Allotment Gardening Advice Help Chat
Growing => General Gardening => Topic started by: mdjlucan on July 26, 2022, 19:14
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What is the best compost to put a lavender plant in a big big pot
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Lavender needs good drainage and so I would put a decent layer of gravel or broken pots in the base. For the compost I would use John Innes no. 2 just because that is what I always have on hand. If it is a mature plant, John Innes no.3 might be better.
John Innes is a soil based compost so can be quite heavy and dense, depending on the soil used as the main ingredient. To lighten it up, I usually mix some multi-purpose compost in. It is hard to give a specific amount, but I aim for a mix that still feels like it has some body to it, but also quite easy to dig into with your hands. Somewhere between 25 and 50 per cent of multi-purpose usually does it.