Siskiyou Bluecurls (Trichostema simulatum) is a perennial herb native to northern California and southern Oregon, found in dry, open woodlands and chaparral. It features.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun to Partial Shade
75% intensity
Prefers at least six hours of direct sunlight daily for best flowering, but tolerates some afternoon shade.
Moderate
50% intensity
Allow soil to dry slightly between waterings during the growing season. Reduce in fall/winter.
Well-drained
50% intensity
Moderate to Cool
50% intensity
Thrives in moderate temperatures during the growing season. Protect from extreme heat and frost.
Low
25% intensity
Light feeding in spring with a balanced fertilizer diluted to half strength is sufficient.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water moderately during the growing season, allowing the soil to dry out slightly between waterings. Reduce watering significantly in fall and winter, providing only enough to prevent complete desiccation.
Overwatering can lead to root rot, especially in poorly draining soils.
Prune lightly after flowering to maintain a tidy shape and encourage bushier growth. Remove any dead or damaged stems at any time of year.
Avoid heavy pruning, as this plant prefers a more natural form and can be slow to recover from severe cutting.
Propagate by seed, sown in autumn or early spring. Stratification may improve germination rates. Softwood cuttings can be taken in late spring or early summer and rooted under mist in a well-draining medium.
Success can be variable.
Repot young plants annually or biennially in spring. Mature plants are best left undisturbed and may only need repotting every 3-5 years or when root-bound.
Use a well-draining potting mix, ideally with a good proportion of sand or grit.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Siskiyou Bluecurls (Trichostema simulatum)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Trichostema |
| Species | Trichostema simulatum |
Similar in genus Trichostema
Answers based on plant encyclopedia data
