Holly Hocks are biannual's ..ya know leaves frist year flowers the next..
CF when yours go to seed dont just let them reseed themselves, work the seeds into the ground so the birds n critters have a lesser chance of getting them and so you get leaves this fall that will die off then flowers next summer. I use a garden claw to loosen the soil and work them in or sometimes I use jiffy pots to plant them. they have tap roots and dont like being transplanted. so far mine have come back every year for the past 10 years.
Spuds maybe you should take all your seeds off and toss them in your neighbors yard
W8in sorry you missed your blooms. hopefully nexy year you can get a pic.
My soil there in is clay and rocks. cause its up by my driveway.