Sierra Batavian Lettuce - Organic

seeds
Lactuca sativa
(50 days) Open pollinated. Summer lettuce aficionados can rejoice that we again have a fresh crop of organic seed for Sierra, a red-tinged French batavian renowned for its extraordinary seedling vigor, resistance to TB and reluctance to bolt even in midsummer heat. Revered among market growers, it especially stands out in late July when others have rotted or bolted. We have harvested spring-planted marketable specimens as late as Aug. 6. Crispy and tasty leaves on a compact upright form. Developed by Vilmorin in 1992. Resists DM, tolerates LMV.

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① Small seed farmers including Fedco staff
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OGThis item is certified organic

2907 Sierra - Organic

A: 1g
$3.75
sold out, substitute 2905.
B: 4g
$7.00
sold out, substitute 2905.
C: 14g
$13.50
sold out, substitute 2905.
D: 28g
$21.50
sold out, substitute 2905.
E: 112g
$63.00
sold out, substitute 2905.
K: 448g
$224.00
sold out, substitute 2905.

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Seed Starting Supplies
Quick Details
Hybrid Status
open pollinated
Days to Maturity
50 days
Compare

Compare with other Batavian Lettuce

Variety Product Type Hybrid Status Days to Maturity
Brune d’Hiver
Organic 		seeds open pollinated 65 days
Cardinale
Organic 		seeds open pollinated 48 days
Sierra
Organic 		seeds open pollinated 50 days
Concept
Organic 		seeds open pollinated 51 days
Pablo
Organic 		seeds open pollinated 68 days
Anuenue
Organic 		seeds open pollinated 72 days
Shipping

From early May through October 31, 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.

Additional Information

Batavian

Also called Summer Crisp or French Crisp, Batavians combine the crispness and heat tolerance of Iceberg with the open habit, sweetness and tenderness of leaf types. Vigorous growth, large stature, great field holding, slow bolting and wonderful flavor make this class an excellent summer harvest choice in the fluctuant northeastern climate. Good hot-weather germination.

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.