Amethyst
Amethyst is a bush bean with fruit around 5-5 1/2". Ready from roughly day 56. Germination takes 7-14 days. Space 4-6 inches apart. Full sun (6+ hours). Bush habit, so it needs no staking.

Sowing
Direct sow after last frost when soil temperature reaches 60°F
Cultivation
- Sun
- Full sun (6+ hours)
- Water
- Regular
- Soil
- Well-drained, fertile soil
- Spacing
- 4-6 inches
- Height
- 12-18 inches
- Season
- Warm season annual
Appearance & flavour
- Colour
- Deep purple
- Size
- 5-5 1/2"
- Shape
- Bush
- Flavour
- Very good flavor both raw and cooked, with tender mild taste and slight sweetness; turns green when cooked.
In the kitchen
Fresh eating, cooking, steaming, stir-fries
Pests, disease & resistance
- Pests
- Bean beetles, spider mites, aphids
- Diseases
- Bean anthracnose, rust, powdery mildew
- Resistance
- One or more races of Bean Mosaic Virus (High)
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 – October |
| 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 Amethyst?
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 Amethyst suits these too.
- Northeaster 56 days
- Affirmed 56 days
- Jade Bush Bean 55 days
- Cobra 55 days
- Purple Top Bush Bean 55 days
- Purple Podded Bush Bean 55 days