Acidic soil with ample moisture. Dappled to full shade.
Try to plant in a location that enjoys dappled sun and remember to water often. Keep in mind when planting that Miller's Crimson is thought of as hardy, so this plant will survive close to or on freezing temperatures. Miller's Crimson tends to grow best in a soil ph of between 5.5 and 6.0 meaning it does best in weakly acidic soil.Requires light. Do not cover. Responds well to winter-sowing.
By our calculations, you should look at sowing Miller's Crimson about 105 days before your last frost date.