SproutSmart
SproutSmart Intelligent Garden Sowing

Flashy Butter Oak

Lettuce
Botanical illustration of Flashy Butter Oak
🌱 50d to harvest Rosette

Velvety, buttery leaves unfurl in a luminous rosette—Flashy Butter Oak brings a rich, tender crunch with a softly sweet, fresh-gr…

Planting Schedule

Add Flashy Butter Oak to your garden to build a schedule and get reminders.

Crop Dates

MilestoneDate
Start IndoorsMar 28th
Last FrostApr 25th
Transplant / Sow OutdoorsApr 18th
Harvest BeginsJun 7th
Harvest EndsOct 16th

Crop Details

TraitValue
Days to Maturity50
Sun RequirementsPart SunPartial sun
Growth HabitRosette
Support NeededNone
Planting DepthSurface
Germination Temp (°F)65
Min Soil Temp (°F)40
Min Night Temp (°F)32
Harden Off (days)6

Frequently Asked Questions


What pests or diseases commonly hit Lactuca sativa (lettuce) and how can I prevent and treat them?
Watch for aphids and slugs/snails on tender lettuce leaves; they often appear as distorted growth, holes, or sticky residue. Rinse aphids off with a strong stream of water and use insecticidal soap if colonies persist, while hand-picking slugs at dusk and setting beer traps or copper barriers protects young plants. Keep foliage dry with morning watering and spaced plants to reduce downy mildew risk, which shows as yellow patches on top with fuzzy growth underneath.
How often should I water Lactuca sativa during the main growing phase to keep it crisp and prevent problems?
During active leaf growth, keep the soil consistently evenly moist—aim for about 1 inch of water per week, then adjust so the top 1 inch of soil stays damp but not soggy. Water at the base in the morning to avoid wet leaves, especially when temperatures rise and lettuce is at higher risk of tip-burn and mildew. If lettuce starts to feel dry or wilts between waterings, increase frequency (smaller, more regular soakings) rather than one heavy watering.
How do I tell when Flashy Butter Oak lettuce (Lactuca sativa) is ready to harvest?
Harvest when heads are firm (for romaine-type habit) or when leaf clusters are full and reach the typical size for your bed—usually around 50 days from sowing. For the best texture, pick leaves when they’re crisp and tender, before the plant bolts; signs include rapid stem elongation and leaf bitterness. Use scissors to cut outer leaves first (letting the center continue) or harvest the whole plant once it’s fully developed.
Botanical illustration of Flashy Butter Oak

Velvety, buttery leaves unfurl in a luminous rosette—Flashy Butter Oak brings a rich, tender crunch with a softly sweet, fresh-green flavor. At maturity (about 50 days), its heads form a compact, spoon-shaped butterhead with a crisp yet yielding texture that stays pleasantly delicate. Ideal for garden-fresh salads and elegant platters, Flashy Butter Oak is a standout choice when you want beauty, tenderness, and a clean, bright bite in every serving.

Sowing Tips

Transplant Conditions

Wait until soil reaches 40°F and nights stay above 32°F before moving outdoors. Harden off for 6 days first.

Expert Note

Start indoors for a head start, but transplant only when nights are consistently above ~35°F to avoid slow, stunted growth in cold snaps.