Alert: Limited Online Availability

Now that fall is here, we have limited our stock for online purchase. Find Monrovia plants at your local garden center. Pre-order for 2023 will be available later this year. ×

Summer Blues Delphinium

Delphinium grandiflorum 'Summer Blues'

SKU
32215
Bright sky blue flowers arranged in dainty clusters rather than long, spiky stems of traditional larkspur. Thrives in heat and humidity. Upright, slightly rounded habit is perfect for mixed containers. Outstanding color for a perennial border!
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3-7

Your climate might be too cold for this plant:

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Full sun, Partial sun

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

THIS PLANT MAY BE AVAILABLE IN THESE STORES:

Due to the seasonal nature of plants, availability at your local garden center is not guaranteed. Give them a call before visiting.

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Botanical Pronunciationdel-FIN-ee-um gran-dih-FLOR-um
Average Size at MaturityReaches 10 to 12 in. tall and wide.
Bloom TimeLate Spring to Late Summer
Flower AttributeFlowers for Cutting, Long Bloom Season, Showy Flowers
Flower ColorBlue
Growth RateModerate
Landscape UseBorder, Container
Light NeedsFull sun, Partial sun
Special FeatureAttracts Butterflies, Attracts Hummingbirds, Easy Care
Water NeedsModerate
Watering NeedsNeeds regular watering - weekly, or more often in extreme heat.

Follow a regular watering schedule during the first growing season to establish a deep, extensive root system. Remove spent flowers to prolong flowering. Cut back to the ground at the end of the season.

This Plant's Growing Zones: 3-7

USDA Cold Hardiness Zone Map

Your USDA Cold Hardiness Zone:

Your climate may be too cold for this plant