SproutSmart
SproutSmart Intelligent Garden Sowing

Flash Collards

Planting Schedule

Add Flash Collards to your garden to build a schedule and get reminders.

Sink your senses into Flash Collards’ crisp, cool-green leaves—tender yet substantial, with a lively snap and a gently sweet, savory depth.

At about 55 days, this variety forms an upright, compact rosette of richly textured foliage that stays attractive and harvest-ready for repeat picking. Ideal for bold, leaf-forward dishes and hearty greens preparations, Flash Collards shines when you want flavor that’s bright, satisfying, and beautifully consistent from garden to table.

Light: Full SunMaturity: 55 DaysHabit: Rosette

Botanical illustration of Flash Collards

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

MilestoneDate
Start IndoorsMar 28th
Last FrostApr 25th
Transplant / Sow OutdoorsApr 25th
Harvest BeginsJun 19th
Harvest EndsOct 16th

Crop Details

TraitValue
Days to Maturity55
Sun RequirementsFull SunFull sun
Growth HabitRosette
Support NeededNone
Planting DepthNormal
Germination Temp (°F)45
Min Soil Temp (°F)40
Min Night Temp (°F)28
Harden Off (days)6

Culinary Notes


Chef's Note

Flash Collards hold their structure when heat hits—so you can cook them hot and fast without turning them to sad, slippery greens. The mild sweetness makes them especially persuasive with sharp acids and smoky, salty proteins, where the leaf stays bright instead of muted.

Best Uses

  • quick sauté with high-heat finish (keeps the snap)
  • steam or braise just until glossy and tender
  • chopped into hot skillet greens with a tangy pan sauce
  • raw or lightly dressed ribbons for crunchy bite

Flavor Profile

crisp, cool-green snap gently sweet, savory depth tender-but-substantial leaf texture

Kitchen Pairings

lemon olive oil smoked ham vinegar mustard

Frequently Asked Questions


What pests or diseases commonly hit Brassica oleracea var. acephala (collards like 'Flash Collards') and what should I do?
Watch for cabbage worms and aphids, which chew holes in leaves and leave sticky residue; hand-pick caterpillars early and spray plants with insecticidal soap, repeating as needed. For disease, collards are prone to downy mildew in cool, wet weather—improve airflow by spacing plants and avoid watering the leaves; if you see fuzzy gray-green growth on the underside, remove affected leaves promptly to slow spread.
How often should I water Brassica oleracea var. acephala during the main growing phase (around days 15–45)?
Keep the soil evenly moist, not soggy: water when the top 1 inch feels dry, typically about 1–2 times per week depending on heat and rainfall. Aim for deep watering that wets the root zone, since collards form steady growth over ~55 days and uneven moisture can lead to smaller leaves and stress.
How can I tell when 'Flash Collards' are ready to harvest?
Harvest when leaves are fully sized for your desired size and feel firm rather than limp—typically around 55 days from transplanting/sowing as your garden schedule indicates. For best eating, start picking outer leaves first once they’re large and mature, leaving the inner core to keep producing for additional cuttings.