Planted bamboo in alkaline soil
Hi everyone, hope you can help. A few weeks ago I planted some phyllostacus aureosulcata f. aureosulcata in a planter, and used a mix of topsoil and manure to plant in. The topsoil was in bags that I'd ordered. Same with the manure, which was advertised as well rotted.
Some bamboo leaves were a little yellowed when I planted the plants but most of the plants now have a large number of yellow leaves. I've just done a pH test and the soil comes out as quite alkaline. I realise now that I was probably overeager with the manure and should have added less of that, as I believe it is quite alkaline?
Having read that bamboo prefers an acidic to neutral soil, what would people recommend that I do? Is this the sort of thing that can resolve itself or would it be better to take the plants out and make the soil mix more balanced towards topsoil and less towards manure? Or is there another approach that would disrupt the plants less?