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| Category: Shrub |
| Family: Lamiaceae (Labiatae) (Mints) |
| Origin: California (U.S.A.) |
| Evergreen: Yes |
| Flower Color: Blue |
| Bloomtime: Spring/Fall |
| Height: 3-4 feet |
| Width: 4-5 feet |
| Exposure: Full Sun |
| Summer Dry: Yes |
| Irrigation (H2O Info): Low Water Needs |
| Winter Hardiness: 10-15° F |
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Trichostema lanatum (Woolly Blue Curls) - This California native evergreen shrub comes from dry slopes of the south coast ranges. It grows to 3-4 feet tall and sprawls to 4-5 feet with narrow aromatic leaves that are shiny green above and woolly white underneath. From late spring through summer appear the 1 foot long clusters of blue (typically) flowers with long recurved stamens. The bloom period can extend into fall with a little supplemental summer watering (only when soil drains adequately). Plant in full sun in a very well-drained lean soil as it will not tolerate summer moisture in heavy soils. Do not amend or fertilize heavily. Hardy to 10 degrees F without freezing back and has been known to recover from the base at temperatures down to below zero. Gets a little leggy with age and benefits from early pruning. Makes a great cut flower for the vase. Our plants from seed that exhibits some variability in flower color from nearly white to dark violet blue. Another listed common name for this plant is Romero, which comes from the similarities between Rosemary (Romero) and Trichostema lanatum, that were noted during the Portola expedition in 1769. Other names include California Rosemary and American Wild Rosemary.
Information displayed on this page about Trichostema lanatum is based on the research conducted about it in our library and from reliable online resources. We also note those observations we have made of this plant as it grows in the nursery's garden and in other gardens, as well how crops have performed in our nursery field. We will incorporate comments we receive from others, and welcome to hear from anyone who may have additional information, particularly if they share any cultural information that would aid others in growing it.
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