I have bought two lemongrass plants, which I have potted with John Innes No 2 but the leaves are going light yes slow..is this the

Question

correct compost?

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Answer 1

The compost is fine... It needs to be mixed with potting soil, though. It doesn't appear to have any aeration, and it is likely much too strong for a grass. I would mix it into a potting mix at 1/3 strength, and work from there, adding a handful every few weeks.

This article will give you more information on the care of lemongrass: https://www.gardeningknowhow.com/edible/herbs/lemongrass/learn-about-growing-lemon-grass-plant.htm