Hilly Sandwort (Arenaria benthamii) is a low-growing perennial herb forming dense mats of linear leaves and producing small white star-shaped flowers in summer.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers bright sunlight for optimal growth and flowering.
Moderate
50% intensity
Allow soil to dry slightly between waterings; reduce in winter.
Well-drained, sandy, or gravelly soils
50% intensity
Moderate
50% intensity
Prefers average room temperatures; avoid extreme heat or cold.
Low
25% intensity
Fertilize sparingly in spring with a balanced liquid feed.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water Arenaria benthamii moderately during the growing season, allowing the soil to dry out slightly between waterings. Reduce watering significantly in winter.
Ensure good drainage to prevent root rot, as this plant is sensitive to waterlogged conditions. Overwatering is a common cause of failure.
Prune Arenaria benthamii after flowering to maintain a tidy shape and encourage denser growth. Deadhead spent blooms to promote further flowering.
Light trimming can be done to control its spread or remove any straggly stems. Avoid heavy pruning.
Propagate Arenaria benthamii from seed sown in spring or by taking basal cuttings in late spring. Seeds can be sown in a well-draining compost and kept moist.
Cuttings should be rooted in a sandy mix and kept in a protected environment until established.
Repot Arenaria benthamii every 2-3 years in spring, or when the plant becomes root-bound. Use a gritty, well-draining compost mix. Choose a pot slightly larger than the current one to avoid over-potting.
Handle the roots gently during repotting.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Hilly Sandwort (Arenaria benthamii)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Caryophyllales |
| Family | Caryophyllaceae |
| Genus | Arenaria |
| Species | Arenaria benthamii |
Similar in genus Arenaria
Answers based on plant encyclopedia data
