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

02 Jul 09, brian (Australia - tropical climate)
i live on the tropic of capricorn line,,what type of lettuce would do the best in this area.. i was thinking of haveing a rised garden as the soil here is quite clayey..behind my shed (LARGE) is my choice as it get afternoon shade there..
30 Jun 09, valerie tasmania (Australia - cool/mountain climate)
nothing better than a great looking lettuce from the home garden.fresh clean and tasty to plant the best plants ,water and watch them devolep
25 Jun 09, SWAY (Australia - sub-tropical climate)
at school we are makeing a vegie garden and where planting lettuce . we think the best way to plant lettuce os to collect boxes and milk containers and plant the seeds in them
16 Jun 09, David (Australia - temperate climate)
Anyone know where I can get May Queen lettuce seeds in Australia???
13 Jun 09, sue (Australia - sub-tropical climate)
claudie, i plant lettuce seed directly into the ground, (quite shallow) with a scattering of seed raising mix below and above them. Just thin them out when they've grown a little. I plant them quite close because we eat mostly young leaves (continuous picking). I plant in dappled light, under trees........they are surviving frosts at the moment. Have fun planting!
14 May 09, David (Australia - temperate climate)
Claudie: I find a shallow tray works best (go to the supermarket and get a packet of 4 finger buns the plastic container is ideal) fill with soil, moisten, put the tray back together, put on the HWS check after 3 days. plant out when the second set of leaves appear. Keep moist!! Michelle: Sounds like your lettuce is going to seed. This happens when it is too hot and/or too dry. Jarred: choose cold climate veges! probably too late now for most things in canberra. You could try some peas and lettuce, get some frost blanket/fleece to put over them if it is going to frost o/nite.
13 May 09, Jarred (Australia - cool/mountain climate)
hi, are there any tips for growing vegies in general in canberra? im a first time grower too.
09 May 09, Tony R (Australia - sub-tropical climate)
I use the root part that often comes with supermarket lettuces. After we've eaten the bought lettuce, I just bung the root (with a leaf or two remaining) into the soil. Some don't take but most do. Free lettuces!
09 Apr 09, Michelle (Australia - cool/mountain climate)
Hi, My lettuce seem not be hearting, but growing straight up like little trees. Is this right? First time vegie gardener!
24 Mar 19, paul (Australia - sub-tropical climate)
When the root temperature of lettuce gets to 23 degrees the plant bolts - goes to seed. The plant does this as a survival mechanism. Something like, "Ouch, it's too hot! Quick, produce seeds before I die so my offspring will have a chance to grow in the future". That's lettuce. True also of coriander. Mulching the ground will help. Shadecloth will help. Taller/established plants nearby casting shadow is arguably best - see permaculture for design tips.
Showing 221 - 230 of 258 comments

Agriculture: Molybdenum deficiency is often only revealed in LOW YIELDS. Mo deficiency is the most widespread deficiency after Zinc & Boron. Excess molybdenum in pastures can give rise to animal health problems (in reality it is the nitrogen - Mo acts as bottle neck, so that plants can't uptake a lot of nitrogen -- in high Mo soils nitrogen uptake can be too high-- Ireland -- maybe investigate Denitrifying bacteria, microorganisms whose action results in the conversion of nitrates in soil to free atmospheric nitrogen - also useable in areas where nitrogen is washing into the lakes, rivers and streams). ********** Sometimes Molybdenum (Mo) deficiency can appear like a nitrogen deficiency ************** - it makes sense since Molybdenum (Mo) is required for plant assimilation of nitrogen (both atmosphere and soil). So you might be applying lots of nitrogen.... in situations where you have a molybdenum deficiency.... then just washing away your nitrogen into local rivers, lakes and streams.************* this will cause health problems in aquatic life ******************* Molybdenum is present in the lithosphere at average levels up to 2·3 mg kg−1 but can increase in concentration (300 mg kg−1) in shales that contain significant organic matter. The sources of high-molybdenum soils are Carboniferous black shales and limestones. Don't worry so much about the numbers - it's enough to know that Carboniferous black shales may contain 150 times more Mo than average (in the lithosphere). Molybdenum was the most abundant trace element present in the soluble and insoluble extractions of the wood-ash. ** also see banana peel compost which are high in molybdenum (Mo). *** Take away -- nitrogen is usually not the problem when you see symptoms of nitrogen deficiency -- it is more likely a Molybdenum deficiency.

- Celeste Archer

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