Summer Stars Delphinium

Delphinium grandiflorum 'Summer Stars'

SKU
32183
Beautify the summer garden with tall spires of beautiful white flowers. Added heat-resistance extends the flowering season into late summer. This perennial’s upright and freely flowering habit is a superb choice for borders and naturalized areas.
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3-7

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Full sun

Needs regular watering - weekly, or more often in extreme heat.

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Botanical Pronunciationdel-FIN-ee-um gran-dih-FLOR-um
Average Size at MaturityFoliage clumps 14 to 18 in. tall, 12 to 15 in. wide.
Bloom TimeSummer
Deciduous/ EvergreenHerbaceous
Flower AttributeFlowers for Cutting, Long Bloom Season, Showy Flowers
Flower ColorWhite
Foliage ColorGreen
Garden StyleCottage, Rustic
Growth HabitUpright
Growth RateModerate
Landscape UseBorder, Container, Mass Planting, Cutting Garden
Light NeedsFull sun
Special FeatureAttracts Butterflies, Attracts Hummingbirds, Easy Care, Extreme Cold Hardiness, Naturalizes Well
Water NeedsModerate
Watering NeedsNeeds regular watering - weekly, or more often in extreme heat.
Companion PlantsBlanket Flower (Gaillardia); Black-Eyed Susan (Rudbeckia); Coneflower (Echinacea); Phlox (Phlox); Shasta Daisy (Chrysanthemum)

Thrives in rich neutral to alkaline soils; amend soil with lime if needed. Water deeply and regularly during the first growing season to establish an extensive root system. Feed with an all-purpose fertilizer in spring; repeat after first bloom flush. Prune spent blooms to prolong flowering. Cut back to the ground at the end of the season.

This Plant's Growing Zones: 3-7

Your USDA Cold Hardiness Zone:

Your climate may be too cold for this plant