What the hail stones did to my nasturtium leaves recently

"Spring came./He rooted up the nettles with his hands./He burnt them all, stamped on the clotted ash,/Tamping new seeds in, fingering stones aside./This work he wanted, his hands came alive./ They wanted flowers to touch./ But from his care/ Only the tough nasturtiums came./They crawled/ In sullen fire by the wall a week./ But the soil was sour, the roots went unfed./ Even they ceased to clutch, their heads fell forward."  From "Gardener" by Dom Moraes