Q: I would like to plant a butterfly garden including things like blazing star, coneflower, and salvia. Is it best to plant the small plants during spring?
A: You can plant the small pots in the fall as well as spring. The species you mention all like fairly well-drained soil, so make sure you plant them in an area that will not stay too wet over winter. Snow--when we have it--is a good thing for overwintering plants as it adds insulation and keeps them from freezing. Mulch will do the same thing, and you should add mulch around the plants anyway.
Q: When will seed packets be available? Thanks!
A: It's hard to say. It depends on yearly harvest of seed and when it gets processed. Our seed supply is best between late October and mid January. We don't have a production field for this species, so availability changes from year to year.
Q: Will glade coneflower seeds be available this Fall? Thank you
A: It's hard to say. We don't have a seed production field for this species, so it depends on how much we have left over after we've kept the seed we'll need for plant production.
Q: Why isn't the Glade Coneflower available in seed packets like the catalog indicates?
A: The catalog is printed every year in late winter. When the 2017 catalog was printed, we had enough glade coneflower seed in stock to offer it in the catalog. We have since sold out, and this year's harvest did not yield enough to allow for any seed sales. The website indicates our current availability and has a more accurate inventory than the catalog. A "quicklink" on the homepage called "Current Inventory" will show everything in stock right now: http://mowildflowers.net/assets/images/Misc%20plant%20information/WEB%20SPREAD.xlsx
Q: How much heat can this tolerate? The south side of my house has a bed that gets hellishly hot.
A: It can take a helluva lot of heat. It should be fine, especially if you get it planted in early spring or late fall.
Q: Does this plant spread?
A: It could come up from seed, but it is more finicky about its growing conditions when compared to purple coneflower (E. purpurea), which can be a bit aggressive in some situations.