SproutSmart
SproutSmart™ Intelligent Garden Sowing

Scarlet Fall

Family: Brassicaceae Root Vegetable

Planting Schedule

Provide your location or planting zone to unlock dates and add Scarlet Fall to a garden.

Sink your senses into Scarlet Fall’s dramatic, watermelon-radish beauty—crisp flesh that bursts with a vivid, jewel-toned contrast and a clean, peppery snap.

The roots mature to an impressive size with a smooth, glossy exterior in rich scarlet, transitioning to a softly blushed interior that stays pleasantly firm and juicy. Grow it for standout fresh slices, bold roasts, and striking garnishes—its color makes every platter feel like a seasonal celebration.

Light: Full SunMaturity: 65 DaysHabit: Taproot

Botanical illustration of Scarlet Fall

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Scarlet Fall Planting Dates by USDA Zone

Estimated US hardiness-zone windows for sow, transplant, and harvest. Enter a US ZIP above for exact local dates, or open a zone below.

Zone Start Indoors Sow / Transplant Harvest
Zone 1a Protected Environment Only
Zone 1b Protected Environment Only
Zone 2a Direct Sow May 25th Jul 29th – Aug 29th
Zone 2b Direct Sow May 15th Jul 19th – Aug 25th
Zone 3a Direct Sow May 15th Jul 19th – Sep 1st
Zone 3b Direct Sow May 19th Jul 23rd – Sep 21st
Zone 4a Direct Sow May 15th Jul 19th – Sep 24th
Zone 4b Direct Sow May 13th Jul 17th – Sep 27th
Zone 5a Direct Sow May 8th Jul 12th – Sep 30th
Zone 5b Direct Sow May 4th Jul 8th – Oct 5th
Zone 6a Direct Sow May 1st Jul 5th – Oct 10th
Zone 6b Direct Sow Apr 25th Jun 29th – Oct 16th
Zone 7a Direct Sow Apr 20th Jun 24th – Oct 20th
Zone 7b Direct Sow Apr 10th Jun 14th – Oct 28th
Zone 8a Direct Sow Apr 1st Jun 5th – Nov 5th
Zone 8b Direct Sow Mar 23rd May 27th – Nov 12th
Zone 9a Direct Sow Mar 6th May 10th – Nov 26th
Zone 9b Direct Sow Feb 9th Apr 15th – Dec 9th
Zone 10a — Oct 1st Dec 5th – Feb 28th
Zone 10b — Oct 1st Dec 5th – Feb 28th
Zone 11a — Oct 1st Dec 5th – Feb 28th
Zone 11b — Oct 1st Dec 5th – Feb 28th
Zone 12a — Oct 1st Dec 5th – Feb 28th
Zone 12b — Oct 1st Dec 5th – Feb 28th
Zone 13a — Oct 1st Dec 5th – Feb 28th
Zone 13b — Oct 1st Dec 5th – Feb 28th

Crop Details

TraitValue
Days to Maturity65
Sun RequirementsFull SunFull sun
Growth HabitTaproot
Support NeededNone
Planting DepthNormal
Germination Temp (°F)55
Min Soil Temp (°F)40
Min Night Temp (°F)28
Harden Off (days)Not Required

Culinary Notes


Chef's Note

Scarlet Fall is a watermelon-radish type that slices like candy—crisp, juicy, and aggressively peppery at first bite, then mellowing into a sweet, cool finish. Use it where crunch matters (shaved or pickled) or heat just enough to lacquer the outside without turning the interior mealy.

Best Uses

  • thin shaved ribbons for crunchy tartines and salads
  • quick pickles/brines where the color holds and the bite stays lively
  • roasting or pan-searing for caramelized edges while keeping the interior snappy
  • showy garnishes: batons and half-moons on hot bowls or steak plates

Flavor Profile

clean peppery snap crisp, juicy flesh with a watermelon-sweet edge mildly earthy brassica bite stays firm with a glassy crunch when sliced

Kitchen Pairings

salted butter fresh dill yogurt lime juice goat cheese chili flakes

Frequently Asked Questions


What’s the most common disease or pest on Raphanus sativus (watermelon radish type), and how do I fix it fast?
Watch for flea beetles on radish leaves—they cause small shot-hole damage and can stunt young plants in warm weather. Use row cover over seedlings until flowering, and then apply insecticidal soap directly on the foliage at first sign of damage. If you see leaf spots or rotting roots, thin to improve airflow and water at the soil line to keep leaves dry.
How often should I water Raphanus sativus during the main growing phase?
Keep the top 2–3 inches of soil consistently evenly moist from germination through bulbing so the roots form quickly and don’t get woody or pithy. In typical home gardens, this usually means watering about 1 inch per week total, split into 2–3 waterings during hot or dry spells. Avoid letting the soil swing between very dry and waterlogged, which increases cracking and poor texture.
How can I tell when my Raphanus sativus is ready to harvest (around 65 days)?
Harvest when the root shoulders are well-developed and have reached the size listed for your packet, typically around 60–65 days from sowing. Check early by gently pulling one plant—roots should feel firm and smooth, not elongated and tough. Don’t wait too long past maturity, or the roots can become fibrous and strong-flavored.