QuestionsHow to growTrees and ShrubsPlantingcomposts 0 Vote Up Vote Down mary ryan asked 14 years ago Is there any general purpose compost suitable for ericaceous plants. i got some conifer and thymus doone valley. how can they be in the same container when one is a lime hater and the other is not 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago General purpose compost has lime in it.Use the lime-free compost and the lime-tolerant plant will not mind.