These pictures show what to do to keep heucheras in pots looking good and keep them going for years!
Every 3 to 5 years or whenever you notice they are getting a bit stalky, just tidy all the foliage off. Clear out the leaves and debris from around the crowns.
Then if you want it to go back in the same pot, chop a bit off the bottom of the roots about 1 to 2 inches if they are not too stalky picture 6.
Picture 7 just rake the sides a little to encourage the roots to grow (dont go mad!) I like to shamfer the flat top of the root ball, as you can see in picture 9. This gets rid of seeds and weeds that may be on the top and leaves more room to add some nice fresh compost with a teaspoon of slow release feed per pot (keep a look out as we will be selling this soon).
Then put back into post with small amount of compost at the bottom.and top dress on the top making sure not to bury the crown, only the stalks. Then water and make sure the water comes out of the bottom of the pot. Little feet under the pots are good for this.