By our calculations, you should look at sowing Plum Purple about 28 days before your last frost date.
Do not transplant. Sow in stone-free soil in early spring to early summer, and again in late summer for fall crop (if desired). Thrives in cool weather. Make successive sowings every 2 weeks. The recommendation for most root radishes is to directly sow them 4 weeks prior to your last frost date. However, you can start sowing as soon as the ground has thawed and air temperatures are averaging over 40 degrees on most days. Depending on what your springs are like (short and fast, long and drawn out), these conditions may emerge much sooner than or much later than the 4 week guide might suggest. Don’t be afraid to experiment with your start date. Cloches can be used for extra-early plantings.
Plum Purple is half hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.Purple roots with white flesh, ready in 28 days.
This variety tends to mature and be ready for harvest in early spring.Released by the Alf Christianson Seed Company, 1985.
plumpurple, purpleplum
Purple Plum