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

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
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".
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
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.
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
17 Dec 12, John Allman (Australia - temperate climate)
Less sun
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?
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?
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.
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.
Showing 201 - 210 of 258 comments

Your lettuce is probably getting too much sun or its too dry... try putting them in a more shady spot and watering plenty?

- May

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