Native to the prairies of southern North America, false indigo grows well in almost any well-drained soil in USDA hardiness zones 5 to 9. It is a low-maintenance perennial plant that produces ...

As a bonus, Blue False Indigo also attracts pollinators that can be beneficial to your vegetable garden along with butterflies. There is a caveat, however. This plant can be toxic to humans.

are a non-preferred plant for rabbits and deer, and attract butterflies. Baptisia australis, blue false indigo, forms a mound of bluish green foliage and blooms with spikes of one-inch blue flowers.