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Delphinium patens

Native California perennial in the Ranunculaceae with blue flowers and upward-pointing spurs, about 8–24 inches tall, prefers part shade, grows in grassy and woodland habitats, and blooms in spring, attracting swallowtail butterflies.

Is Delphinium patens growing in your garden? Record it and all of your plants in Known.

Common Names

Spreading Larkspur, Zigzag Larkspur

Summary

Native to California, this perennial herb grows in grassy and woodland habitats on dry slopes in sun or shade and typically reaches about 2 ft tall. It bears blue to purple flowers with upward-pointing spurs, commonly called Spreading Larkspur or Zigzag Larkspur, and attracts hummingbirds, bees, and butterflies.

Prefers bright direct sunlight with moderate temperatures and humidity; water only as soil partly dries to avoid waterlogging; requires well-draining loamy soil with pH slightly acidic to neutral and a compost mix; fertilize with a balanced 10-10-10 during spring and summer; repot every 2–3 years in early spring; propagate by seeds (late winter/early spring) or division (early spring or fall); after flowering, remove spent flowers and cut back stems to base; all parts contain alkaloids and are toxic if ingested; do not eat and handle with care.

Lifecycle

Perennial

Height

8-20 inches

Hardiness Zones

Zones 6

Sunlight Requirements

Ideally full sun or partial shade.

Soil Type

Well-draining loamy soil, pH around 6.5.

Soil Drainage

Well-drained loamy soil

Soil pH

6.0-7.0, Slightly acidic to neutral

Bloom Color

Blue to purple

Bloom Time

Spring

Foliage Color

Reddish

Leaf Lifecycle

Deciduous

Seasons of Interest

Spring, Summer, Fall

Propagation Methods

Seeds and Division

Attracts Wildlife

Bees and hummingbirds attracted; butterflies and other pollinators (moths) likely attracted

Taxonomy

Taxonomic Rank
Species
Author
Benth.
Publication
Pl. Hartw. : 296 (1849)

Superior Taxa

Kingdom
Plantae
Subkingdom
Pteridobiotina
Phylum
Angiosperms
Order
Ranunculales
Family
Ranunculaceae
Genus
Delphinium

Inferior Taxa

Delphinium patens subsp. montanum

Synonyms

Delphinium tricorne var. patens Delphinium patens subsp. patens Delphinium decorum var. patens

References

Delphinium patens subsp. patens. dev.floranorthamerica.org.
Jepson eFlora Search Page. ucjeps.berkeley.edu.
Delphinium patens ssp. patens - Calflora. calflora.org.
Delphinium patens subsp. patens in Flora of North …. efloras.org.
Delphinium patens - Rob's plants. robsplants.com.
Spreading Larkspur - Calscape. calscape.org.
Comment grandir Delphinium patens. earthone.io.
Delphinium patens Benth. | Plants of the World Onl…. powo.science.kew.org.
Delphinium patens subsp. montanum | /RHS. rhs.org.uk.
Delphinium patens. species.data.kew.org.
Delphinium patens | Zigzag Larkspur, Spreading Lar…. californiagardens.com.
World Flora Online. worldfloraonline.org. June 2024.