A full sun position will ensure your plant thrives and remember to water moderately. American Purple Top is generally regarded as a very hardy plant, so this plant will tend to survive through freezing conditions. American Purple Top needs a loamy and clay soil with a ph of 6.5 to 7.2 (weakly acidic soil to weakly alkaline soil).
Growing American Purple Top from seed
Plant 90 days before first frost date.
Sow 0.47 inches (1.2 cm) deep with a guideline distance of 1.95 inches (5.0 cm).
Transplanting American Purple Top
American Purple Top is very hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.