Try to plant in a location that enjoys full sun and remember to apply water fairly sparingly. Keep in mind when planting that Rich Purple is thought of as hardy, so this plant will survive close to or on freezing temperatures. Rich Purple tends to grow best in a soil ph of between 5.5 and 7.0 meaning it does best in weakly acidic soil - neutral soil.
Growing Rich Purple from seed
By our calculations, you should look at sowing Rich Purple about 63 days before your last frost date.
Transplanting Rich Purple
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Rich Purple is a hardy plant.