Bamako
Phaseolus vulgaris
Wikimedia Commons
Straight, dainty, 4-5" pods on upright, tidy plants. Well-suited to hand harvest because stems stay on, keeping the pod intact. Bush bean.
Harvest
54d
Days to harvest
Sun
Full sun
Zones
2–11
USDA hardiness
Height
12-18 inches
Planting Timeline
Showing dates for Bamako in USDA Zone 7
All Zone 7 bean →Zone Map
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Bamako · Zones 2–11
Growing Details
Zone-by-Zone Planting Calendar
| Zone | Indoor Start | Transplant | Direct Sow | Harvest |
|---|---|---|---|---|
| Zone 1 | — | — | July – August | September – August |
| Zone 2 | — | — | June – August | September – September |
| Zone 11 | — | — | January – March | April – May |
| Zone 12 | — | — | January – March | April – May |
| Zone 13 | — | — | January – March | April – May |
| Zone 3 | — | — | June – July | August – October |
| Zone 4 | — | — | June – July | August – October |
| Zone 5 | — | — | May – June | August – September |
| Zone 6 | — | — | May – June | July – September |
| Zone 7 | — | — | April – June | July – August |
| Zone 8 | — | — | April – May | June – August |
| Zone 9 | — | — | March – April | May – July |
| Zone 10 | — | — | February – April | May – June |
Succession Planting
Direct sow Bamako every 14–18 days from around April 1 through early June in zone 7. At 54 days to harvest, a mid-April sowing comes ready around mid-June, a May 1 sowing around late June — you get a steady pull of beans rather than one overwhelming flush. The UGA Vegetable Garden Calendar specifically calls out making a third planting of snap beans in May, which fits this cadence exactly.
Stop sowing by mid-June. Beans drop their blossoms and set pods poorly once daytime highs are consistently above 90°F, which in Georgia usually arrives in force by mid-July. A late-June sowing will germinate fine and then mostly stall. If you want fall beans, wait until late August — soil temps will still be warm enough to hit the 7–10 day germination window, and the plants will finish before the first frost date.
Complete Growing Guide
Bamako beans are best direct sown into the garden after all danger of frost has passed and soil temperatures have reached at least 60°F, ideally 65°F or warmer. Unlike many bean varieties that benefit from indoor starting, Bamako's compact, upright habit and quick 54-day maturity mean direct sowing works beautifully and avoids transplant shock. Sow seeds about one inch deep and space them four to six inches apart in rows spaced twelve inches apart. The tidy growth habit of Bamako means you can plant them more densely than sprawling varieties without creating disease problems from overcrowding.
Prepare your soil by working in compost or well-rotted manure before planting, as beans appreciate rich, well-draining soil with a pH between 6.0 and 7.0. Bamako performs best in full sun—at least six to eight hours daily—which encourages the sturdy, upright growth this variety is known for and ensures good pod development. Poor light conditions can cause the plants to stretch and lose their characteristically neat appearance.
Water consistently throughout the growing season, providing about one inch of water per week through rainfall or irrigation. Bamako prefers steady moisture rather than feast-or-famine watering patterns, which can cause pod drop or misshapen beans. Feed the plants lightly with balanced fertilizer every two to three weeks once they begin flowering, or use a low-nitrogen formula to avoid excessive leaf growth at the expense of pod production.
One disease to watch for specifically with Bamako is rust, which can appear on the undersides of leaves in humid conditions. The upright architecture of this variety actually helps with air circulation, reducing risk, but monitor plants regularly during warm, wet periods and remove any affected leaves promptly. Bean beetles can also be problematic, so scout plants frequently and hand-pick any yellow egg clusters from leaf undersides.
Bamako's most distinctive trait is that the stems remain attached to the pods after picking, keeping the pods intact rather than snapping them off—an unusual characteristic that makes hand harvesting particularly satisfying and reduces waste. Take advantage of this by harvesting gently when pods reach their ideal four to five inch length, typically around day 54 from sowing.
One thing gardeners often get wrong with Bamako is assuming that because the plants stay compact and tidy, they need minimal space. While the variety doesn't sprawl, it still needs adequate spacing for air circulation and to access water and nutrients effectively. Don't crowd them too densely in hopes of maximizing yield; proper spacing actually produces more reliable harvests. For continuous production, succession plant seeds every two weeks until mid-summer, allowing you to enjoy fresh Bamako beans throughout the season.
Harvesting
Bamako reaches harvest at 54 days from sowing per Johnny's Selected Seeds. Expect 4-5" at peak. As an annual, harvest continues until frost ends the season.
The boat-shaped seed pods are bilaterally symmetrical and can be green, yellow, white, or purple at maturity. There is a wide variety of color and shape choices among cultivars.
Color: Gold/Yellow, Green, Purple/Lavender, White. Type: Legume. Length: > 3 inches. Width: < 1 inch.
Garden value: Edible, Good Dried
Harvest time: Fall, Summer
Storage & Preservation
Bamako beans are best stored fresh in a cool, humid environment between 45–50°F with 85–90% relative humidity; plastic bags with small ventilation holes work well and extend shelf life to 7–10 days. For longer preservation, freezing is straightforward: blanch whole or halved pods for 3 minutes, cool immediately in ice water, drain thoroughly, and freeze in airtight containers for up to eight months. Drying is equally effective—hang pods in a warm, well-ventilated space until brittle, then shell and store seeds in airtight jars away from light. Canning requires pressure processing at 10 pounds of pressure for 20 minutes (pints) or 25 minutes (quarts) to ensure safety. Bamako's relatively short 54-day maturity means successive plantings allow continuous harvest; stagger sowings two weeks apart to maintain supply and reduce preservation urgency all at once.
History & Origin
Bamako is open-pollinated, meaning seed saved from healthy plants will produce true-to-type offspring. Listed in the Johnny's Selected Seeds catalog.
Origin: Tropical America
Advantages
- +Excellent for hand harvesting with stems remaining intact on pods
- +Compact upright growth habit saves garden space and improves air circulation
- +Attractive 4-5 inch straight pods ideal for fresh market or home use
- +Fast maturity at 54 days allows multiple succession plantings per season
- +Easy to grow variety suitable for beginner gardeners
Considerations
- -Bush bean type produces lower total yield compared to pole varieties
- -Tidy compact plants may require consistent moisture during pod development
- -Pods are somewhat delicate and susceptible to handling damage despite stem attachment
Companion Plants
The Three Sisters combination — corn, beans, and squash — holds up with Bamako for straightforward reasons. Corn gives the vines something to climb without you needing to rig a trellis, squash leaves shade the soil and slow moisture loss between waterings, and Bamako's roots fix nitrogen that feeds all three. French marigolds (Tagetes patula) are worth planting at the bed edges; they deter aphids and spider mites, both of which NC State Extension flags as common bean pests. Nasturtiums are useful as a trap crop — aphids pile onto them first, which buys your beans some time and gives you a clear target to pull if the infestation gets bad.
Onions and garlic don't belong anywhere near Bamako. Alliums release sulfur compounds that interfere with the nitrogen-fixing rhizobacteria on bean roots — which undercuts the main agronomic reason to grow a legume in the first place. Fennel is an aggressive allelopath that stunts most vegetables growing within a few feet of it; in our zone 7 Georgia garden, where bed space is already tight in summer, there's no good reason to give it a spot near your beans.
Plant Together
Marigold
Repels Mexican bean beetles, aphids, and nematodes
Corn
Provides natural trellis support for climbing beans in Three Sisters planting
Squash
Ground cover that suppresses weeds and retains soil moisture
Carrot
Loosens soil for bean roots and doesn't compete for nutrients
Cucumber
Compatible growth habits and shared beneficial insects
Nasturtium
Trap crop for aphids and cucumber beetles, attracts beneficial predators
Radish
Quick-growing companion that breaks up soil and deters bean beetles
Rosemary
Repels bean beetles and carrot flies with strong aromatic oils
Keep Apart
Onion
May inhibit bean growth and nitrogen fixation
Garlic
Allelopathic compounds can stunt bean development
Fennel
Inhibits growth of beans through allelopathic root secretions
Nutrition Facts
Per 100g serving. % Daily Value based on 2,000 calorie diet. Source: USDA FoodData Central (FDC #2346400)
Pests & Disease Resistance
Resistance
Anthracnose (High); Halo Blight (High); One or more races of Bean Mosaic Virus (High)
Common Pests
Bean beetles, spider mites, aphids
Diseases
Bean rust, powdery mildew, anthracnose
Troubleshooting Bamako
What you'll see, why it happens, and what to do about it.
Leaf edges and chunks missing, some leaves browning — noticed around week 5-7 of growth
Likely Causes
- Mexican bean beetle (Epilachna varivestis) — larvae skeletonize leaves from the underside; adults chew clean holes
- Bean leaf beetle (Cerotoma trifurcata) — leaves small, round holes scattered across the surface
What to Do
- 1.Flip leaves and look for yellow egg clusters or soft yellow larvae — hand-pick and drop into soapy water
- 2.The UGA Pest Management Handbook lists both beetles as priority targets; spinosad or pyrethrin sprays work if hand-picking isn't keeping up
- 3.Rotate beans out of that bed each season — overwintering adults return to where they fed last year
Orange or rust-colored pustules on the undersides of leaves, sometimes with yellow halos visible from the top
Likely Causes
- Bean rust (Uromyces appendiculatus) — spreads fast in warm, humid conditions, especially after overhead watering
- Planting beans in the same spot for multiple consecutive seasons, which lets spores accumulate in the soil and debris
What to Do
- 1.Strip and trash (don't compost) any affected leaves as soon as you spot pustules — each one sheds live spores
- 2.Switch to drip or soaker-hose irrigation; NC State Extension's IPM guidance points to wet foliage as a primary driver of bean rust spread
- 3.Pull beans out of that bed for at least 2 seasons; NC State's organic gardening section notes that rotating legumes through plots breaks both fungal and insect cycles
Frequently Asked Questions
How long does it take Bamako beans to produce pods?▼
Is Bamako bean a good choice for beginners?▼
Can you grow Bamako beans in containers?▼
What makes Bamako beans special for harvesting?▼
Is Bamako an heirloom bean variety?▼
When should I plant Bamako beans?▼
Growing Guides from Wind River Greens
Where to Buy Seeds
Sources & References
External authority sources used in compiling this guide.
- BreederJohnny's Selected Seeds
- USDAUSDA FoodData Central
See the Methodology page for how this data is sourced, what's AI-assisted, and known limitations.