Re: Curious about Jobe's fertilizer spikes...
If you look through all the granular slow-release stuff, here is what I have found that is common with a balanced ratio:
Osmocote 13-13-13 (I think??)
Dynamite 13-13-13 and 16-16-16
MiracleGrow 10-10-10
If you can't find balanced Osmocote you can look at the other two brands which are similar. I think Vigoro has a bunch of slow release stuff as well that would be in a ratio you could use.
Laurence
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