50 Wild Blue Indigo Flower Seeds

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.CULTURESoil temperature: 60 degrees fahrenheitGermination lighting: DarkGermination days: 20 daysSeed Depth: 1/2"Seed Spacing: 24"Plant height: 40"Plant type: PerennialMaturation days: 365 daysWhen 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 belo