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Geek Guides Plant Guide Plants Perennials Delphinium cardinale
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Delphinium cardinale
Pronunciation: del-FIN-ee-um car-di-NALE
Family: Ranunculaceae, Buttercup
Common Name: Scarlet Larkspur
Plant Type:
- perennial
Height to: 6'
Width to: 3'
USDA Hardiness Zones:
- -10 to -20ºF ZONE 5
- 0 to -10ºF ZONE 6
- 10 to 0ºF ZONE 7
- 20 to 10ºF ZONE 8
- 30 to 20ºF ZONE 9
Bloom Description: scarlet red flowers in early summer on loose central spike
Bloom Season:
- early summer
Sun Exposure:
- full sun
- part sun
Soil Type: well-drained, organic, dry scrub areas
Pests and Diseases:
bacterial leaf spot, crown rot and black leg; fungal crown and stem rots, damping-off, powdery mildew, leaf spots; viruses; aphids, cutworms, borers, leaf miners, beetles, sowbugs, root mealybug, mites, nematodes, slugs
Propagation: fresh seed or stratify, solid spring basal cuttings
Native to: So. Calif.
Notes:
Growth rate: moderate to fast
Foliage: palmately lobed or divided
Light: sun
Pests and problems: bacterial leaf spot, crown rot and black leg; fungal crown and stem rots, damping-off, powdery mildew, leaf spots; viruses; aphids, cutworms, borers, leaf miners, beetles, sowbugs, root mealybug, mites, nematodes, slugs
Landscape habit, uses: front to back of borders
Other interest: hollow and brittle stems, short-lived in the South
Other culture: require heavy fertility, staking of tall cultivars Source: Perry's Perennial Pages, University of Vermont
Submitted by: Pectiwiccan
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