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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09 Oct 14, Marzi (Australia - temperate climate)
If it is the coral type of lettuce and not iceberg (those with a firm heart) then you can pick the outer leaves and it will keep producing until time to bolt (seed)
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11 Sep 14, Peter (Australia - sub-tropical climate)
My wonderful 80 odd yr old neighbour gave me this tip and works really well. When washing your lettice add salt to the water and snalls ect leave much quicker. Its surprising whats left in the water after doing this.
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12 Jul 14, sherron hardin (USA - Zone 5a climate)
I planted within the time frame as your chat suggested. My lettuce has gotten bitter as it has grown. I have it in full sun. I don't know if that is the reason but it would seem on the second growing it became a little bitter and gets worse as it grows. Any suggestions? Thanks for your help
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29 May 14, (Australia - temperate climate)
I have planted some crops (based on your advice) and was wondering what is eating at my dwarf cos lettuce and rocket ? I see no evidence of grubs or snails. Can you please help ?
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04 Sep 14, Frances (Australia - temperate climate)
Might be mice/rats. My iceberg seems to be eaten by these. Or do you have rabbits in the area?
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23 May 15, Greenthumb (Australia - temperate climate)
When you say your lettuce didn't make it, did it bolt? or not grow at all?, you might need to check your soil PH as lettuce is quite easy to grow....... there is no chance of every starting too big, I wish my vegie garden was double the size. I would check your soil and make sure that you don't under or over water.
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04 May 14, Imthiaz Hoosen (South Africa - Summer rainfall climate)
Hi I am assisting a community garden project in Grasmere, South of Johannesburg. Please advise if lettuce can be planted in May. Thank you
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10 Oct 16, Roger Chicken (South Africa - Summer rainfall climate)
Hi Imthiaz, just picked up your question today and thought I could provide some clarification, especially as we are in the same area.I Find that lettuce love the cooler months here, and will take some light frost. They tend to "bolt" in the hot summer months and do better in broken shade during this time. If you plant seeds in trays at the beginning of Feb. you can start planting out seedlings in early March and continue through to Oct. / Nov.
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06 Mar 14, Sue (Australia - sub-tropical climate)
All my latest cos lettuces growth seemed to be stunted. It was a very hot day the day after planting and they looked sick, but 3 weeks on and still very little growth even though they've had a fertilising.
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28 Mar 14, janice (Australia - temperate climate)
Maybe try sowing some more seeds now, it was fairly hot earlier in the month. It likes 10-16C.
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Showing 131 - 140 of 258 comments
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To increase the levels of Molybdenum (Mo, also called Molly) in your soils -- wood ash (from a fireplace, firepit, or barbeque) can be incorporated into the soil. Alternatively, Banana peels are an excellent source of Moly. Animal manure tends to (grass/grain/vegetable feeders) tend to have a decent amount of Moly in their manure. If all of these are out of reach, perhaps try incorporating wood chips/bark mulch in your garden. You can make bark chip paths, use the paths, then the following year when the chips are broken down mix them into the soil. OR -- just mix the wood chips (bark, mulch, whatever) directly into the soil. As the wood is breaking down it takes a lot of nitrogen. I would expect to find Moly in leaf mulch - but have not found any reliable sources that have stated this as a fact. If you choose to use chemical forms of Moly remember that this is a TRACE element - VERY little is needed and over application can result in a OTHER problems. Staying organic almost guarantees you will not over apply. If you live in an area where wood burning stoves and fireplaces where common for heating (pre- electric fireplaces and stoves) - and you know people old enough to have been around when wood ash was common in the garden (there was no place else to put it) - they can tell you how amazing the gardens where back then.

- Celeste Archer

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