Crocosmia grow from corms which sit just below the surface.
We use a big red variety called ‘Lucifer’ in our designs, because although they do spread into large clumps, getting rid of the ones you don’t want is relatively easy because they are shallow rooted.
Crocosmia form ever increasing clumps, as the clump gets bigger, you get fewer flower spikes coming up. Every 2-3 years you may need to lift and split the clumps to reinvigorate the flowers again, but it will be worth it.
Crocosmia’s are really pretty tropical looking plants, the leaves glow with sunlight behind them and the flowers do make you feel it’s summery – even in the rain!