Gritty Mix CRF
I've recently moved over all my citrus plants to al's gritty mix. I did not add a CRF at the time but want to now. I believe citrus need a fertilizer ratio of 5-1-3? and my plants are currently being given FP 9-3-6. I don't have access to the osmocote line of products because I live in Canada. Can anyone recommend a different product or a favourable citrus ratio for a CRF that I can add? Thanks in advance.