Beans
45-55days to harvest
7-14days to germinate
Z3–10USDA zones
Easydifficulty
HeirloomContainer friendly

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

ZoneStart indoorsTransplantDirect sowHarvest
1——July – AugustSeptember – August
2——June – AugustSeptember
3——June – JulyAugust – October
4——June – JulyAugust – September
5——May – JuneAugust – September
6——May – JuneJuly – September
7——April – JuneJuly – August
8——April – MayJune – August
9——March – AprilMay – July
10——February – AprilMay – June
11——January – MarchApril – May
12——January – MarchApril – May
13——January – MarchApril – May

Companion planting

8 beneficial pairings indexed for this variety, 3 to avoid.

CornProvides natural support structure for climbing beans while beans fix nitrogen for corn
SquashPart of Three Sisters planting, large leaves shade soil and suppress weeds
MarigoldsRepel Mexican bean beetles and other harmful insects
NasturtiumsAct as trap crop for aphids and cucumber beetles, keep pests away from beans
CarrotsBeans improve soil nitrogen while carrots break up soil, benefiting bean root development
RadishesHelp break up compacted soil and may deter bean root fly
LettuceBenefits from nitrogen fixed by beans, provides living mulch
Summer SavoryRepels bean beetles and may improve bean flavor and growth

Avoid

OnionsCan inhibit bean growth and nitrogen fixation through root compounds
SunflowersAllelopathic compounds can stunt bean growth and compete for nutrients
FennelProduces allelopathic compounds that inhibit growth of beans and most garden plants

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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Growing it? There is a full cultivation guide at the beans growing guide.

Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.

DarkGrow forum

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.

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