Cast-iron plant might sound like a strange name for a tropical evergreen, but once you realize how exceptionally tough this plant is, you’ll understand the label.Aspidistra elatior is incredibly tolerant of neglect. Dro
12.06.2023 - 01:07 / gardenerspath.com / Kristine Lofgren
How to Use Chrysanthemums for Pest Control in the GardenChrysanthemums are more than just a pretty face. We love these plants for their colorful pom poms that last all summer long, but underneath that cheery facade lies a killer.
Of insects, that is.
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Humans have been using chrysanthemums as a powerful insecticide for centuries and it’s the most popular home insecticide today.
While you can buy the stuff at pretty much any garden store, you can make your own insecticide using those same lovely flowers that you grow in your garden.
You can also use clever companion planting to help discourage annoying pests from visiting your veggies and ornamentals.
This guide will explain both options. Ready to learn how to make the most of chrysanthemums for pest control? Here’s what you can expect:
The dalmatian chrysanthemum – which is the one we primarily use for its pest-repelling properties – originated in China before being brought to Japan and then the West in the 17th century.
It’s part of the Asteraceae family, which also includes marigolds, daisies, chamomile, and tarragon.
What Are Pyrethrins?Have you ever heard of a pesticide that contains pyrethrins? That’s made out of chrysanthemums!
Clever scientists extract these organic compounds from dalmatian chrysanthemums (Tanacetum cinerariifolium, formerly Chrysanthemum cinerariifolium), and sometimes painted daisies (C. coccineum, which is now classified as T. coccineum) to make a powerful insecticide that kills insects but has low toxicity to birds and mammals – including humans.
It’s one of those wonderful modern inventions that is built on something many gardeners have
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