Scarlet Runner Bean
Scarlet Runner Bean is a heirloom bean variety (Phaseolus coccineus). Harvest begins around day 45-55; seed germinates in 7-14 days. Set plants 6-8 inches apart. Grow in soil pH 6.0-7.0, zones 3-10, full sun (6+ hours). It will crop in a container.

Sowing
Direct sow after soil warms to 60°F and all danger of frost has passed. Plant 1-2 inches deep. Provide sturdy support structure.
Cultivation
- Sun
- Full sun (6+ hours)
- Water
- 1-1.5 inches per week, consistent moisture especially during flowering
- Soil
- Well-drained, fertile soil rich in organic matter
- Soil pH
- 6.0-7.0
- Spacing
- 6-8 inches
- Season
- Warm season annual
Appearance & flavour
- Colour
- Green pods with bright red flowers, speckled purple-black seeds
- Size
- 6-10 inch pods, large lima-sized beans
- Shape
- Flat, broad pods with kidney-shaped beans
- Flavour
- Fresh pods: tender and sweet. Mature beans: rich, nutty, and creamy
In the kitchen
Young pods steamed or sautéed, mature beans in stews, soups, and casseroles. Flowers are edible and colorful in salads.
Pests, disease & resistance
- Pests
- Mexican bean beetle, aphids, spider mites
- Diseases
- Bacterial blight, anthracnose, root rot in poorly drained soils
- Resistance
- Generally disease resistant, some tolerance to cool, wet conditions
Planting calendar by USDA zone
| Zone | Start indoors | Transplant | Direct sow | Harvest |
|---|---|---|---|---|
| 1 | — | — | July – August | September – August |
| 2 | — | — | June – August | September |
| 3 | — | — | June – July | August – October |
| 4 | — | — | June – July | August – September |
| 5 | — | — | May – June | August – September |
| 6 | — | — | May – June | July – September |
| 7 | — | — | April – June | July – August |
| 8 | — | — | April – May | June – August |
| 9 | — | — | March – April | May – July |
| 10 | — | — | February – April | May – June |
| 11 | — | — | January – March | April – May |
| 12 | — | — | January – March | April – May |
| 13 | — | — | January – March | April – May |
Companion planting
8 beneficial pairings indexed for this variety, 3 to avoid.
Avoid
Nutrition (per 100 g)
- Protein (g)
- 1.97
- Fat (g)
- 0.275
- Carbohydrate (g)
- 7.41
- Fibre (g)
- 3.01
- Vitamin K (µg)
- 43.9
- Vitamin B6 (mg)
- 0.121
- Calcium (mg)
- 40
- Iron (mg)
- 0.652
- Magnesium (mg)
- 28.2
- Phosphorus (mg)
- 41.2
- Potassium (mg)
- 290
- Zinc (mg)
- 0.35
Where to buy seed and equipment
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Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.
Grown Scarlet Runner Bean?
Post a crop report — day counts, reservoir readings, what worked. Variety-specific logs are the most useful thing on the forum.
Similar varieties
Other beans with a comparable time to harvest, so a season that suits Scarlet Runner Bean suits these too.
- Bountiful Bush Bean 48 days
- Early Contender Bush Bean 49 days
- Bush Romano Italian 50 days
- Bush Lake Bean 50 days
- Provider Green Bush Bean 50 days
- Burpee's Stringless Green Pod 50 days