Kagraner Sommer

Family: Asteraceae Leafy Green

Planting Schedule

Provide your location or planting zone to unlock dates and add Kagraner Sommer to a garden.

Crisp, buttery leaves unfurl in a soft, luminous rosette—Kagraner Sommer butterhead lettuce is prized for its tender, sweet flavor and delicate, velvety texture.

At maturity, the heads form a gentle, spoon-shaped heart with pale green to creamy tones that feel as good as they taste. Grow it for fresh salads and elegant garnishes, or let its mild, mellow character shine in quick summer bowls and light sauces.

Light: Part SunMaturity: 55 DaysHabit: Rosette

Botanical illustration of Kagraner Sommer

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

Crop Details

Trait	Value
Days to Maturity	55
Sun Requirements	Part Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	40
Min Night Temp (°F)	35
Harden Off (days)	6

Culinary Notes

Chef's Note

Butterhead hearts like this Kagraner Sommer are built for the luxury of a spoonable salad—sweet, tender leaves that don’t turn bitter or stringy. Keep dressings light and add at the last second so the rosette stays silky, crisp, and luminous rather than collapsing into water.

Best Uses

tear-and-toss salads where the leaves keep their spoonable shape under light dressing
quick summer bowls with warm proteins—lettuce added at the end so it stays crisp
gentle, brief wilted applications (steam-kissed greens) to avoid turning watery
elegant garnishes: spoon-shaped hearts for plates that need soft volume

Flavor Profile

tender, sweet bite buttery, velvety leaf texture mild, mellow herbaceousness delicate crunch without harshness

Kitchen Pairings

lemon extra-virgin olive oil feta goat cheese grilled chicken hard-boiled egg

Frequently Asked Questions

What pest or disease is most likely on Lactuca sativa (Kagraner Sommer), and how do I stop it?

Lettuce commonly suffers from downy mildew and leaf spot, especially when nights are cool and leaves stay wet. Water the soil at the base in the morning and give plants spacing for airflow; remove and discard any badly spotted leaves. If it keeps spreading, use a labeled fungicide appropriate for lettuce and follow the full reapplication interval on the label.

How often should I water Kagraner Sommer during the main growing phase (around weeks 3–6)?

Keep the top 1–2 inches of soil evenly moist so leaves grow tender and fast, aiming for consistent moisture rather than cycles of drying and soaking. In typical home beds, that often means watering about 1–2 times per week, increasing to more frequent watering during warm spells. Stop short of waterlogged soil—lettuce in soggy ground is prone to rot and disease.

How can I tell when Kagraner Sommer is ready to harvest at about 55 days?

Harvest when heads/rosettes are fully sized for your thinning plan and outer leaves are crisp and firm, usually around 55 days from sowing. For leaf-style lettuce, pick outer leaves once they’re large enough to eat; don’t wait until the plant bolts or becomes bitter. If you see a tall central stalk or leaf bitterness increases, harvest immediately or the quality will drop fast.