Many gardeners will tell you that aphids are the bane of their existence. According to a new study from the University of Florida, these tiny pests also pose problems for the iconic monarch butterfly.

Elizabeth Blackstone of West End Nursery, left, chats with customer Ann Brenner of Ross while Brenner selects a pair of native milkweed plants at West End Nursery in San Rafael on Tuesday, Aug. 30, ...

Some monarch butterfly researchers are questioning Marin County and other counties’ recent decision to ban tropical milkweed sales as a way to protect the state’s dwindling populations of the iconic ...

All milkweed plants — tropical or native — are good for butterflies and other pollinators, right? For the most part, that’s true. However, there is much debate between policymakers and the scientific ...

Tropical Milkweed is a popular ornamental plant featuring bright orange and yellow flowers. It is often planted in yards to attract the iconic monarch butterfly, which lays its eggs on the milkweed as ...

When artist Shawn Hall took a close look at the flowering plants in Crescent Park, she noticed something that made her curious. “I was looking at the milkweed and there was a monarch caterpillar on it ...

MARIN CO., Calif. (BCN) — Agriculture officials in Marin County banned the sale of non-native tropical milkweed this week, according to the county agriculture commission. An Aug. 24 memo from the ...