How to Grow Haricot Bean
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Haricot Bean
Phaseolus vulgaris
vegetableHaricot beans are a versatile legume crop producing small, white, kidney-shaped beans that are staple ingredients in cuisines worldwide. They can be grown as bush or pole varieties and fix nitrogen in the soil naturally. These plants are valued for their nutritious dried beans, which are rich in protein and fiber.
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Example Haricot Bean timeline · Pittsburgh, PA (Zone 6b)
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Plant Haricot Bean
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 Bean
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Haricot Bean dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-9; can be grown in zones 3-10 with proper timing
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Get my Haricot Bean timeline →Growth Stages
Germination
7-14 daysSeeds germinate and produce a small shoot with cotyledons (seed leaves) emerging from soil.
Keep soil consistently moist but not waterlogged. Protect from birds and cutworms. Ensure soil temperature is 60°F or warmer for best germination.
Seedling
2-3 weeksFirst true leaves appear after cotyledons; plant establishes initial root system and begins upward growth.
Thin seedlings if necessary. Apply mulch to retain moisture and regulate soil temperature. Monitor for pests. Begin weekly watering if rainfall is insufficient.
Vegetative Growth
3-4 weeksPlant develops multiple stems and leaves; bush varieties become compact, pole varieties climb supports. Nitrogen fixation begins in nodules on roots.
Provide sturdy trellising for pole varieties. Maintain consistent moisture. Avoid excess nitrogen fertilizer to prevent excessive leafy growth at expense of flowering.
Flowering
2-3 weeksSmall white, pink, or purple flowers appear in clusters along stems. Flowers are self-pollinating.
Reduce nitrogen if present. Maintain steady watering during this critical stage. Avoid overhead watering to prevent fungal issues. Do not disturb flowers or bees.
Pod Development & Maturation
3-4 weeksFlowers fade and long green pods develop, gradually filling with beans inside. Pods transition from green to brown as beans mature internally.
Reduce watering frequency to concentrate nutrients. Stop watering 2-3 weeks before harvest to encourage pod drying. Allow pods to fully mature on plant for dried beans.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick adults and egg clusters; use row covers on young plants; apply neem oil or spinosad if infestation is severe; encourage natural predators.
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Spray with water to dislodge; increase humidity; apply insecticidal soap or horticultural oil; use sulfur dust in hot weather.
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Store dried beans in cool conditions below 50°F; use airtight containers; apply diatomaceous earth to stored beans; freezing seeds for 3 days before storage kills weevils.
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Spray with strong water spray; apply insecticidal soap; introduce ladybugs or lacewings; use neem oil.
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Improve air circulation; avoid overhead watering; apply sulfur dust or potassium bicarbonate spray; remove infected leaves.
Uses
Dried Bean Staple
CulinaryHaricot beans are essential in French cassoulet, Spanish bean stews, and Mexican refried beans. They provide a creamy texture and mild flavor when cooked. [source]
Canned Bean Product
CulinaryCommercially canned white beans are almost exclusively haricot beans, widely available year-round for convenient cooking. [source]
Nutritional & Health Benefits
MedicinalRich in plant-based protein, dietary fiber, and polyphenols with antioxidant properties. Studies show regular consumption may support heart health and blood sugar management. [source]
Soil Amendment
HouseholdLike all legumes, haricot beans fix atmospheric nitrogen through symbiotic bacteria in root nodules, naturally improving soil fertility for subsequent crops. [source]
Pollinator Support
WildlifeThe flowers attract bees and other pollinators, supporting local ecosystems while ensuring good bean set on your plants. [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 dried beans, allow pods to mature fully on the plant until they turn brown and papery (typically 80-90 days). Pods should be dry and rattle when shaken. Harvest after the first frost when pods are completely dry, or when plants begin to decline. Pick entire pods, then shell out beans by hand or with a thresher. Dry beans further indoors in a warm, dry location for 2-3 weeks before long-term storage. Store in airtight containers in cool conditions.
Fun Facts
- 🌱 Haricot beans were domesticated in Mexico over 7,000 years ago and spread globally through Spanish conquistadors in the 16th century, becoming integral to European and Mediterranean cuisines.
- 🌱 The 'three sisters' agricultural technique combines haricot beans with corn and squash; beans climb the corn stalks, squash shades the soil, and beans fix nitrogen that feeds all three plants.
- 🌱 A single haricot bean plant can produce 100-200 pods, with each pod containing 4-8 beans, making them one of the most productive vegetables for dried bean production.
Gardening Terms
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