How to Grow White Dwarf Bean
Wikimedia Commons
White Dwarf Bean
Phaseolus vulgaris
vegetableWeisser Zwerg is a German heirloom bush bean variety known for its small, white, kidney-shaped beans and compact growth habit. The plants are determinate and produce abundant yields of tender green pods followed by mature dry beans suitable for storage and cooking.
When should you plant White Dwarf Bean in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example White Dwarf Bean timeline · Pittsburgh, PA (Zone 6b)
-
Plant White Dwarf Bean
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest White Dwarf Bean
Around Jun 6≈ 50 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact White Dwarf Bean dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-9; can be grown in zone 3 with warm soil and protection
Sign up free to see if White Dwarf Bean grows in your zone — and get a personalized planting timeline.
Get my White Dwarf Bean timeline →Growth Stages
Seedling
14-21 daysSeeds germinate in 7-10 days, emerging with two cotyledons. First true leaves appear within 10-14 days. Plants are small and delicate.
Keep soil consistently moist but not waterlogged. Protect from cold temperatures (soil should be at least 60°F). Thin seedlings carefully or plant at final spacing from start.
Vegetative
20-25 daysCompact bush form develops with multiple stems and pinnate leaflets. Plants remain bushy and determinate, reaching 12-16 inches tall. Leaves are bright green and healthy.
Mulch around plants to retain moisture and suppress weeds. Avoid excessive nitrogen fertilizer, which promotes foliage over flowering. Ensure consistent watering.
Flowering
10-14 daysWhite or pale pink flowers appear in clusters along stems and leaf axils. Flowers are self-pollinating and set pods readily in warm weather.
Continue regular watering; critical period for pod development. Avoid overhead watering. Maintain consistent moisture to prevent flower/pod drop. Temperature should ideally be 70-80°F.
Pod Development
15-20 daysSmall green pods form and elongate rapidly, reaching 4-5 inches. Pods are tender, crisp, and suitable for harvest as snap beans. Beans inside pods begin to swell.
Begin harvesting snap beans when young and tender (2-3 inches) for best flavor. Pick regularly to encourage continued production. Reduce watering slightly once heavy production begins.
Maturation & Harvest
25-30 daysPods yellow and dry on the plant; bean seeds inside harden and turn white. Plants produce fewer new flowers as energy redirects to seed maturation.
Allow pods to fully mature and dry on the plant for storage beans. Harvest when pods are completely brown and papery, beans rattle inside. Thresh and dry further indoors if needed before storage.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Hand-pick beetles and egg clusters; use neem oil or insecticidal soap; plant trap crops; encourage natural predators like ladybugs
-
Spray with water to dislodge; use insecticidal soap or neem oil; attract beneficial insects like ladybugs and lacewings
-
Increase humidity through regular misting; use neem oil or sulfur spray; remove heavily infested leaves
-
Avoid overhead watering; ensure good air circulation; remove infected leaves; apply sulfur dust if needed; use resistant varieties
-
Plant disease-free seeds; avoid overhead watering; remove infected plants; rotate crops; use fungicide if severe
Uses
Fresh snap beans
CulinaryYoung tender pods are excellent steamed, sautéed, roasted, or blanched for salads. They are delicate and cook quickly, retaining a pleasant crunch and mild bean flavor. [source]
Dry storage beans
CulinaryMature white beans are excellent for soups, stews, baked beans, and traditional German cuisine. They cook relatively quickly and have a mild, creamy texture. [source]
Nitrogen fixation
HouseholdLike all legumes, Weisser Zwerg enriches soil by fixing atmospheric nitrogen through root nodule bacteria (Rhizobium), reducing the need for nitrogen fertilizer and improving soil fertility for subsequent crops. [source]
Succession planting
CulinaryPlant every 2-3 weeks for continuous harvest throughout the growing season. Ideal for fresh consumption in summer and storage as dry beans in fall. [source]
Pollinator support
WildlifeThe delicate white flowers attract bees and other pollinators, supporting garden biodiversity and contributing to overall ecosystem health. [source]
Harvest Tips
For snap beans: harvest when pods are 2-3 inches long, tender, and crisp, typically 50-60 days after planting. Pick regularly to encourage continued flowering. For dry beans: allow pods to fully mature and brown on the plant (80-90 days), then harvest, dry indoors, and thresh. Best harvested in early morning when pods are crisp and full of moisture.
Fun Facts
- 🌱 Weisser Zwerg means 'White Dwarf' in German, referring to the compact bush form and white seed color. This heirloom variety has been cultivated in Germany and Central Europe for generations.
- 🌱 Beans are one of the oldest domesticated crops, with archaeological evidence of bean cultivation dating back 7,000 years to Mesoamerica, later spreading worldwide.
- 🌱 A single bean plant can produce 100+ pods in a season, making it one of the most productive garden vegetables relative to space required.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized White Dwarf Bean planting timeline
Tell us your zip code and we'll calculate exactly when to start White Dwarf Bean seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my White Dwarf Bean timeline →