How to Grow Kong Green

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Kong Green

Capsicum annuum 'Kong Green'

vegetable

Kong Green is a sweet bell pepper variety known for its large, blocky fruits and vibrant green color at maturity. It produces exceptionally productive plants with thick-walled peppers ideal for fresh eating, stuffing, and cooking. The variety is prized for its early maturity and consistent yields in home and commercial gardens.

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Example Kong Green timeline · Pittsburgh, PA (Zone 6b)

Plant Kong Green
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Kong Green
Around Jun 16

≈ 60 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Kong Green dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum (8+ hours preferred for best production)

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Water: Consistent moisture; 1-1.5 inches per week. Water deeply at soil level to avoid wetting foliage. Allow soil to dry slightly between waterings to prevent root rot.

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Spacing: 18-24 inches

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Days to maturity: 60-75 days from transplant

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Planting depth: 0.25 inches for seeds; transplants at soil line

Soil

Type: Well-draining loamy soil rich in organic matter

pH: 6.0-6.8

Amendments:

Compost Peat moss or coconut coir Perlite or coarse sand for drainage Balanced fertilizer (10-10-10 NPK)

Growing Zones

Find your zone →

Thrives in zones 5-10; can be grown in cooler zones with season extension

2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b

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Growth Stages

Seedling

3-4 weeks

Tiny plants with 2-4 true leaves emerge 7-14 days after germination. Plants are delicate with thin stems and cotyledons.

Maintain warm soil (75-85°F) and high humidity. Provide 14-16 hours of grow light daily. Keep soil consistently moist but not waterlogged. Thin seedlings if overcrowded.

Vegetative Growth

4-6 weeks

Plants develop bushy foliage with multiple branching stems. Leaves are deep green and elongated. No flowers yet present.

Harden off seedlings before transplanting outdoors. Plant after last frost when soil reaches 60°F. Water consistently. Apply balanced fertilizer every 3-4 weeks. Stake or cage plants for support.

Flowering

3-4 weeks

Plants produce small white or pale purple flowers in clusters along branch nodes. Flowers develop before the previous fruit is harvested.

Maintain consistent watering and warmth (70-85°F optimal). Switch to higher phosphorus fertilizer (5-10-10) to encourage flower production. Remove any early bud stress by pinching first flowers if desired for larger ultimate fruit.

Fruiting

3-4 weeks per fruit cycle

Flowers develop into small green fruits that enlarge rapidly. Fruits are blocky, thick-walled, and square-shaped, reaching 3-4 inches across.

Maintain consistent watering, especially during fruit development. Mulch around base to retain moisture and regulate soil temperature. Support heavy fruit clusters with stakes or cages. Fertilize every 2-3 weeks with balanced formula.

Harvest Maturity

Continues until frost or end of season

Peppers reach full size (3-4 inches), remain green and firm, with thick walls suitable for cutting. Multiple fruit cycles occur throughout season.

Harvest when peppers reach desired size. Remove fruit carefully to avoid breaking branches. Continue watering and fertilizing for continuous production through season. Remove any diseased foliage.

Companion Planting

Plan your garden →

Plant with:

Basil Onions Garlic Carrots Marigolds Borage Parsley

Avoid planting near:

Fennel Kohlrabi Brassicas (cabbage, broccoli, cauliflower) Apricots Other Capsicum that cross-pollinate if seed saving intended

Common Pests

Spray with strong water jet; use insecticidal soap or neem oil; release ladybugs for biological control
Increase humidity with misting; spray with neem oil or sulfur; remove heavily infested leaves
Use blue sticky traps; apply spinosad or insecticidal soap; remove nearby weeds as alternate hosts
Use row covers on young plants; apply kaolin clay spray; encourage natural predators
Remove infested fruits immediately; practice crop rotation; use pheromone traps
Improve air circulation; spray with sulfur or potassium bicarbonate; remove infected leaves

Uses

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Fresh eating and cooking

Culinary

Kong Green peppers are excellent sliced raw for salads and crudités, or cooked in stir-fries, fajitas, and roasted vegetable dishes. The thick walls make them ideal for stuffing. [source]

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Preservation and storage

Culinary

These peppers can be frozen, dried, pickled, or roasted and preserved in oil for long-term storage, allowing year-round use of your harvest. [source]

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Vitamin C and antioxidants

Medicinal

Green bell peppers contain significant vitamin C, capsaicinoids, and phenolic compounds that support immune function and have anti-inflammatory properties. They provide 89-95 mg of vitamin C per 100g fresh weight. [source]

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Natural dyes

Household

Pepper plants and fruits can be used to create natural fabric dyes, with the green pigment being particularly stable and useful in textile applications. [source]

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Pollinator support

Wildlife

Pepper flowers attract bees, butterflies, and other pollinators essential for fruit set. Growing Kong Green supports beneficial insect populations in gardens. [source]

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

Harvest Tips

Kong Green peppers are mature when they reach 3-4 inches long and feel firm. Harvest at green stage for tender peppers, or allow to ripen to red (takes additional 3-4 weeks) for sweeter flavor and higher vitamin C content. Cut peppers with pruning shears rather than pulling to avoid plant damage. Harvest regularly to encourage continuous production. First fruits often appear 60-75 days after transplant.

Fun Facts

🌱 Kong Green was specifically bred to produce exceptionally early-maturing fruit with high yields, making it one of the most productive green pepper varieties for home gardeners.
🌱 Green peppers are actually immature red peppers; Kong Green peppers harvested at green stage contain 50% less vitamin C than if allowed to fully ripen to red, but offer a more vegetal flavor preferred in many cuisines.
🌱 A single Kong Green plant can produce 25-40+ peppers per season in optimal conditions, making it an exceptionally prolific variety for small garden spaces.

Gardening Terms

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

Full Sun Germination Mulch pH Transplant True Leaves

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