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Family: Ranunculaceae
(ra-nun-kew-LAY-see-ee) Genus: Delphinium (del-FIN-ee-um) Species: elatum (el-AH-tum) Cultivar: Guardian Blue Additional cultivar information: (Guardian series)
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Category PerennialsWater Requirements Average Water Needs; Water regularly; do not overwaterSun Exposure Full SunFoliage HerbaceousFoliage Color UnknownHeight 36-48 in. (90-120 cm)Spacing 9-12 in. (22-30 cm)Hardiness USDA Zone 3a: to -39.9 °C (-40 °F)USDA Zone 3b: to -37.2 °C (-35 °F) USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) 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) |
Where to Grow UnknownDanger All parts of plant are poisonous if ingestedBloom Color Dark BlueBloom Characteristics This plant is attractive to bees, butterflies and/or birdsBloom Size UnknownBloom Time Mid SpringLate Spring/Early Summer Other 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 UnknownPropagation Methods By dividing the rootballFrom herbaceous stem cuttings Allow cut surface to callous over before planting By air layering Seed Collecting Allow pods to dry on plant; break open to collect seedsSeed does not store well; sow as soon as possible |