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Acanthus mollis

Bear's Breech · Bear's Breeches · Sea-holly

Family AcanthaceaeGenus Acanthus

A tall spike of white hooded flowers, each set under a dark maroon bract, ranged up a green stem
FlowerHectonichusCC BY-SA 3.0

About the plant

What it is and where it grows — not part of any germination protocol.

The plant

Habit
Herbaceous Perennial, PerennialExtension Gardener Plant Toolbox
Habit
perennialPlants of the World Online
Height
3-6 ft0.9-1.8 mExtension Gardener Plant Toolbox
Spread
2-3 ft60-90 cmExtension Gardener Plant Toolbox
Flower
Pink, Purple/Lavender, WhiteExtension Gardener Plant Toolbox
Blooms
Spring, SummerExtension Gardener Plant Toolbox
Native range
Algeria, East Aegean Is., Greece, Italy, Lebanon-Syria, Morocco and elsewhereGBIF Backbone Taxonomy
Hardiness zones
7-10Extension Gardener Plant Toolbox

Growing conditions

Sun
Full sun; Partial ShadeExtension Gardener Plant Toolbox
Soil
Clay, Loam (Silt), Sand, Shallow RockyExtension Gardener Plant Toolbox
Moisture
Good Drainage, MoistExtension Gardener Plant Toolbox

Toxicity is noted only where a source states it. No note here is not a finding of safety.

Sources: Extension Gardener Plant Toolbox — NC State Extension; Plants of the World Online — Royal Botanic Gardens, Kew; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • The plant inspired the Greek sculptor Callimachus to design the Corinthian capital, in the fifth century BCE. Wikipedia: Acanthus mollis

Protocol

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 9 days to germinate.

33% germination in 9 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Acanthus p. 14Public domain
Show the original text
Acanthus (Acanthaceae). A. mollis germ. 70D(1/3 on 9th d) and 40(all 3 rotted).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Acanthus p. 14. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.

Germination trials

Readers’ own records of sowing this species, published after review. Share your trial · All trials

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