Type: Warm Season Annual • Family: Fabaceae (Legume) • Sun: Full sun to part shade • Water: Moderate to high (consistent moisture) • Soil pH: 6.0-7.0 • Hardiness: Tender—grown as annual in Zones 6b/7a
Planting Calendar (Zone 6b/7a)
| Method | Timing | Notes |
|---|---|---|
| Start indoors | Not recommended | Direct sow preferred. |
| Direct sow | May 10 - June 1 | After soil 60°F+. Sow 1.5" deep, 6" apart at base of 6-8' support. Germination 7-14 days. |
| Transplant | N/A | Direct sow only. |
| Days to maturity | 65-80 days | |
| Succession plant | N/A—season-long production |
Expected Yield
- Per plant: 0.5-2 lbs per plant
- Per 10' row: 8-15 lbs per 10' row
- Per season: 10-20 lbs per 10' row
Growing Conditions
- Soil: Well-drained, moderately fertile. More moisture-loving than common beans. 2" compost. Inoculate. Mulch heavily.
- Fertilizer: Light feeder. Inoculant + compost at planting. Avoid excess nitrogen.
- Companions: Corn, squash, sunflowers, cucumbers, nasturtiums
- Avoid: Alliums, beets
- Pests: Slugs (young plants—beer traps), aphids, Mexican bean beetles. Generally more pest-resistant than common beans.
- Diseases: Root rot in waterlogged soil. Generally robust.
Heirloom & Recommended Varieties
'Scarlet Runner'
Brilliant red flowers are hummingbird magnets. 8" flat pods, edible when young. Shelly beans pink and black. Beautiful and productive.
'Sunset Runner'
Warm salmon-pink flowers. Same edible quality as Scarlet. Stunning mixed with red types.
'Painted Lady'
Red and white bicolor flowers dating to the 1600s—one of the oldest named cultivars. Thomas Jefferson grew this variety at Monticello.
'White Dutch Runner'
Pure white flowers. White seeds when dried. Excellent for dry bean production. Mild, buttery flavor.
Cultural History & Domestication
Runner beans (Phaseolus coccineus) originated in the mountains of Mexico and Central America, where they are perennial. They became enormously popular in Britain as a kitchen garden staple. In America, they've always been more popular as ornamentals than food—a missed opportunity, as the young pods are delicious and the shelly beans are among the finest flavored of all beans.
Seed Saving
Runner beans are insect-pollinated and cross readily. Isolation of 500+ feet between varieties, or cage and hand-pollinate. Allow pods to dry fully on vine. Shell and dry. Viability: 3-5 years.
The Loop Farmstead Standard
- Compost: 1-2 inches annually (on-farm production)
- Cover crops: Rye + vetch (fall), buckwheat (summer), daikon (compaction)
- Wood chips: Pathways only (aged 2+ years for beds)
- Fall leaves: Mulch or compost browns
- Blood/bone meal: From farm-slaughtered animals
- Biochar: Charged with compost tea (permanent carbon)
- Wood ash: Light application from wood stove
- Eggshells: Crushed/powdered (slow calcium)
Never used: Synthetic fertilizers, mined minerals, gypsum, peat moss