Plant in a location that enjoys full sun and remember to apply water fairly sparingly. Keep in mind when planting that Sundial Scarlet is thought of as tender, so remember to ensure that temperatures are mild before moving outdoors. Ideally plant in sandy, potting mix and silty soil and try to keep the ph of your soil between the range of 5.6 and 7.5 as Sundial Scarlet likes to be in weakly acidic soil to weakly alkaline soil.
Growing Sundial Scarlet from seed
By our calculations, you should look at sowing Sundial Scarlet about 49 days before your last frost date.
Transplanting Sundial Scarlet
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Sundial Scarlet is a tender plant.