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I have heucherellas trailing from a tall pot by the front door. They are now touching the ground but with no bushiness in the pot itself. Is it safe to trim them and will that make them bush out?
It would be ok to take them back to half way now.
Then in the spring you can chop back lower when the new growth starts again.
You could give them a feed with seaweed based food which help to bush them out.
We will have our own feed on sale in the spring which we recommend for heuchera heucherella & tiarella (good for other plants too )
Hope this helps
Have a lovely Christmas
Heucherella ‘Redstone Falls’ (811)
Vicky and Richard Fox