The White Wild Indigo is an upright perennial plant that has attractive clusters of white, pea-shaped flowers. It is native to the central and eastern North America. Hardy in zones 4-9.
Growing Instructions for the White Wild Indigo
The seeds have a period of dormancy. They can be planted outdoors in the fall or winter for spring germination or they can be cold stratified to simulate winter conditions and to break their dormancy at any time of the year. The seeds have a hard seed coat that has to be treated, or scarified, in order for water to enter the seeds so that they can sprout. 1. Scarify the seeds by nicking or sanding the seed coat. The seeds can be sanded with sandpaper, a nail file or an emery board. 2. Soak the seed in water for several hours. 3. Place the seeds in a plastic bag and seal it. Store the bag in a refrigerator for 6-12 weeks. 4. Fill a pot with potting soil. Use a pot that has drainage holes in the base. 5. Sow the seeds on the soil and cover them with a layer of soil ¼ of an inch thick. 6. Water the container and leave it to drain. 7. Put the pot in a warm, sunny area. 8. Water the pot regularly so that the soil is moist but not wet. 9. The seedlings can be transplanted when they are a few inches tall.