Water
Water thoroughly when the top 2-3 cm of soil feels dry. Avoid overwatering, as this can lead to root rot. Reduce watering in winter.
Ensure good drainage to prevent waterlogged conditions, which Trachelium caeruleum dislikes.
Also known as Blue Throatwort · Throatword · Throatwort
Trachelium caeruleum, also known as Blue Throatwort, is an attractive perennial herb producing clusters of star-shaped blue flowers, ideal for borders and cutting gardens
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun to Partial Shade
75% intensity
Prefers at least 6 hours of direct sunlight daily but tolerates some shade.
Moderate
50% intensity
Allow soil to dry slightly between waterings. Ensure good drainage.
Well-drained
50% intensity
Moderate
50% intensity
Prefers temperatures between 15-24°C. Protect from frost.
Outdoor
50% intensity
Moderate
50% intensity
Feed with a balanced liquid fertilizer diluted by half during the growing season.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
Non-toxic
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water thoroughly when the top 2-3 cm of soil feels dry. Avoid overwatering, as this can lead to root rot. Reduce watering in winter.
Ensure good drainage to prevent waterlogged conditions, which Trachelium caeruleum dislikes.
Deadhead spent flowers regularly to encourage more blooms. Cut back stems after flowering to maintain a tidy shape and prevent self-seeding if undesirable.
Prune in spring to shape and remove any winter damage before new growth begins.
Propagate from seed sown in spring, or from basal cuttings taken in late spring. Seeds germinate best with light and warmth. Cuttings root readily in a moist, well-draining medium.
Seedlings may need protection from frost.
Repot young plants annually in spring, and mature plants every 2-3 years as needed. Use a well-draining potting mix. Choose a pot only slightly larger than the current one.
Ensure the pot has adequate drainage holes to prevent waterlogging.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Trachelium Caeruleum (Trachelium caeruleum)
Where Trachelium Caeruleum (Trachelium caeruleum) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Campanulaceae |
| Genus | Trachelium |
| Species | Trachelium caeruleum |
Similar in genus Trachelium
Answers based on plant encyclopedia data
