Mirlo Butter Lettuce Seeds (Organic)

Mirlo Butter Lettuce Seeds (Organic)

Peaceful Valley

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Lettuce - Mirlo Butter - Lactuca sativa

Hardy Annual The bright green color makes this variety look fresher than the traditional light green Boston types. Widely adaptable and performs well in spring, summer, and fall. High resistance to downy mildew, intermediate resistance to lettuce mosaic virus.

Did You Know? Lettuce is a good source of vitamin A.

Soil Temperature: 60-68°F
Planting Depth: 1/8-1/4"
Germination: 7-14 Days
Height At Maturity: 8-12"
Days to Maturity: 52 Days
Spacing After Thinning: 8-10"
Approx Seeds per Pack: 250 Seeds



  • Container Compatible
  • Open-Pollinated



USDA Growing Zone: Certified Organic Product
Growth Habit : Upright
Life Cycle : Hardy Annual
Planting Time : Fall
Planting Time : Spring
Planting Time : Summer
Seed Unit Sizes : Seed Pack
Starting Location : Direct Sow
Starting Location : Start Indoors & Transplant
Sun Requirements : Full Sun/Part Sun

Planting & Care

Soil & Water: Add plenty of compost to the soil to encourage rapid growth. Water evenly and moderately to prevent bitterness.

Planting & Growing: Sow direct or start indoors in flats about 3-4 weeks before transplanting outdoors. Keep soil cool, below 75°F, until germinated. Harden off transplants before planting outdoors. Succession plant every 3 weeks for a continuous supply. Lettuce likes full sun except in hot summer climates where it prefers some shade, especially in the afternoon. Use shade cloth in summer to keep plants cooler.

Harvesting & Storage: Harvest the entire plant when mature, but still young and crisp. All lettuces are at their best when picked as needed and used immediately.



Peaceful Valley Farm & Garden Supply brand vegetable seeds are guaranteed to germinate. Once the seeds have sprouted, please understand that Peaceful Valley cannot be held responsible for the many uncontrollable growing and climatic conditions that must be met to ensure the success of your crop(s).

Useful Information


SEEDTIME FULFILLED SHIPPING (items fulfilled by Seedtime)
  • We ship to the USA only.
  • We offer free shipping on all products fulfilled by Seedtime with an order value over $49
  • Orders placed before 12pm Eastern Time ship the same day. Orders after 12pm Eastern Time will ship the next business day. Timing applies to orders in the lower 48 States.
  • Standard delivery time is 3-7 business days.
  • Easy 30 day returns or exchanges.

Your satisfaction means the world to us which is why all of your orders are backed with our 30 Day Satisfaction Guarantee. Either you love it, or you can return it for an equal exchange or get a full refund. Just send us a support ticket to support@seedtime.us and we'll be glad to help you with your return.

Other Vendor Fulfilled Shipping

We offer products that are fulfilled by other vendors with the following rates:

The Farm On Central: $9 flat rate

Farmers Friend: Free shipping to contiguous USA

Peaceful Valley: $5 for up to 5 seed packets and then free shipping on seed packets after that. $10.99 flat rate for bulk seeds/larger weight items.


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Mirlo Butter Lettuce Seeds (Organic)

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