Posted: 18/07/2016 at 11:34
perovskias will flop whatever you do but you can mitigate this to an extent.
I cut back in late April/ early May....helps somewhat to produce stronger stems. Grow without fertiliser and don't water; grow in full sun and don't allow taller plants in their space. Fast, free draining soil. Good open spot. You could grow helychrysum, artemisia powys castle or santolinas with them as long as they are regularly shorn. However, grow perovskias close together to create a support system
the perfect solution though is buy Perovskia Little Spire. Half the height with the same lovely blue flowers. It's what I do now
no, not great for pots Justin
Last edited: 18 July 2016 11:36:31