It carries a parasite of Monarch Butterflies termed Ophryocystis elektroscirrha, or OE, which might induce defects in the wings of Monarchs. Since it doesn’t die back again and will bloom late, the plant itself may additionally confuse Monarchs by signaling a breeding season when it’s time to migrate. Environmental stressors https://exploreyourgarden.site/are-milkweeds-perennials-or-annuals/