Posted: 10/03/2017 at 11:42
Is this Multi-purpose compost or loam based - Im presuming it's MPC.
I find the MPC breaks down and becomes dusty quite quickly. I'd perhaps re-use it once, but no more than that. I'd also go through it carefully to ensure that no vine weevil grubs were lurking ready to eat my plants' roots.
I think Fish, Blood and Bone would provide sufficient nutrition to re-charge the compost - I'd then use some tomato feed when watering flowering annual bedding plants to keep the flowers coming.
Let us know how you get on