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Family: Apiaceae
(ay-pee-AY-see-ee) Genus: Eryngium (er-RIN-jee-um) Species: alpinum (AL-pin-um) Cultivar: Amethyst
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Category PerennialsWater Requirements Average Water Needs; Water regularly; do not overwaterSun Exposure Full SunSun to Partial Shade Foliage HerbaceousFoliage Color UnknownHeight 24-36 in. (60-90 cm)Spacing 18-24 in. (45-60 cm)Hardiness USDA Zone 5a: to -28.8 °C (-20 °F)USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F) |
Where to Grow Grow outdoors year-round in hardiness zoneDanger N/ABloom Color Chartreuse (yellow-green)Blue-Violet Lavender Bloom Characteristics Flowers are good for cuttingFlowers are good for drying and preserving Bloom Size UnknownBloom Time Mid SummerOther details UnknownSoil pH requirements 6.1 to 6.5 (mildly acidic)6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline) Patent Information Non-patentedPropagation Methods By dividing the rootballBy dividing rhizomes, tubers, corms or bulbs (including offsets) Seed Collecting N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed |