Trichostema lanatum

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 Trichostema lanatum subsp. var.  romero or Woolly Blue Curls, Blue curls
Trichostema lanatum
Habit: herbaceous
Height: to
Width: to
2ft5ft 2ft
Height: 2 ft to 5 ft
Width: warning.png"" cannot be used as a page name in this wiki. to 2 ft
Bloom: early spring, mid spring, late spring, early summer, mid summer, late summer
Exposure: sun
Features: flowers
Hidden fields, interally pass variables to right place
Minimum Temp: °Fwarning.png"°F" is not a number.
USDA Zones: 6 to 10
Sunset Zones:
Flower features: blue, purple
Lamiaceae > Trichostema lanatum var. ,

Trichostema lanatum (romero or Woolly Blue Curls) is a small evergreen shrub or sub-shrub native to arid coastal regions of California. It is many-branched and grows to 1.5 m (5 ft) tall, with narrow, pointed green leaves. The smooth-petaled blue flowers are born in dense clusters, with the stem and calyces covered in woolly hairs of blue, pink, or white.

Standard Cyclopedia of Horticulture

Trichostema lanatum, Benth. A perennial shrubby plant with rosemary-like lvs. and cymes of fls. in a naked terminal thyrse: lvs. narrow-linear, 1-nerved, sessile, margins revolute: calyx and corolla covered with dense violet or purple wool; corolla 1/2 in. long. S. Calif.—A very handsome shrub, known as "ramero." CH

The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


T. lanatum does not tolerate summer water at all and dislikes 'wet feet' at any time of year. The soil must be fairly loose and well-drained. Even a single inadvertent summer watering can cause the plant to die if enough water gets into the root system. Even in its growing season, supplemental watering must be judiciously used if there is not enough rainfall. Placing the plant on a slightly raised knoll or berm helps prevent premature death from water, certainly this is not a plant to put in a swale or a depression; raising it up may be the only way to get it to survive in a less than ideal soil.


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