Blue False Indigo - Baptisia Australis Flower Seeds

False Indigo Seeds

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Flower Specifications

Season: Perennial

USDA Zones: 3 - 9

Height: 40 inches

Bloom Season: Late spring through summer

Bloom Color: Blue

Environment: Full sun to partial shade

Soil Type: Well drained, pH 5.8 - 6.8

Deer Resistant: Yes

House Plant: No

Latin Name: Baptisia Australis

Planting Directions

Temperature: Lower temperatures of less than 41F are very effective.

Average Germ Time: 21 - 28 days

Light Required: Do not leave in direct sunlight

Depth: Surface sow and lightly cover no more than 1/8th inch

Sowing Rate: 2 - 3 seeds per plant

Moisture: Constant moisture must be maintained

Plant Spacing: 24 - 36 inches

Blue False Indigo (Baptisia Australis) - Native to the United States, False Indigo grows well from flower seeds, and historically the plants used to be in demand for the dye that was made from the blue flowers. This shrub-like hardy perennial is in the pea family and prefers cool climates.

Attracts pollinators

The False Indigo flower shape and nectar content make them attractive to bumble bees, butterflies, and hummingbirds.

blue false indigo flowers

False indigo seed | blue

How to grow

How To Grow False Indigo From Seed: Baptisia australis seeds have a hard outer coat so a cold/moist treatment before starting the flower seeds indoors is needed. Or, directly sow the False Indigo seeds directly outdoors in the fall, and all the harsh temps of winter to soften the seed coat naturally.

False Indigo care includes following a regular watering schedule the first growing to encourage a good root system. Also, trim the plants back in the fall as they turn black with the first freeze.

  • Sowing Rate: 2 - 3 seeds per plant
  • Average Germ Time: 21 - 28 days
  • Keep moist until germination
  • Attracts bees, butterflies and hummingbirds
  • Depth: Surface sow and lightly cover no more than 1/8 inch
false indigo seeds blue

Flower Specifications

Blue False Indigo has an upright growth, pea-like blue flowers followed by dark, shiny pea pods and attractive foliage. Also called Wild Indigo or Blue False Indigo, this interesting native prefers at least 6 hours of sun each day.

  • Height: 40 inches
  • USDA Zones: 3 - 9
  • Season: Perennial
  • Deer Resistant: Yes