Water
Keep soil consistently moist but not waterlogged. Water deeply when the top 2-3 cm of soil feels dry. Reduce watering slightly in cooler weather or when the plant is dormant to prevent root rot.
Ensure good drainage to avoid waterlogging.
Also known as Bristly Alcea · Hairy Alcea · Hairy Hollyhock
Bristly Hollyhock (Alcea setosa) is a striking herbaceous perennial, known for its rough, bristly stems and vibrant, often pinkish-purple, hollyhock-like flowers.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
75% intensity
Prefers at least 6-8 hours of direct sunlight daily for best flowering and growth.
Consistent Moisture
50% intensity
Water deeply when the top 2-3 cm of soil is dry. Avoid waterlogging.
Well-drained, fertile soil
50% intensity
Moderate
50% intensity
Prefers average room temperatures during the growing season. Protect from extreme heat.
Moderate
50% intensity
Feed with a balanced fertilizer in spring and summer. Avoid over-fertilization.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
None
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Keep soil consistently moist but not waterlogged. Water deeply when the top 2-3 cm of soil feels dry. Reduce watering slightly in cooler weather or when the plant is dormant to prevent root rot.
Ensure good drainage to avoid waterlogging.
Deadhead spent flowers regularly to encourage continuous blooming and prevent self-seeding if not desired.
Cut back the plant by about one-third after flowering to promote a tidier appearance and encourage stronger growth next season. Remove any dead or diseased foliage promptly.
Propagate by seeds sown in early spring or autumn. Seeds can be sown directly into the garden bed or started indoors a few weeks before the last frost.
Division of established clumps in early spring is also an effective method for propagating this species.
Repot container-grown plants every 2-3 years in early spring before new growth begins. Choose a pot that is slightly larger than the current one with good drainage holes.
Use a well-draining potting mix amended with compost.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Bristly Hollyhock (Alcea setosa)
Where Bristly Hollyhock (Alcea setosa) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Malvales |
| Family | Malvaceae |
| Genus | Alcea |
| Species | Alcea setosa |
Similar in genus Alcea
Answers based on plant encyclopedia data
