[Pete from Shawnee Mission]

Phosphate fertilizers can encourage flowering in both Tomatoes and Peppers. At this point a fast acting fertilizer might encourage blooming. You could try something like seabird guano or Miracle Grow Sure Bloom both of which have a very high Phosphate content.

No experience with Dahlias.

(Rain and thunder..Signing off for now!)

[Qiviut]

Thanks!