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50 Wild Blue Indigo Flower Seeds
50 Wild Blue Indigo Flower Seeds
50 Wild Blue Indigo Flower Seeds
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  • Load image into Gallery viewer, 50 Wild Blue Indigo Flower Seeds
  • Load image into Gallery viewer, 50 Wild Blue Indigo Flower Seeds

50 Wild Blue Indigo Flower Seeds

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Up for sale is one pack of 50 Wild Blue Indigo flower seeds (Baptisia australis). Suitable for zones 4-9 Indigo is a slow growing perennial that creates spiky blue flowers on very tall 40" stems. This is the same Indigo that was traditionally used to create blue dye for clothing.

PLEASE NOTE: Wild Blue Indigo will not germinate in hot summer weather and if direct sown outdoors it must be sown from fall to spring before temps reach the 80's during the day.

We offer flat rate combined shipping on all orders, no limit on the amount or type of seed packets.

CULTURE

Soil temperature: 60 degrees fahrenheit
Germination lighting: Dark
Germination days: 20 days
Seed Depth: 1/2"
Seed Spacing: 24"
Plant height: 40"
Plant type: Perennial
Maturation days: 365 days

When sowing in fall direct sow after your first frost by planting your seeds 1/2" deep as they need darkness to germinate. If in a very mild climate where it does not ever freeze in the winter you will need to cold treat these before sowing (see below).

If sowing in spring, or starting indoors in pots, you will need to cold treat these for 2 weeks prior to sowing. Mix your seeds with 1/2 cup of potting soil or peat in a baggie and add two tablespoons of water. Place the baggie in your fridge (not your freezer) for two weeks and then sow 1/2" deep.

Wild Blue Indigo is a very slow growing perennial and can take up to one year before it flowers. At the end of your growing season, and after your first frost in fall, it will naturally turn black where you can cut it to the ground where it will re-grow the following spring.