Hi Meme: I use osmocote when I pot plants up. Then I will use fish emulsion and alternate with miracle grow in the hose thing during bloom times. . I try to fertilize the flowering plants at least every other week. I maybe overrrrrr doing it some bu t with all the water that we have to use, I just think they are hungry.

Looking at the fertilizers that I already had but just re-found,

I have Miracle-Gro (for sprayer)-24-8-16 (for green plant growth)

Then I found Miracle-Gro Bloom Booster (for sprayer)15-30-15 (for more flowers)

I think I just answered my own question. The middle number should be higher for more blooms.

So that's why the Osmocote is not making my Snapdragons bloom but I have a lot of nice greens. I'm out of practice! LOL

(I'm so happy I can finally post a topic. IDK what they (HOUZZ) did but somebody fixed it for me and I can say "thank you" now too!)

Only a soil test on your site can tell for sure, but most of the widely available fertilizers are way too high nitrogen for anything but foliage plants unless you are gardening on sand. Most years I just need 0-10-20. for bulbs and flowering plants. Something similar is sold in small bags as expensive "potato fertilizer" but I just mix my own from generic bulk bags of triple phosphate and potassium sulfate.