Water
Water Blackstonia imperfoliata sparingly. Allow the soil to dry out completely between waterings. Overwatering is a common cause of root rot.
Ensure excellent drainage to prevent waterlogging, especially during its dormant period.
Blackstonia imperfoliata is a delicate, erect annual herb with bright yellow, star-shaped flowers blooming in summer. It thrives in sandy, well-drained soils and open, su
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers full sun exposure for optimal growth and flowering. Can tolerate some partial shade but may become leggy.
Infrequent
25% intensity
Allow soil to dry out completely between waterings. Excellent drainage is crucial to prevent root rot.
Well-drained
50% intensity
Moderate
50% intensity
Prefers warm to hot summers. Protect from frost during winter months; it is not reliably hardy in colder climates.
None required
0% intensity
Thrives in nutrient-poor soils. Avoid fertilization; if growth is very poor, a weak, low-nitrogen feed in spring may be cautiously applied.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
None
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water Blackstonia imperfoliata sparingly. Allow the soil to dry out completely between waterings. Overwatering is a common cause of root rot.
Ensure excellent drainage to prevent waterlogging, especially during its dormant period.
Pruning is not typically necessary for Blackstonia imperfoliata. Dead or damaged foliage can be removed at any time to maintain a tidy appearance.
No significant shaping or size control is generally needed for this species.
Propagation is best achieved by seed. Sow seeds in spring in a well-draining, gritty compost. Germination can be erratic and may require stratification. Division of established clumps is also possible but less common.
Repotting is rarely needed for Blackstonia imperfoliata as it prefers to be root-bound. If necessary, repot in spring before new growth begins, using a very gritty, free-draining compost mix. Handle the roots gently.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Blackstonia Imperfoliata (Blackstonia imperfoliata)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Gentianales |
| Family | Gentianaceae |
| Genus | Blackstonia |
| Species | Blackstonia imperfoliata |
Similar in genus Blackstonia
Answers based on plant encyclopedia data
