Also known as Blue Water-Hyssop · Carolina Water Hyssop · Carolina Water-Hyssop
Blue Waterhyssop (Bacopa caroliniana) is a semi-aquatic perennial with fragrant, pale blue to lavender flowers. It thrives in moist to wet soils and shallow water.
At-a-glance light, water, soil, and growing conditions from plant data
Full sun to partial shade
75% intensity
Thrives in at least 6 hours of direct sunlight daily, but can tolerate some shade.
Regular watering
100% intensity
Prefers consistently moist to wet soil; can tolerate standing water.
Loam, Clay, Sandy loam, adaptable to boggy conditions
50% intensity
Warm
75% intensity
Prefers temperatures between 18-24°C. Protect from frost; it is hardy in USDA zones 7-11.
Light feeding
50% intensity
Fertilize with a balanced liquid fertilizer diluted to half strength 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 |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Keep the soil consistently moist, especially during the growing season. Blue Waterhyssop thrives in wet conditions and can tolerate standing water.
Reduce watering slightly in winter, but do not allow the soil to dry out completely. Overwatering is less of a concern than allowing the plant to become too dry.
Prune Blue Waterhyssop to maintain a tidy shape and encourage bushier growth. Pinch back the tips of stems regularly during the growing season. Remove any dead or leggy stems at any time.
Heavy pruning can be done in early spring before new growth begins.
Blue Waterhyssop is easily propagated by stem cuttings. Take 5-10 cm cuttings from healthy stems in spring or summer.
Remove the lower leaves and insert the cuttings into moist potting mix or directly into water or wet soil. Roots usually form within a few weeks.
Repot Blue Waterhyssop every 1-2 years, or when the plant becomes root-bound. Use a well-draining potting mix that retains moisture. A slightly larger pot is usually sufficient.
Repotting is best done in early spring before the active growing season begins.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Blue Waterhyssop (Bacopa caroliniana)
Where Blue Waterhyssop (Bacopa caroliniana) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Plantaginaceae |
| Genus | Bacopa |
| Species | Bacopa caroliniana |
Similar in genus Bacopa
Answers based on plant encyclopedia data
