Growing Lettuce

lactuca sativa : Asteraceae / the daisy family

Jan F M A M J J A S O N Dec
  S S                  
      T T              
      P P P P          

(Best months for growing Lettuce in USA - Zone 5a regions)

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • P = Sow seed
  • Easy to grow. Sow in garden, or start in seed trays and plant out in 4-6 weeks.. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 46°F and 81°F. (Show °C/cm)
  • Space plants: 8 - 12 inches apart
  • Harvest in 8-12 weeks.
  • Compatible with (can grow beside): Carrots, Onions, Strawberries, Beets, Brassicas, Radish, Marigold, Borage, Chervil, Florence fennel, leeks.
  • Avoid growing close to: Parsley, Celery

Your comments and tips

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04 Dec 10, Lance (Australia - sub-tropical climate)
Why is my cos lettuce going to seed? there being goin really good and all of sudden bolted and gone to seed
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29 Jan 14, Latesha (New Zealand - sub-tropical climate)
Hi Ann, I had birds eating my lettuces too, I rigged up some string and silver plastic plates (or cans do) in and around the lettuces, it has a scarecrow affect and keeps the birds away. Be sure it isn't a possum as I have had them eat my lettuce too! Hi Lance, Lettuce has gone to seed as that is their main aim in life. In the summer months it is best to protect the lettuce from the sun and water regularly. Heat and lack of water causes the plant to stress and therefore it seeds as it thinks it might die. Some varieties of lettuce also just have a short life span, so I would suggest choosing varieties such as "four seasons".
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22 Jan 11, Daniel (Australia - temperate climate)
Hi Lance, Unless you are able to water Lettuce everyday (twice a day in a pot) during the warmer months then it will bolt. Lettuce is a much happier autumn - spring crop
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22 Jan 11, (New Zealand - sub-tropical climate)
Cos are definitely a cool weather variety but otherwise it depends on your climate whether lettuce will grow in the Summer.
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19 Nov 10, Bryan (Australia - temperate climate)
I have planted several perpetual lettuce but half of them are going to seed less than 2 weeks after we picked our first leaves. I understood with perpetual lettuce that we just harvested the lowest leaves. I assume even perpetual lettuce will seed eventually but is there a way I can prolong the life to more than the few weeks? Thank you
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17 Dec 12, John Allman (Australia - temperate climate)
Less sun
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02 Oct 10, Hannah (Australia - sub-tropical climate)
I am new to vegetable gardening. I have noticed thousands of red mites running around in the soil around my seedlings. They don't seem to be on the seedlings but I wonder if they may cause a problem. Any idea whether I need to control these mites and, if so, how?
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22 Apr 10, Tara (Australia - temperate climate)
I have planted some fancy mixed salad plants in a pot, 2 of the 6 died, but the other 4 look healthy but the leaves feel quite soggy rather than crisp, any reason for this? also when i water them the seem to flop even more and are better the next day. Do i just harvest the outside leaves slowly and will it re-grow?
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16 Apr 10, Rob (Australia - temperate climate)
My COS lettuce is booming - growing really thick really quick with lots of leaves. much better than my attempt to grow it in summer, where it shot up had a tall stem, seeded and few leaves.
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08 Apr 10, Keno (Australia - temperate climate)
Like Marcel....My iceberg lettuce doesn't seem to get a firm 'heart' just a bunch of loose leaves. I followed the seed packet and planting instructions.
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Showing 201 - 210 of 258 comments
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Most clear plastic is considered direct sunlight - unless there are special filters in the plastic. That is to say, if the only thing between your lettuce and the sun is regular clear plastic, you should be fine. As and FYI there are multiple categories: 1. Direct sunlight - some plants require direct sunlight on their leaves 2. BRIGHT shade; for example when I lived in a Condo, my balcony had no direct sunlight, but because the buildings beside my building had huge glass windows I had VERY bright shade and could grow most full sun potted plants. This also applies to living near the water, where the sun gets reflected-- MOST full sun plants are fine with REFLECTED light but not all. This could also be a a very sunny field, with shade cast from one building, chances are good that would be very bright shade 3. Sun/Shade with all its variations 4. Light shade and 5. Deep shade like the middle of a dense forest. I see no reason why you could not grow SOME of your veggies in the bright shade. I find that many plants labelled full sun, are not. For example: strawberries are generally labelled full sun. However, strawberries TEND to grow naturally in the shade of other plants: woodland or forest floor, in meadows shaded by other plants. I've noticed that any of my strawberries that get full sun tend to have burnt leaves, and the best yielding strawberry plants are in a cool predominately shady areas. I suspect that planting your plants that tend to bolt in a cooler shadier area would be very helpful. I've even grown cherry tomatoes in very bright shade with great success.

- Celeste Archer

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