Growing Lettuce

lactuca sativa : Asteraceae / the daisy family

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

(Best months for growing Lettuce in Australia - tropical 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
  • Lettuce table-ready
  • Lettuce seedlings

Lettuce offer a range of shapes, sizes and colours but they are all easy to grow.

Choose a variety marked on the seed packet as suitable for the time of year as some do badly in the very hot months.

Try to provide some shade to prevent them 'bolting' to flower and seed in the hottest months.

Sow in rows and use thinnings as small salad greens.

Ideal crop for succession planting.

Lettuce are shallow rooted so water daily in hot or dry weather to prevent bitter flavour. and bolting.

Culinary hints - cooking and eating Lettuce

Wash well, spin or shake dry and use in salads and sandwiches

Your comments and tips

18 Oct 23, lukas (South Africa - Summer rainfall climate)
What is the best size for a letuce seedling to be planted out in the garden.
22 Nov 23, (South Africa - Summer rainfall climate)
When they have 6-8 new leaves. Keep them protected from the sun for a couple of days. Plant in the late afternoon.
01 Feb 22, Raymond Rich (South Africa - Summer rainfall climate)
Will it be to late to sow Lettuce seed in Johannesburg region in February. Have a well protected area from early cold and can provide sufficient water when rainfall reduces from March.
02 Feb 22, Mike (Australia - sub-tropical climate)
Try it.
30 Apr 20, Keith (South Africa - Summer rainfall climate)
Hi I punnet my lettuce but the turn colour the next day. They start getting brown especially when I cut my lettuce on a rainy day and pack them. What I'm i doing wrong ?
06 May 20, Anon (South Africa - Summer rainfall climate)
When you cut lettuce dry it out before putting in a bag and into the fridge. A spinning colander is best.
08 Aug 18, Ntokozo ntuli (South Africa - Dry summer sub-tropical climate)
Is it not good to plant iceberg lettuce in summer? Please give me some advices on iceberg lettuce.
15 Jun 18, Peggy (South Africa - Semi-arid climate)
I'm interested in the production of lettuce so I want to know which is the best method for planting. Using hydroponics or soil media and why?
12 Feb 18, zuelly mbhele (South Africa - Dry summer sub-tropical climate)
i would love to know if no till method of planting would be efficient in the growing of lettuce.
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.
Showing 1 - 10 of 20 comments

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. Gardenate 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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