How to Grow Haricot Vert
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Haricot Vert
Phaseolus vulgaris
vegetableHaricot vert, also known as French green bean, is a slender, tender variety of common bean prized for its delicate flavor and fine texture. These beans are typically harvested young and immature, producing pods that are thinner and more refined than standard green beans. They are a favorite in French cuisine and gourmet cooking.
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Example Haricot Vert timeline · Pittsburgh, PA (Zone 6b)
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Plant Haricot Vert
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Haricot Vert
Around Jun 6≈ 50 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Haricot Vert dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 5-9 are ideal; can be grown as cool-season or warm-season crop depending on location
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Get my Haricot Vert timeline →Growth Stages
Seedling
7-10 daysCotyledons emerge, followed by first true leaves. Plants are small and delicate.
Keep soil consistently moist. Provide full sun once sprouted. Thin seedlings if direct sown to proper spacing.
Vegetative Growth
20-25 daysPlant develops compound leaves and grows upward. Stems become more robust and woody. No flowers yet.
Water regularly and deeply. Provide support structure (trellis, stakes, or cage) early if using a bush variety. Avoid excessive nitrogen fertilizer which promotes foliage over pods.
Flowering
10-15 daysSmall white, pink, or purple flowers appear in clusters along the stems. Flowers are followed by tiny developing pods.
Continue consistent watering, especially important during this stage. Do not over-fertilize. Ensure adequate light.
Pod Development
15-20 daysYoung pods form and begin elongating. Pods are thin, straight, and bright green. This is the critical stage for harvest-quality beans.
Monitor closely for pest damage. Begin harvesting immature pods for haricot vert quality. Support plants as needed.
Maturity & Harvest
10-15 days (harvest window)Pods reach full tender size (4-6 inches) before seeds bulge inside. Quality declines if harvested too late.
Harvest frequently (every 2-3 days) to encourage continued production. Handle plants gently to avoid damaging remaining flowers and developing pods.
Common Pests
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Hand-pick beetles and egg clusters daily; use floating row covers on young plants; apply neem oil or insecticidal soap if infestation is severe
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Increase humidity with regular misting; spray with strong water spray to dislodge; use miticide if severe; ensure adequate air circulation
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Monitor regularly; spray with water to dislodge; use insecticidal soap or neem oil; attract natural predators with flowering plants
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Improve air circulation; avoid overhead watering; apply sulfur dust or baking soda spray at first sign; remove affected leaves
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Ensure good air circulation; avoid overhead watering; remove infected leaves; avoid handling plants when wet; apply sulfur fungicide if needed
Uses
Fine dining vegetable
CulinaryHaricot vert is prized in French and gourmet cuisine for its tender texture and delicate flavor. Serve steamed, sautéed with butter, or in elegant side dishes. [source]
Raw salads
CulinaryYoung tender pods can be lightly blanched and chilled for fresh summer salads, or enjoyed raw when very young. Pairs well with vinaigrettes and fresh herbs. [source]
Quick cooking vegetable
CulinaryDue to their thin pods, haricot vert cooks rapidly in just 3-5 minutes, making them ideal for weeknight meals. Retains bright color and tender-crisp texture when cooked properly. [source]
Nitrogen fixation
WildlifeLike all legumes, haricot vert fixes nitrogen in the soil through symbiotic bacteria, improving soil fertility for future crops and reducing nitrogen fertilizer needs. [source]
Home preservation
HouseholdHaricot vert can be blanched and frozen for long-term storage, canned for preservation, or dried for dried bean soups and stews. [source]
Harvest Tips
Harvest haricot vert when pods are tender, slender, and about 4-6 inches long, before seeds become prominent inside the pod. Pick frequently (every 2-3 days) to encourage continuous production. Harvest in the morning when pods are crisp. Handle gently to avoid damaging remaining flowers. Young beans will be most tender and best quality. Mature pods become tougher and less desirable.
Fun Facts
- 🌱 Haricot vert translates to 'green bean' in French and represents a refined culinary tradition that emphasizes tender, young vegetables harvested at their peak delicacy.
- 🌱 These beans are determinate (bush) or indeterminate (pole) varieties, with pole varieties often producing more prolifically over a longer season due to continuous flowering.
- 🌱 Fresh haricot vert have a shelf life of only 3-5 days in the refrigerator, making homegrown varieties particularly valuable since they can be harvested and cooked within hours.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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