Danger, Danger, Will Robinson: all parts of the plant are poisonous.
When to sow: Spring if treating as an annual in cold climates. Spring or fall in warmer places. Give the plants time to get established before the first frost if planting in autumn.
Special treatment: Soak the seeds for a few days. Frequently change the water to remove growth inhibitors.
Fresh or dried seed: Either will work.
Planting depth: 3/4 inch
Preferred temperature for germination: Day temperatures should exceed 60º Fahrenheit; the nights should not be colder than 40º Fahrenheit.
Days to germination: 10-40 days
Vegetative propagation: Can also be propagated by root cuttings 3-4 inches long. Bury about one inch deep in the soil.