Growing Lettuce

lactuca sativa : Asteraceae / the daisy family

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

(Best months for growing Lettuce in New Zealand - cool/mountain regions)

  • 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 Jun 17, Sue (South Africa - Summer rainfall climate)
The darkest lettuce I know of is Lolla Rossa Darkness, it is actually a very deep red, loose leaf variety. The Seed Vault (www.theseedvault.co.za) has a picture of it as the main picture under lettuce. The only other one that it could possibly be is Red Oakleaf which is also quite dark. In my experience the better the soil the darker the colour presents on the lettuce (or deeper / brighter if it is a green lettuce).
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11 May 17, jicinta (Australia - temperate climate)
what are the ideal condtions to grow lettuce
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11 May 17, Sean (Australia - temperate climate)
Lettuces thrive in cooler zones. A good supply of old manure or compost will keep them moving and a consistent water supply is a must. Sowing the seed direct, as thinly as possible, will result in better lettuce but this may not always be practical. Watch for slugs as they love them and will hide in the base of the leaves. Sparrows can sometimes be a problem as well.
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22 Mar 17, Brooke (Australia - cool/mountain climate)
Can I grow lettuce in freezing conditions that go to -10 degrees celcius?
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23 Mar 17, John (Australia - temperate climate)
Lettuces prefer cooler weather and can stand a light frost. If the frosts are heavy and continuous the freeze will cause the leaves to break down and become necrotic (rot). Butterhead and Romaine type lettuces will tolerate much cooler conditions than the other varieties. You ccould cover them with old towels, etc but prolonges frosts would stil cause damage. Try growing lettuce as micro-greens on cotton wool or paper towel in a tray dampened with water. You could grow them inside and harvest the little leaves by snipping with scissors. All the best.
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15 Mar 17, Nicki (Australia - temperate climate)
Can spinach and lettuce be grown in the same bed together?
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04 Mar 17, Bev Ayson (South Africa - Semi-arid climate)
My lettuce are growing well except The round head is not forming. I have taken a piece of cotton and tied all the outer leaves lightly together and now I see the inside is forming nicely. What am I doing wrong.
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05 Mar 17, John (Australia - temperate climate)
Sorry you're having trouble with your lettuces. Check whether it is the right variety for the time of year. Unsuitable varieties for the time of year will often stay open and go to seed. Lettuces like cooler conditions generally but there are a number of varieties developed for the hotter months. Warer stress can also cause this even if it was in the punnet before purchase. Trust this helps, sorry I can't help you more.
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04 Feb 17, Gail (Australia - temperate climate)
I have planted a variety of lettuce from seed. From about 15 seeds planted only 1 is starting to grow. I can't see anything eating the shoots could there be bugs in the ground eating the seedling before it shoots?
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04 Feb 17, John (Australia - temperate climate)
Lettuce and other fine seed like carrot needs consistent moisture to germinate as the seeds are fine. A notorious thief of lettuce and carrot seeds are ants! Sprinkle pepper along the row when sowing the seed, this is an excellent deterrent. Trust this helps.
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Showing 81 - 90 of 259 comments
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Hi Tara, the planting guide says you can plant lettuce in the garden now but how well it does may depend on where you are located and how hot your weather will be. I had a similar dilemma because I live in SW Qld and we have really hot long summers. I tried sowing some seeds in January but they didn't germinate and I read in a gardening book that they will not germinate in temps over 28 degrees. The same book also mentioned that it is possible to germinate lettuces in the fridge so that is what I have done :-D. I now have cute little lettuce seedlings almost ready to plant into the garden (2 loose leaf varieties) and after a couple of cooler days in the last week I have found some of my previous lettuces have self seeded and I have more plants coming up in the garden! I guess i will find out if they survive or not! The biggest danger in the hot temps is that the plants may go to seed quickly meaning less lettuce to eat. If planting lettuces this time of year it is important to give them plenty of shade and lots of water on the hot days. If the plants still go to seed quickly it may be just too hot for them and you can learn for next year. As far as which varieties to choose you should avoid heading lettuces like icebergs because I have heard you won't get a good head on them if it is too hot. I am not an expert - I have only been growing veg for about a year - but you should consider doing what I did and buy some mixed lettuce seedlings from your nearest garden shop and keeping the seeds from the varieties you like the best! Alternatively if any of your friends grow their own you can ask them for a taste or any spare seeds. If you already have some seeds you can always give them a try and see what works best!! If there are any more experienced gardeners out there feel free to correct me if I am wrong!

- Kt

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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. GardenGrow is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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