Seed Swaps

Radish 'Sparkler'       

Raphanus sativus

  • 115 plantings
  • 16 available for swap
  • 3 wanted
  • 121 stashed

Sparkler is part of the Raphanus genus and is a Radish variety. Its scientific name is Raphanus sativus 'Sparkler'. Sparkler is a heirloom (open pollinated) variety. This variety typically blooms in the following colours:   Arylide yellow and   Unmellow Yellow. When mature, blooms are roughly 1.0 cm (that's 0.39 inches in imperial) in diameter.The mature flowers take a Single form, with an approximate petal count of 4. This variety typically produces fruit in the following colours:   Candy apple red and   Pale pink. The leaves of this particular variety normally show as   Sea green and   La Salle Green colour.

Classic bright-red globe shaped radish. Mild flavour, sweet and crisp. Ideal for children to grow. Keeps well in the fridge.
Grows and crops quickly, so sometimes it is possible to squeeze a row inbetween a slower maturing crop such as potatoes or carrots

It is an Vegetable and is treated mainly as a Annual, This means that it grows best over the course of a single year. Normally growing to a mature height of 15.0 cm (5.85 inches), Sparkler grows with a stemless-like habit.

Typically, Sparkler Radish is normally fairly low maintenance and can thus be quite easy to grow - only a basic level of care is required throughout the year to ensure it thrives. Being aware of the basic growing conditions this plant likes (soil, sun and water) will result in a strong and vibrant plant.

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

How to grow Sparkler

  • Full Sun

  • Medium

Once your radishes germinate, keep them watered as evenly as possible. Do not over water, but don’t let them dry out either.
Thin out the seedlings to give enough room for the root to grow

Position in a full sun location and remember to water moderately. Keep in mind when planting that Sparkler is thought of as half hardy, 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. Sparkler requires a loamy, clay and sandy soil with a ph of 5.5 - 6.8 - it grows best in weakly acidic soil.

Growing Sparkler from seed

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.

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). Soil temperature should be kept higher than 13°C / 55°F to ensure good germination.

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

Transplanting Sparkler

Do not transplant, the root will not develop correctly. For Square Foot gardens, these are planted 16 per sq. ft…trust me, you can actually fit that many.

Ensure that temperatures are mild (minimum night temperatures should be around 10°C / 50°F) and all chance of frost has passed before planting out, as Sparkler is a half hardy plant.

Harvesting Sparkler

Harvest as soon as the root is large enough to use, older radish easily grow tough and woody and run to seed

Expect harvests to start to occur in early spring.