|I have a huge bed of iris, peionies, cone flowers and carnations. Every year I pull or dig out wild onions and they return. I need a permenant fix to the problem. I can not over spray with round up. Any ideas.
|Answer from NGA
April 29, 2010
|It's difficult to eradicate wild onions because any little bulb left in the soil will sprout. Glyphosate (Round Up) is effective but repeat applications must be made. You might be able to paint the glyphosate onto each wild onion to kill it off. If this doesn't work you may want to empty the bed of your perennials and treat the entire bed with glyphostate to kill the wild onions. Wish there were an easier solution.
« Return to the Garden Knowledgebase Homepage