It's illegal to buy, sell or plant purple loosestrife, and It's
banned in nurseries and farmer's markets. The native perennial
fireweed produces spikes of magenta flowers July through
September. All bindweeds have arrow shaped leaves on long stems,
and their underground rhizomes are hard to dig up. These tall
perennial wildflowers can be seen growing in moist pasture lands
and on the banks of streams and rivers from southern Canada to
Texas. The leaves and rhizomes of saponaria officinalis can be
boiled in water to make a soapy lather. What is there not to
like about a pretty, serviceable and deer-resistant plant that
endures hot, dry conditions? It is hard to beat achillea,
commonly called yarrow, in a hot dry garden site. There are over
900 species of salvias, and it is the largest genus in the mint
family.