I grew mine from seeds still waiting for them to flower, this will be their 3rd year so I’m hopeful..  the leaves look lovely really huge and lush,  bit like the Echiums, take 3 years from seeds.Â
Gardening on the wild, windy west side of Dartmoor.Â
My plant has produced some seed heads, quite a few on each stem of the plant. Will these germinate in seed trays and should I sow them now? Perhaps some of the seeds have fallen below the mother plant and I assume these will self germinate over the winter/spring too?
I grew acanthus in my Belgian garden where it was so happy in rich, fertile soil it never got around to flowering. I dug them out but bits kept growing back.  Thug.
I have seen it round here growing in next to nothing in very dry spots such as the base of a church wall and flwoering their socks off. Looks fine.
Yes, GD, sow the seeds and see what happens. Keep a few back for spring sowing just in case. Be careful what you wish for.
Thanks for the warning @Obelixx , however I will try sowing a few to overwinter in the greenhouse and let nature take it's course with those seeds that drop from the mother plant. Root cuttings may be another source of multiplying this plant, although I don't intend digging the large plant out at the moment, thanks for the suggestion @Paul B3
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I have seen it round here growing in next to nothing in very dry spots such as the base of a church wall and flwoering their socks off. Looks fine.
Yes, GD, sow the seeds and see what happens. Keep a few back for spring sowing just in case. Be careful what you wish for.