I have 2. A yellow flavicarpus & a Blue ? growing in a big trough -- growing all vines like crazy but no flowers yet, I know they like high k ferts & am giving them 18-18-21 tomato fert. but no blooms. Last yr same thing, but then I read that they like high K so this is what I fed them & I got a few blooms at end of summer. I mean, they are growing up & down & back up again & NO FLOWERS. Any suggestions? Vines are HUGE.

There was a passion friut vine that grew wild behind my lot-- it flowered profusly with little or no fertilizer--maybe you are being too good to it.

Also, I have seen many growing in cut-over timber fields--hot dry and low nutrient environments.

Skeet