The drive from Reno to Boise is an excuse to look for milkweed. I may also scatters some Mexican Whorled Milkweed seeds along the way. [graduation congratulations trip to see Derek McDowell]
One of the most vocal groups claiming that the toxicity of milkweed makes if it an invasive is the farmers. If you are a farmer and you have a pasture with cattle or other livestock, then milkweed is not a good plant to have in your pasture. Sadly that with the drought across the Western states grasslands are becoming barren.
Milkweed should not be encouraged to grow in a pasture. I am simpathetic to the animals who may be compelled by food scarcity to graze on milkweed. Its is not a crop to be raised for grazing.
I know Idaho has a lot of open range grazing for their cattle.Despite the know absence of Milkweed across the country. I am still hoping to find milkweed in the city and state parks near Boise, ID.
There are no cattle grazing in the city parks as far as I know. I plan to look along the Boise River path that meanders thru town. With so many climate similarities to Reno and out Truckee River I think it's likely that there can be Mexican Whorled Milkweed Milkweed and Showy Milkweed on the banks of the river. I depart tomorrow, May 15th, 2014 (I'm up late so thats today) and will continue this post soon.
I did not see any milkweed plants. I looked the entire weekend.The aqueduct near the Boise Town Square Mall didn't have any. The path along the Boise River had a lot of diversity but no milkweed. I only walked a short section in Garden City. I did see three butterflies but I don't think any were Monarchs.