My husband put weed N feed on the flower garden before the milkweed came up. Will this hurt the milkweed for the monarch caterpillars??
It depends how the weed and feed works. If it needs to be absorbed into the leaves, then you may be OK. I'd worry about any other plants in the garden that may have already been up when he sprayed. My understanding is that Weed and Feed type products will attack any broad leaf plant. So, basically anything but grasses/lawn. If the product is one that absorbs into the ground and attacks the root system, then you might be in trouble. I've been amazed at how sensitive nearby plants are to what I thought was a controlled/focused treatment of a single plant with Round Up. I guess even a slight breeze can carry a light misting of chemical much further than you realize. Use great care when applying any chemicals.
it wasn't sprayed. It was sprinkled on the ground and it did not hurt my flowers and the milk weed has come up looking very strong. I think it is the kind that gets absorbed by the roots. So I guess I better be safe than sorry and get the milk weed from the back field right??