Question: what is the difference between bulb fibre and compost?
Answer: The difference between bulb fibre and multipurpose compost is that bulb fibre has a very open and free draining structure so the bulbs don't rot. Bulb Fibre has few or no nutrients as bulbs don't require them if they are only being grown short term in containers, and it has a soil 'sweetener' which is usually charcoal.