- Author: Kathy Keatley Garvey
if it's a streak of gray, you don't wash it away.
You welcome it.
The gray hairstreak butterfly (Strymon melinus) is common on our sedum, a good fall plant for pollinators, including butterflies, honey bees, sweat bees and syrphid flies, aka hover flies or flower flies.
Butterfly expert Art Shapiro, distinguished professor of evolution and ecology at the University of California, Davis, says on his website that the gray hairstreak visits "an immense variety of flowers, both wild and cultivated. They are particularly addicted to Heliotrope and white-flowered Apiaceae."
Apiaceae? That's the carrot family, which includes not only carrots but parsley, celery, Queen Ann'es lace, parsnip, cilantro, hemlock, fennel and anise. Heliotropes, which commonly yield pink-purple flowers, are good for graystreaks, but not good for horses. It's toxic and can induce liver failure, according to the ASPCA's Animal Poison Control Center.
You can't be too careful out there.