Also known as Narrow-Leaf False Dragonhead
Physostegia angustifolia, the Narrowleaf False Dragonhead, is a clump-forming perennial with tall spikes of pink to purple tubular flowers blooming in mid to late summer.
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 for best flowering.
Consistent Moisture
50% intensity
Water when the top soil is dry to the touch. Ensure good drainage.
Loam, Clay, Sand, Acidic, Neutral, Alkaline
50% intensity
Moderate to Warm
50% intensity
Thrives in temperatures between 18-25°C. Tolerates occasional heat waves.
Light Feeding
25% intensity
A balanced fertilizer in spring is usually enough. Avoid over-fertilizing.
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
Provide consistent moisture, especially during dry periods. Water deeply when the top 2-3 cm of soil feels dry. Avoid waterlogged conditions, as this can lead to root rot.
In hot weather, more frequent watering may be necessary to maintain soil hydration.
Deadhead spent flowers to encourage reblooming and maintain a tidy appearance. Cut back the entire plant to about 10-15 cm above the ground in late fall or early spring before new growth emerges.
This prevents overcrowding and promotes vigorous new shoots.
Propagate by stem cuttings taken in late spring or early summer. Select healthy stems, cut them about 10 cm long, and remove lower leaves.
Insert cuttings into moist potting mix and keep them in a warm, humid environment until rooted.
Repot container-grown plants every 2-3 years, or when they become root-bound. Choose a pot that is slightly larger than the current one. Use a well-draining potting mix.
Repot in early spring before new growth begins to minimize transplant shock.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Narrowleaf False Dragonhead (Physostegia angustifolia)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Physostegia |
| Species | Physostegia angustifolia |
Similar in genus Physostegia
Answers based on plant encyclopedia data
