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Woolly Bluecurls

Trichostema lanatum

Last reviewed: September 2026

Woolly bluecurls is a drought tolerant evergreen shrub with fragrant, woolly gray-green foliage and spikes of deep blue-violet flowers that bloom from May through July in full sun and dry, well-drained soil.

Woolly Bluecurls (Trichostema lanatum)
Photo: (c) Daniel S., some rights reserved (CC BY)

Woolly Bluecurls (Trichostema lanatum) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org (opens in new tab), last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

full sun

Water

low

Size

24"–60" H × 24"–48" W

Bloom

May, Jun, Jul

Native to

CA

Pollinators

bees, hummingbirds, butterflies

Before you buy

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Woolly bluecurls is a striking native shrub with fuzzy purple flower spikes and aromatic foliage. It features unique lavender-blue flowers with long, curling stamens that bloom in late spring through summer. The silvery-gray foliage provides year-round texture and interest in drought-tolerant gardens.

Growing Woolly Bluecurls

Grow Woolly Bluecurls in full sun and low water. Mature plants reach 24 to 60 inches tall and spread 24 to 48 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Woolly Bluecurls is an HOA-friendly choice in the right placement. Maintenance level: moderate. Tidiness: 3 out of 5.

Works well in: foundation, mid zone.

  • Can look somewhat shaggy without occasional pruning
  • May die back prematurely if overwatered or in poorly draining soil
  • Moderate lifespan (3-5 years) means replacement may be needed periodically

Wildlife value

This plant is highly attractive to native bees and hummingbirds, which are drawn to its nectar-rich flowers. Butterflies also frequently visit the blooms, making it an excellent pollinator plant.

Common questions

When does woolly bluecurls bloom?
Woolly bluecurls typically flowers from May through July, producing dense spikes of blue-violet blooms wrapped in fuzzy purple calyces.
How much water does woolly bluecurls need?
It is a low-water shrub adapted to dry, well-drained soils. Established plants need little to no supplemental irrigation and can struggle if watered too often, especially in summer.
What pollinators does woolly bluecurls attract?
Its blooms draw bees, hummingbirds, and butterflies, making it a useful nectar source in dry-climate gardens during late spring and summer.
What growing conditions suit woolly bluecurls best?
It grows best in full sun on rocky or sandy, well-drained slopes, the kind of dry, open sites found in chaparral and coastal scrub plant communities.
Does woolly bluecurls lose its leaves in winter?
No, it is an evergreen shrub and keeps its narrow, woolly gray-green leaves throughout the year.
Is Woolly Bluecurls toxic to dogs?
Woolly Bluecurls is not on the ASPCA Animal Poison Control Center toxic plant list for dogs (aspca.org).
Is Woolly Bluecurls toxic to cats?
Woolly Bluecurls is not on the ASPCA Animal Poison Control Center toxic plant list for cats (aspca.org).
Is Woolly Bluecurls HOA-friendly?
Woolly Bluecurls is generally an HOA-friendly choice in the right placement, with moderate maintenance.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

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