source containing all nine essential amino acids, plus bioactive compounds called isoflavones studied for potential benefits to bone health and hormonal balance. [source]

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Nutritious Whole Food

Household

Rich in fiber, iron, magnesium, and B vitamins, edamame supports digestive health, energy metabolism, and overall nutrition when consumed regularly as a fresh or frozen staple. [source]

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Pollinator Attraction

Wildlife

The delicate flowers attract bees, hoverflies, and other pollinators to the garden, supporting beneficial insect populations while improving overall crop 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

Harvest pods when they are bright green, fully enlarged, and beans inside feel plump but before pods turn yellow or dry. Typically ready 75-95 days after planting. Pick pods in the early morning when they are crisp. Snap pods off the stem or cut with scissors. Harvest regularly to encourage continued production. For peak sweetness and tenderness, use edamame within 2-3 days of picking; blanch and freeze for longer storage.

Fun Facts

  • 🌱 Edamame Midori Giant is a Japanese heirloom variety whose name 'Midori' means 'green' in Japanese, reflecting its vibrant color and the preference for harvesting at the tender green stage rather than allowing seeds to mature and dry.
  • 🌱 Unlike most vegetables, edamame beans are a complete protein, containing all nine essential amino acids—making them a nutritionally balanced food on their own and a favorite among vegetarians and vegans.
  • 🌱 As a legume, edamame forms a symbiotic relationship with nitrogen-fixing bacteria in the soil, naturally enriching the soil with nitrogen and reducing the need for synthetic fertilizers in future plantings.

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