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Blue Curls, Vinegar Weed, Turpentine Weed

Trichostema lanceolatum

Family: Lamiaceae (lay-mee-AY-see-ee) (Info)
Genus: Trichostema (try-ko-STEM-uh) (Info)
Species: lanceolatum (lan-see-oh-LAY-tum) (Info)




Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Flowers are fragrant

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


18-24 in. (45-60 cm)

24-36 in. (60-90 cm)


12-15 in. (30-38 cm)


USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

Sun Exposure:

Full Sun

Sun to Partial Shade



Bloom Color:

Medium Blue

White/Near White

Bloom Time:

Late Summer/Early Fall

Mid Fall

Late Fall/Early Winter

Blooms all year

Blooms repeatedly




This plant is resistant to deer

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

From seed; direct sow after last frost

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting:

Bag seedheads to capture ripening seed

Properly cleaned, seed can be successfully stored


This plant has been said to grow in the following regions:

Agoura Hills, California

Menifee, California

Santa Margarita, California

Gardeners' Notes:


On Jul 1, 2011, 2QandLearn from Menifee, CA (Zone 9a) wrote:

I am in southern Riverside County in California, and last year two of these came up just outside our fence, in heavy clay soil. They never got very big, but I was shown some larger specimens just up the road. This year I notice three of them coming up outside our fence, and maybe five that are growing just up the road.

I watered the ones we had last year, & wonder if I should do the same this year.

(The ones up the road always seem to be larger than those outside our fence. But they all look --and smell-- alike . . . like turpentine. It reminds me of when my dad used to paint something!)

I enjoy the small pretty blue flowers on this plant, and hope that it continues to come up next to or in our yard! (:

I also enjoy the sme... read more


On Oct 11, 2008, Kelli from L.A. (Canoga Park), CA (Zone 10a) wrote:

One of the few plants to bloom here in the wild in the summer. The odor of the foliage seems to be an acquired taste. I used to think it was awful. Now I think it is interesting. It does have a vinegar smell, but it is more complex than that.