Prefers acidic soil. Must have ample moisture. Dappled to full shade.
Try to plant in a location that enjoys dappled sun and remember to water often. Postford White is generally regarded as a hardy plant, so it can be safe to leave outdoors for the majority of winter (although if in doubt, using a row cover is often a good idea). Postford White needs a soil ph of 5.5 to 6.0 (weakly acidic soil).Requires light. Do not cover. Responds well to winter-sowing.
By our calculations, you should look at sowing Postford White about 105 days before your last frost date.