Details
Blue Wild Indigo, also called Baptisia or false blue indigo, is a native of North America and a great garden perennial. Being a native legume, it fixes nitrogen in the soil. The branching foliage and blossoms become showier and more developed with each subsequent growing season. It is a spectacular specimen in the flower garden. The blue-green foliage resembles a small rounded bush 3 feet in height. Tall spikes of deep blue flowers bloom above the foliage for about 6 weeks in May or June and turn into large charcoal black seed pods in late summer that are often used in flower arrangements. A fully mature plant can produce a hundred of these glorious spikes. Blue Wild Indigo has a deep taproot which permits it to withstand dry conditions and heat. It makes a nice backdrop in the perennial garden.
Blue Wild Indigo is a native host plant for the following butterflies: Wild Indigo Duskywing, Eastern Tailed-Blue, Orange Sulphur, Clouded Sulphur, Frosted Elfin, Hoary Edge.
The Cherokees used the plant as a source of blue dye for their clothes. Early pioneer settlers copied this practice. A common name, false indigo, indicates it is not the true indigo plant which was introduced from the India subcontinent and cultivated for blue dye by many landowners during the early settlement of America. Some Indian tribes used it for medicinal purposes. The Osage made eyewash from the plant. The Cherokees would make a tea from it. A hot tea was taken as a purgative and a cold tea to prevent vomiting. A pulverized root or hot tea was held over a sore tooth to relieve the pain. Indian children would use the dried pods with the loose seeds inside as rattles.
Michigan Seeds and Plants grown on our farm, Renegade Acres, in Howell, MI!
Certified Organic by Oregon Tilth.
Additional Info
Botanical Name | Baptisia australis |
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Life Cycle | Perennial |
Min. Time to Germinate | 5 Days |
Max. Time to Germinate | 30 Days |
Depth to Sow Seeds | 1/4 in. |
When to Sow | Indoors 6-8 weeks before last spring frost, Outdoors after all danger of spring frost is past, Outdoors in early spring, a month before the last spring frost |
Growing Height | 36-48 in. (90-120 cm) |
Plant Spacing | 24-36 in. (60-90 cm) |
Hardiness | USDA Zone 3a: to -35F, USDA Zone 3b: to -30F, USDA Zone 4a: to -25F, USDA Zone 4b: to -20F, USDA Zone 5a: to -15F, USDA Zone 5b: to -10F, USDA Zone 6a: to -5F, USDA Zone 6b: to 0F, USDA Zone 7a: to 5F, USDA Zone 7b: to 10F, USDA Zone 8a: to 15F, USDA Zone 8b: to 20F, USDA Zone 9a: to 25F, USDA Zone 9b: to 30F, USDA Zone 10a: to 35F, USDA Zone 10b: to 40F |
Sun Exposure | Full Sun |
Danger | Parts of plant are poisonous if ingested |
Bloom Color | Purple |
Bloom Time | Late Spring/Early Summer, Mid-Summer |
Foliage | Herbaceous |
Other Details | This plant is attractive to bees, butterflies and/or birds |
Soil pH Requirements | 6.1 to 6.5 (mildly acidic), 6.6 to 7.5 (neutral) |
Propagation Methods | From seed; direct sow outdoors in fall, From seed; sow indoors before last frost, From seed; stratify if sowing indoors, From seed; winter sow in vented containers, coldframe or unheated greenhouse, Scarify seed before sowing |
Seed Collecting | Allow pods to dry on plant; break open to collect seeds |
Seeds Per Pack | 50 |