Seed Swaps

Radish 'Plum Purple'   

Raphanus sativus

  • 31 plantings
  • 7 available for swap
  • 7 wanted
  • 37 stashed

Plum Purple is a variety of Radish which is a member of the Raphanus family. Its botanical name is Raphanus sativus 'Plum Purple'. Plum Purple is a heirloom (open pollinated) variety. Its fruits normally ripen as a colour very similar to   Electric purple and   White.

25-30 DTM. Hardy and adaptable.
Plant produces deep purple round radish roots with white, firm, mild flesh. Seldom pithy like some radishes can get. Roots are about 1.5 inches (3 cm) in diameter. Produces well in fall and spring.

Plum Purple grows as an Annual and is a Vegetable. Being an Annual, it tends to grow best over the course of a single year. Normally grows to a mature height of 15.0 cm (5.85 inches).

Plum Purple Radish is normally fairly low maintenance and quite easy to grow, as long as a level of basic care is provided throughout the year. Being aware of the basic soil, sun and water preferences will result in a happier and healthier plant.

This variety plant info is provided by the myfolia gardener's wiki. All details about Plum Purple have been kindly provided by our members.

How to grow Plum Purple

  • Full Sun

  • Medium

A full sun position will ensure your plant thrives and remember to water moderately. Plum Purple is generally regarded as a half hardy plant, so remember to protect this plant from frosts and low temperatures. Use USDA Hardiness Zone 5 - 14 as your guideline for the appropriate climate for this plant. Plum Purple needs a loamy, clay and sandy soil with a ph of 5.5 to 6.8 (weakly acidic soil).

Growing Plum Purple from seed

Try to aim for a seed spacing of at least 0.98 inches (2.5 cm) and sow at a depth of around 0.47 inches (1.2 cm). For optimal germination, soil temperature should be a minimum of 13°C / 55°F.

By our calculations, you should look at sowing Plum Purple about 28 days before your last frost date.

Transplanting Plum Purple

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.

Harvesting Plum Purple

Purple roots with white flesh, ready in 28 days.

This variety tends to mature and be ready for harvest in early spring.

Radish Plum Purple Etymology

Released by the Alf Christianson Seed Company, 1985.

Misspellings of Radish 'Plum Purple'

plumpurple, purpleplum

Other Names for Radish 'Plum Purple'

Purple Plum