Exacum amplexicaule is a captivating annual plant featuring star-shaped, vibrant blue to purple flowers, ideal for adding a splash of color to containers and borders.
At-a-glance light, water, soil, and growing conditions from plant data
Bright Indirect Light
75% intensity
Prefers bright, filtered sunlight. Direct afternoon sun can scorch the leaves.
Consistently Moist
75% intensity
Allow topsoil to dry slightly between waterings, but do not let it dry out completely. Ensure good drainage.
Well-drained
50% intensity
Moderate Room Temperature
50% intensity
Ideal temperatures range from 18-24°C. Avoid sudden temperature fluctuations and cold drafts.
Light Feeding
25% intensity
Feed with a balanced liquid fertilizer diluted to half strength during the growing season.
Safety information from plant toxicity data
| Attribute | Value |
|---|
None
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Exacum amplexicaule prefers consistently moist soil but dislikes waterlogged conditions. Water thoroughly when the top 2-3 cm of soil feels dry to the touch.
Reduce watering slightly during cooler months to prevent root rot. Ensure good drainage to avoid standing water.
Prune Exacum amplexicaule to maintain a compact shape and encourage bushier growth. Pinch back the tips of stems regularly, especially when the plant is young.
Deadhead spent flowers to promote continuous blooming and prevent the plant from expending energy on seed production.
Exacum amplexicaule can be propagated from seed or stem cuttings. Sow seeds indoors in early spring, covering them lightly with soil and keeping them moist and warm.
Root stem cuttings in a well-draining medium, providing bottom heat and humidity for best results.
Repot Exacum amplexicaule every 1-2 years, or when it becomes root-bound. Choose a pot that is only slightly larger than the current one, with ample drainage holes. Use a light, well-draining potting mix.
Repot in spring, just before the start of the active growing season.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Exacum Amplexicaule (Exacum amplexicaule)
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Gentianales |
| Family | Gentianaceae |
| Genus | Exacum |
| Species | Exacum amplexicaule |
Similar in genus Exacum
Answers based on plant encyclopedia data
