Where can I buy the rocks that Hens and Chicks like to grow on? Thank you in advance,
Thanks for contacting the Toronto Master Gardeners.
Hens and chicks look lovely when grown en mass in handmade concrete troughs. You may want to check garden centres or check on line under concrete troughs. We cannot recommend specific stores but you can get a list of garden centres from Landscape Ontario. https://landscapeontario.com/
Good luck in your search.