Does anyone use screened limestone that's for garden use as a supplement? I have a grapevine and someone told me to use it on the plant otherwise the grapes would be bitter so I bought some and as far as I can make out, there are no other ingredients in it. I remember Kirkie getting limestone chips at one time but I've never seen them on sale around here. I have cuttlefish bone but the torts have been biting bits off the concrete paving slabs which of course contains lime. Link
https://www.lovethegarden.com/produc...-soil-improver
According to the information sheets it's just limestone. They are little round balls