Keep in mind when planting that Dark Freckles is thought of as hardy, 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). Ideally plant in loamy soil and try to keep the ph of your soil between the range of 5.6 and 7.5 as Dark Freckles likes to be in weakly acidic soil to weakly alkaline soil.
By our calculations, you should look at sowing Dark Freckles about 90 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Dark Freckles is a hardy plant.