True Indigo (Indigofera tinctoria)
Prized since ancient times for its brilliant blue dye, this heirloom also makes a fine ornamental with sprigs of bright pink flowers. Drought-tolerant Indigo plants require an extended growing season and can reach 4’ tall. Challenging to germinate but worth the patience. Annual, biennial, or perennial depending on zone.
- 30 seeds minimum
- Germination: 15-30 days
- Start seeds in pots indoors 4-8 weeks before last frost. Plant seeds in starting mix and cover very lightly. Keep moist but not soggy. Expose to sunlight as seeds germinate. Gradually harden off after all danger of frost and carefully transplant.
- Space plants 12-36” apart.