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.
Classic bright-red globe shaped radish. Mild flavour, sweet and crisp.
Ideal for children to grow. Keeps well in the fridge.
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 plant info is provided by the myfolia gardener's wiki. All details about Radish 'Sparkler' have been kindly provided by our members.
How to grow Radish 'Sparkler'
Once your radishes germinate, keep them watered as evenly as possible. Do not over water, but don’t let them dry out either.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 soil ph of 5.5 - 6.8 meaning it does 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.
Do not transplant.
For Square Foot gardens, these are planted 16 per sq. ft…trust me, you can actually fit that many.
Radish 'Sparkler' information
How long does Sparkler take to grow?
These estimates for how long Radish 'Sparkler' takes to sprout, grow and harvest are from real observations from real gardeners, right around the world. Start logging and journaling your observations to participate!
When should I sow Sparkler?
Folia's when to plant Radish 'Sparkler' estimates are relative to your last frost date. Enter your frost dates and we'll calculate your sowing and planting dates for you!