Flashy Butter Gem

Family: Asteraceae Leafy Green

Planting Schedule

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Silken, buttery leaves unfurl in a luminous rosette, offering a crisp-yet-gentle crunch with a sweet, clean finish.

Flashy Butter Gem forms a compact butterhead at about 50 days, with tender, spoon-soft texture that stays pleasantly mild as it matures. Ideal for fresh salads and elegant sandwich-style layers, it’s also a standout for quick tosses and chilled garnishes where its delicate leaves shine.

Light: Part SunMaturity: 50 DaysHabit: Rosette

Botanical illustration of Flashy Butter Gem

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Flashy Butter Gem 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	May 4th	Jun 1st	Jul 21st – Aug 1st
Zone 2a	Apr 27th	May 25th	Jul 14th – Aug 29th
Zone 2b	Apr 17th	May 15th	Jul 4th – Aug 25th
Zone 3a	Apr 17th	May 15th	Jul 4th – Sep 1st
Zone 3b	Apr 21st	May 19th	Jul 8th – Sep 21st
Zone 4a	Apr 17th	May 15th	Jul 4th – Sep 24th
Zone 4b	Apr 15th	May 13th	Jul 2nd – Sep 27th
Zone 5a	Apr 10th	May 8th	Jun 27th – Sep 30th
Zone 5b	Apr 6th	May 4th	Jun 23rd – Oct 5th
Zone 6a	Apr 3rd	May 1st	Jun 20th – Oct 10th
Zone 6b	Mar 28th	Apr 25th	Jun 14th – Oct 16th
Zone 7a	Mar 23rd	Apr 20th	Jun 9th – Oct 20th
Zone 7b	Mar 13th	Apr 10th	May 30th – Oct 28th
Zone 8a	Mar 4th	Apr 1st	May 21st – Nov 5th
Zone 8b	Feb 23rd	Mar 23rd	May 12th – Nov 12th
Zone 9a	Feb 6th	Mar 6th	Apr 25th – Nov 26th
Zone 9b	Jan 12th	Feb 9th	Mar 31st – Dec 9th
Zone 10a	—	Oct 1st	Nov 20th – Feb 28th
Zone 10b	—	Oct 1st	Nov 20th – Feb 28th
Zone 11a	—	Oct 1st	Nov 20th – Feb 28th
Zone 11b	—	Oct 1st	Nov 20th – Feb 28th
Zone 12a	—	Oct 1st	Nov 20th – Feb 28th
Zone 12b	—	Oct 1st	Nov 20th – Feb 28th
Zone 13a	—	Oct 1st	Nov 20th – Feb 28th
Zone 13b	—	Oct 1st	Nov 20th – Feb 28th

Crop Details

Trait	Value
Days to Maturity	50
Sun Requirements	Part Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Surface
Germination Temp (°F)	70
Min Soil Temp (°F)	40
Min Night Temp (°F)	35
Harden Off (days)	5

Culinary Notes

Chef's Note

Flashy Butter Gem is built for the spoon-soft bite: its tender leaves carry a sweet, mild snap without turning bitter as it matures. Treat it gently—dress or season right before eating so it stays luminous and not watery.

Best Uses

fresh salads where you want delicate leaves to stay intact under dressing
butterleaf sandwich layering (won’t tear easily; stays tender even slightly warmed)
quick chilled tosses with vinaigrettes where you want a light, snappy bite
elegant garnishes—use as the base so it doesn’t overwhelm the dish

Flavor Profile

buttery, gentle crunch clean, sweet, mild green flavor spoon-soft tender leaves with a crisp edge subtle milky finish

Kitchen Pairings

lemon vinaigrette balsamic glaze olive oil grilled chicken feta cheese crusty sourdough

Frequently Asked Questions

Lactuca sativa (lettuce) — what pest or disease issue should I watch for, and how do I fix it?

Watch for downy mildew (often shows as yellow patches on leaves with grayish growth underneath) and aphids, which cluster on tender new growth. Improve airflow and avoid wetting leaves when you water; remove and discard badly infected leaves to slow spread. For aphids, rinse plants with a strong jet of water and, if needed, spot-treat with insecticidal soap according to the label.

How often should I water Lactuca sativa during the main growing phase, and what soil moisture level should I maintain?

During active leaf growth (roughly weeks 2–6), keep the soil evenly moist—water when the top 1 inch feels dry. Aim for consistent moisture rather than soaking and drying, because irregular watering can lead to bitterness and premature bolting in lettuce. If you’re growing in hot part-sun conditions, check moisture 1–2 times per week and water more frequently only if the top inch dries out.

How can I tell when my Lactuca sativa ‘Flashy Butter Gem’ is ready to harvest?

Harvest when heads/rosettes are firm and filled out, typically around 50 days from sowing, with leaves that are a mature size for eating. If leaves pull easily from the center or the plant has started to stretch upward, it’s getting ready to bolt and should be harvested immediately. For best eating quality, harvest in the cool part of the day and cut at the base just above the soil line.