SproutSmart
SproutSmart Intelligent Garden Sowing

Red Buttercos

Lettuce

Planting Schedule

Add Red Buttercos to your garden to build a schedule and get reminders.
Botanical illustration of Red Buttercos
50d to harvest

Velvety, butter-soft leaves unfurl in a compact rosette, colored a rich garnet-red that deepens toward the outer folds. Red Buttercos forms a tender, spoonable heart with a mild, sweet crunch—ideal for fresh salads and elegant garnishes, and it shines when lightly dressed or layered in cool-season platters. At about 50 days, it’s a satisfying choice for gardeners who want a showy, garden-fresh butterhead with a delicate texture and refreshing flavor.

Crop Dates

MilestoneDate
Start IndoorsApr 17th
Last FrostMay 15th
Transplant / Sow OutdoorsMay 15th
Harvest BeginsJul 4th
Harvest EndsSep 1st

Crop Details

TraitValue
Days to Maturity50
Sun RequirementsFull SunFull sun
Growth HabitRosette
Support NeededNone
Planting DepthSurface
Germination Temp (°F)45
Min Soil Temp (°F)40
Min Night Temp (°F)35
Harden Off (days)6

Frequently Asked Questions


What pest or disease is most likely to hit Lactuca sativa (red butterhead type), and how do I control it?
Watch for aphids and slugs/snails on tender lettuce leaves, especially in warm, humid stretches. Rinse aphids off with a strong spray and remove heavily infested leaves; for slugs, hand-pick at dusk and use a copper barrier or iron-phosphate bait where it can’t reach pets. Also keep airflow up and water at soil level to reduce risk of fungal leaf spots and downy mildew in dense stands.
How can I tell when Lactuca sativa is ready to harvest?
Harvest when the heads feel firm and leaves are fully expanded for a butterhead type, usually around 50 days from sowing for your growing conditions. Use a light squeeze—if the center gives only slightly and the outer leaves are crisp, cut the head at the base in the morning for best texture. Don’t wait until the plant bolts (flower stalk starts); once it bolts, leaf quality drops quickly.
Botanical illustration of Red Buttercos

Velvety, butter-soft leaves unfurl in a compact rosette, colored a rich garnet-red that deepens toward the outer folds. Red Buttercos forms a tender, spoonable heart with a mild, sweet crunch—ideal for fresh salads and elegant garnishes, and it shines when lightly dressed or layered in cool-season platters. At about 50 days, it’s a satisfying choice for gardeners who want a showy, garden-fresh butterhead with a delicate texture and refreshing flavor.