Alpine Alyssum (Odontarrhena alpestris) is a low-growing perennial herb with small white flowers. It thrives in rocky or alpine conditions.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers at least 6-8 hours of direct sunlight daily.
Moderate
50% intensity
Allow soil to dry slightly between waterings.
Well-drained
50% intensity
Moderate
50% intensity
Prefers temperatures between 15-24°C during the growing season.
Low
25% intensity
Feed lightly in spring with a balanced liquid fertilizer.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
Non-toxic
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water moderately when the top 2-3 cm of soil feels dry. Odontarrhena alpestris prefers well-drained soil and is sensitive to overwatering, which can lead to root rot.
Ensure good drainage in pots and reduce watering during cooler months to prevent waterlogged conditions.
Prune lightly after flowering to maintain a compact shape and encourage bushier growth. Deadhead spent blooms to promote continuous flowering and prevent seed formation.
Avoid heavy pruning, as this species benefits from its natural, somewhat spreading habit.
Propagate by seeds sown in spring or by softwood cuttings taken in late spring or early summer. Seeds may require stratification.
Cuttings should be rooted in a well-draining medium, kept moist, and provided with good air circulation until established.
Repot young plants annually or as needed in spring before new growth begins. Mature plants can be repotted every 2-3 years or when root-bound.
Use a well-draining potting mix, ideally a sandy loam or a specialized cactus/succulent blend.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Alpine Alyssum (Odontarrhena alpestris)
Where Alpine Alyssum (Odontarrhena alpestris) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Brassicales |
| Family | Brassicaceae |
| Genus | Odontarrhena |
| Species | Odontarrhena alpestris |
Similar in genus Odontarrhena
Answers based on plant encyclopedia data
