I have an allamanda plant, and I need to re-pot. I would like advice on type of soil I should use, fertilizer required, and whatever else I might need to know. Thank you. Cushmj
Here's all the information you need to start off your allamanda plant: https://www.gardeningknowhow.com/houseplants/golden-trumpet/allamanda-indoors.htm
I would recommend using any potting soil (not one with moisture-retentive additives) or african violet soil, with an equal quantity of perlite added. Regarding fertilizer, a balanced 6-6-6 or 10-10-10 would work well. Make sure to water enough that you get a good run off from the drainage holes every time, to make sure all roots are moistened, as well as to avoid buildup of unused fertilizer salts.