Is Acanthus mollis a perennial?
Amelia Brooks
Updated on March 17, 2026
Is Acanthus mollis a perennial?
Bright green, leafy perennial, fully hardy and evergreen in mild areas. Will grow to about 3-4ft tall and across. Easy plant to cultivate. Acanthus will grow in sun or shade.
How do you care for Acanthus mollis?
Grow bear’s breeches in moist but well-drained soil in full sun to partial shade. Cut back stems after flowering, and tidy foliage in spring. More on growing bear’s breeches: Acanthus mollis.
Are Acanthus mollis poisonous?
Is Acanthus spinosus poisonous? Acanthus spinosus has no toxic effects reported.
Where is acanthus mollis native to?
Mediterranean region
Acanthus mollis, commonly known as bear’s breeches, is a clump-forming perennial that is grown as much for its attractive foliage as for its architecturally bold flower spikes. It is native to the Mediterranean region.
What plants go well with Acanthus?
Recommended Companion Plants
- Campanula lactiflora ‘Prichard’s Variety’ (Milky Bellflower) Widely appreciated by gardeners, award-winning…
- Lysimachia punctata (Yellow Loosestrife)
- Centranthus ruber (Red Valerian)
- Alchemilla mollis (Lady’s Mantle)
- Verbena bonariensis (Tall Verbena)
Is bear’s breeches invasive?
Bear’s breeches is aptly named for certain species’ large and hairy leaves. The leaves inspired the designs for the head (or capital) of Greek Corinthian columns. Warning: Due to its spreading underground root system, this plant can become invasive, especially in the West.
Do you cut back Acanthus?
Pruning and caring for acanthus If you let them be, your acanthus will go to seed and self-sow for the following spring. In fall, once the foliage has wilted away, cut back as short as you can in November, and protect the foot of the plant with dried leaf mulch for instance.
Are Acanthus plants poisonous to dogs?
Bear’s Breeches or Oyster Plant (Acanthus mollis) It is said to cause mild to medium symptoms of toxicity in dogs, including vomiting, diarrhoea and lethargy.
Can you grow Acanthus in pots?
There are many varieties of Acanthus and some of them are very suitable for small gardens; A. dioscorides being the most dwarf. There are many that can be kept contained by being grown in pots and, if fed and watered, they are very successful.
Why is it called bear’s breeches?
Acanthus mollis) which means ‘Cultivated Spiny Bear Bract’, because they thought the curved bracts on the flower stalk looked like a bear claw. Over time people mis-pronounced or mis-translated the word ‘branca’ into ‘breech’, leading to the common name bear’s breech.
Is bear’s breeches poisonous to dogs?
The plant names that are listed in bold typeface are known to be dangerous to animals (dogs and cats)….Table 1: Non-toxic plants by common name.
| Common name | Latin or scientific name |
|---|---|
| Bead vine | Crassula rupestris |
| Bear’s breech | Acanthus spp |
| Beauty berry | Callicarpa spp |
What is the difference between Acanthus mollis and acanthus Spinosus?
About this cultivar: Acanthus mollis is very similar to Acanthus spinosus. The main difference being the leaves and flowers: spinosus tends to produce more flower spikes but its leaves are less broad and less soft than mollis. Soil: Almost any soil – grows well in Ballyrobert!