First time I've seen this product. Actually, 24-6-12 would be a 4:1:2 ratio. I think it would be a reasonable choice for plants you want to accelerate the development of, but I'd probably resist its use for plants that you grow for blooms or their fruit ('fruit', in the botanical sense). The lack of Ca isn't an issue if you're using lime in your medium, and the fact that Mg is represented in the formulation without Ca isn't much of a problem because the amt of Mg is so low. If you aren't using lime in your medium and are only using this fertilizer, you should supplement Ca and Mg with something like Cal/Mag or use a little gypsum when you make the soil and regularly supplement with low doses of Epsom salts (MgSO4) each time you fertilize. The urea does stimulate coarser growth than N in nitrate form, so coupled with the heavy N content it might stimulate coarser growth (longer internodes and larger leaves) in some plants, so it might not be a top choice for houseplants or plants you want to keep compact (bonsai, Japanese maples, mixed plantings, ..........).

Compared to the MG products 24-8-16 and 12-4-8, I'd likely only choose the 24-6-12 for plants the growth of which I wanted to accelerate.

Al

Yeah its a 4.1.2 (Oh dear where has my calculating skills gone?)

Ill just use it on the lettuce in the vege patch then. Thanks Al :-)