Invasive Spotlight: Dame’s Rocket
It feels a little mean to pick on a plant that smells like a dream and looks like a purple sunset, but Dame’s Rocket (Hesperis matronalis) is a classic case of an uninvited houseguest who starts moving your furniture around.
Because it’s a prolific seeder, it doesn't just sit there looking cute; it aggressively outcompetes the native wildflowers that our local pollinators actually depend on. When Dame's Rocket moves in, biodiversity moves out. Since it has no natural predator (bugs or diseases) here to keep it in check, it creates a monoculture that leaves our forests looking beautiful but ecologically hollow.
So, consider this your green light: if you see it, pick it! It makes a stunning bouquet, and every flower you put in a vase is a thousand seeds that won't end up in the soil.
The biggest hurdle is that Dame’s Rocket looks nearly identical to our beloved Native Phlox (Phlox spp.). They both boast clusters of pink, purple, and white flowers, but there is a sure fire way to tell them apart.
If you aren't sure which one you’re looking at, just count the petals:
Dame’s Rocket: Has 4 petals per flower. Think "D" for Dame and "4" (they both have straight lines? Okay, it's a stretch, but remember: 4 is the foe!).
Native Phlox: Has 5 petals per flower.
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