Lilly's have not bloomed this year
I've had the lilly plants for about 4 years, bloomed okay until last year. Seperated them this spring(maybe a bit late), fertilized with job spikes as before, no blooms this year. they are planted in matting covered with pea gravel. There are 2ea Koi about 12" in the pond with the lillies. When they bloomed last year and before there were at least 2ea Koi in the pond. they have been fertilized twice this year, the pond ia about 18"deep. Any suggestions? Thanks for your thoughts.