Periwinkle sunbell (Tinnea coerulea) is a captivating flowering plant with vibrant blue, bell-shaped blooms, offering a touch of elegance to shaded garden areas.
At-a-glance light, water, soil, and growing conditions from plant data
Moderate
50% intensity
Prefers bright, indirect light. Can tolerate some direct morning sun but avoid harsh afternoon sun.
Moderate
50% intensity
Keep soil consistently moist, allowing the top layer to dry slightly between waterings. Reduce in winter.
Well-drained
50% intensity
Moderate
50% intensity
Ideal temperatures range from 18-24°C during the day and slightly cooler at night. Avoid cold drafts.
Moderate
50% intensity
Feed with a balanced liquid fertilizer every 2-4 weeks during the growing season. Reduce or stop in winter.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water consistently to keep the soil evenly moist but not waterlogged. Allow the top 2-3 cm of soil to dry out between waterings. Reduce watering in winter, especially if the plant is kept in cooler conditions.
Avoid letting the plant sit in standing water, as this can lead to root rot.
Prune lightly after flowering to maintain shape and encourage bushier growth. Remove any dead, damaged, or leggy stems. Pinch back young plants to promote a more compact form.
For plants that tend to sprawl, consider more frequent light trims.
Propagate from stem cuttings taken in spring or early summer. Select healthy, non-flowering shoots, cut them to about 5-7 cm, and remove lower leaves.
Dip the cut end in rooting hormone and insert into moist, well-draining potting mix. Keep warm and humid until roots form.
Repot every 2-3 years, or when the plant becomes root-bound. Spring is the best time to repot. Use a slightly larger pot with fresh, well-draining potting mix.
Gently loosen the root ball and place the plant in the new pot at the same depth as before.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Periwinkle Sunbell (Tinnea coerulea)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Tinnea |
| Species | Tinnea coerulea |
Similar in genus Tinnea
Answers based on plant encyclopedia data
