Safety note: This plant may be toxic to humans and pets. See toxicity details.
Sand milkweed (Asclepias arenaria) is a low-growing perennial herb native to sandy soils in North America, providing important nectar for pollinators.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers at least 6 hours of direct sunlight daily for optimal growth and flowering.
Moderate to Low
50% intensity
Allow soil to dry between waterings. Excellent drainage is crucial.
Sandy, well-drained soil
50% intensity
Moderate to Warm
75% intensity
Thrives in warm summer temperatures. Hardy in USDA zones 3-9.
Low
25% intensity
Does not require frequent feeding; adapted to nutrient-poor soils.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | Yes 3/5 intensity |
| Toxic for pets | Yes 3/5 intensity |
All parts of the plant contain latex, which can be irritating to skin and toxic if ingested.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water Asclepias arenaria thoroughly when the soil is dry to the touch. Allow the soil to dry out between waterings, especially during the dormant season. Overwatering can lead to root rot, so ensure good drainage.
In its natural sandy habitat, it tolerates drier conditions.
Pruning is typically minimal. Remove dead or damaged stems in late winter or early spring before new growth begins.
Deadheading spent flowers can prevent unwanted reseeding, though this is less of a concern for this species.
Propagate Asclepias arenaria from seed. Sow seeds in spring, either indoors a few weeks before the last frost or directly outdoors after the danger of frost has passed.
Scarification or cold stratification may improve germination rates. Cuttings can also be taken in early summer.
Repotting is rarely necessary for Asclepias arenaria, as it thrives in well-drained, sandy conditions and prefers to be slightly root-bound. If container-grown and it outgrows its pot, repot in spring using a gritty, well-draining soil mix.
Identify plants like this with ePlant AI
Snap a photo to get care tips and match similar species on the go.
Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Sand Milkweed (Asclepias arenaria)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Gentianales |
| Family | Apocynaceae |
| Genus | Asclepias |
| Species | Asclepias arenaria |
Similar in genus Asclepias
Answers based on plant encyclopedia data
