June 11, 2018 at 1:10 pm #13014
Comfrey may be too floppy? I would think upright perennials with stiff woody stems would be best – I agree with you Jerusulem artichoke would work. Also Marsh mallow (Althaea officinalis), 1.6m, would work I think.
- This reply was modified 2 years, 10 months ago by Martin Crawford.