Skip to main content
Problems with signing in?

We use your email to save the items in your cart, and occasionally send notifications about your cart contents. We will never sell your email address.

Kagraner Sommer Butterhead Lettuce

seeds
Choose an item size to add to your cart.
$2.75
Item: 2839-A
$3.30
Item: 2839-B
$5.85
Item: 2839-C
$9.00
Item: 2839-D
$19.50
Item: 2839-E
Lactuca sativa
(58 days) Open pollinated.

Elegant light green 10–12" butterhead of exceptional tender succulence, especially given the warm early-to-mid July slot when it matures. “For years has been our main summer lettuce. A great heat resister,” lauds Anne Elder. The satiny heads are wound less tight, but are lusher in flavor than Buttercrunch. In our trials, the secret snackers always wish we had planted just a few more.

Supplier Transparency:
② Family-owned companies or cooperatives, domestic and foreign
ships year-round
Quick Details
Hybrid Status
open pollinated
Days to Maturity
58 days
Lifecycle
annual
Color
light green
Compare
Compare with other Butterhead Lettuce
Variety Product Type Hybrid Status Days to Maturity Lifecycle Color
Tom Thumb seeds open pollinated 46 days annual green
Bronze Mignonette seeds open pollinated 46 days annual bronze-tinged green
Garnet Butter Gem
Organic 		seeds open pollinated 48 days annual red-tinged green
Carmona
Organic 		seeds open pollinated 50 days annual red-tinged green
Buttercrunch seeds open pollinated 50 days annual dark green
Buttercrunch
Organic 		seeds open pollinated 50 days annual dark green
North Pole
Organic 		seeds open pollinated 51 days annual lime green
Optima
Organic 		seeds open pollinated 52 days annual dark green
Winter Marvel
Organic 		seeds open pollinated 52 days annual light green
Pirat
Organic 		seeds open pollinated 55 days annual brown-speckled green
Speckled Amish
Organic 		seeds open pollinated 55 days annual maroon-speckled green
Sweet Valentine
Organic 		seeds open pollinated 56 days annual bronzed green
Kagraner Sommer seeds open pollinated 58 days annual light green
Nancy
Organic 		seeds open pollinated 58 days annual medium green
Capitan
Organic 		seeds open pollinated 62 days annual light green
Additional Information

Lettuce

  • 700–1100 seeds/g.
  • Days to maturity are from emergence after direct sowing; for transplants, subtract 20 days.

Culture: Direct seed outdoors as soon as ground can be worked and repeat every 2 weeks for continuous supply. Or start indoors in March and at regular intervals thereafter for early transplanted successions. Optimal germination temperature range 40–70° though many varieties won’t germinate in soil temps above 75° and most shut down above 80°. Thin sowings frequently and ruthlessly to a final distance of 1' for full heads. Heavy nitrogen feeders.

Hardy. All save icebergs tolerate heavy frost. Fall and overwintered harvests are becoming standard practice. For summer harvest, select varieties carefully: bolting, bottom rot and tipburn are problems if a variety can’t take the heat! Using shade cloth can keep lettuce tender and sweet longer into summer. Sesquiterpene lactones produced in the latex render lettuce bitter when it bolts.

Saving Seed: Saving lettuce seed is easy! Leave spring-planted lettuce heads to bolt. Flowers will become white tufted seeds. Once dry on stalk, rub seeds off the plant into a paper bag. To ensure true-to-type seed, separate lettuce varieties by 10 feet.

Diseases:

  • BOR: Bottom Rot
  • DM: Downy Mildew
  • LMV: Lettuce Mosaic Virus
  • PM: Powdery Mildew
  • SC: Sclerotinia
  • TB: Tipburn
  • X: Xanthemonas

Pest: Aster Leafhopper (vector for Aster Yellows disease)
Cultural controls: control perennial broadleaf weeds near lettuce plantings, plow lettuce fields immediately after harvest.

Pest: Slug
Cultural controls: avoid mulch or nearby grassy areas.
Material: Sluggo

Disease: Bottom Rot
Cultural controls: rotate with grass-family green manures, plant in well-drained soil or on raised beds, more upright varieties escape infection.

Major Diseases: Downy Mildew, Grey Mold, White Mold
Cultural controls: rotation, reduce duration of leaf wetness, plant parallel to prevailing winds, use wide spacing, control weeds, use well-drained fields in spring and fall.
Material controls: MilStop

Germination Testing

For the latest results of our germination tests, please see the germination page.

Our Seeds are Non-GMO

Non GMO

All of our seeds are non-GMO, and free of neonicotinoids and fungicides. Fedco is one of the original companies to sign the Safe Seed Pledge.

Shipping

From early May through mid-December, items shipping from our garden seeds warehouse ship twice a week, usually Tuesday and Thursday. For quickest turnaround time order online by noon Monday or Wednesday.