Also known as Asthma Weed · Basal-Leaved Pellitory · Basil-Leaved Pellitory
Pellitory-of-the-wall (Parietaria judaica) is a fast-growing perennial herb often found in shaded, damp walls and crevices. It has a creeping habit and can spread easily.
At-a-glance light, water, soil, and growing conditions from plant data
Partial Shade
50% intensity
Thrives in partial shade to full sun, tolerates some shade.
Moderate
50% intensity
Keep soil consistently moist, but not waterlogged.
Well-drained
50% intensity
Moderate
50% intensity
Prefers temperatures between 10-24°C. Tolerates cooler conditions.
Low
25% intensity
Infrequent feeding; a balanced fertilizer once in spring is sufficient.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Non-toxic
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Pellitory-of-the-wall prefers consistently moist soil but can tolerate periods of drought once established. Water thoroughly when the top 2-3 cm of soil feels dry.
Avoid waterlogged conditions, which can lead to root rot. Reduce watering in cooler months to prevent over-saturation.
Pruning is primarily for managing size and shape, or to remove dead or damaged foliage. Trim back leggy growth in spring or after flowering to encourage bushier habit. It can be cut back hard to rejuvenate.
Deadheading can prevent unwanted self-seeding.
Pellitory-of-the-wall is easily propagated by seeds sown in situ in spring or autumn, or by division of established clumps in spring. Cuttings can also be taken in late spring or early summer and rooted in moist soil or water.
Repotting is rarely necessary as Parietaria judaica is often grown directly in the ground or in established containers where it may naturalize. If it outgrows its pot, repot in spring into a slightly larger container with fresh, well-draining potting mix.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Pellitory-Of-The-Wall (Parietaria judaica)
Where Pellitory-Of-The-Wall (Parietaria judaica) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Rosales |
| Family | Urticaceae |
| Genus | Parietaria |
| Species | Parietaria judaica |
Similar in genus Parietaria
Answers based on plant encyclopedia data
