amymaierNeighborhood control needed for Canada Thistles!!
There are several large patches of now-seeding Canada thistle on people’s property. They are one of the hardest worst nonnative plants that Colorado has. They spread everywhere and kill the native plants. Besides being pokey !!!!! Once they flower, and seed, the only effective option is to hand cut the tops, bag them, seal them and put into trash. Any seeds that escape (by the 1000s) will start new horror stories elsewhere. The flowers will go to seed even after you cut them, so bag the flowers, too!! Once the seeds/ flowers have been collected, you can cut or mow the rest of the plant down. Goal: Don’t let them bloom!!!!!
Good luck!
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