Growing Tomato

Lycopersicon esculentum : Solanaceae / the nightshade family

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

(Best months for growing Tomato in USA - Zone 5a regions)

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • P = Sow seed
  • Grow 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 61°F and 95°F. (Show °C/cm)
  • Space plants: 16 - 24 inches apart
  • Harvest in 8-17 weeks.
  • Compatible with (can grow beside): Asparagus, Chervil,Carrot, Celery, Chives, Parsley, Marigold, Basil
  • Avoid growing close to: Rosemary, Potatoes, Fennel, Cucumber

Your comments and tips

23 Oct 20, colleen (USA - Zone 10b climate)
I believe I used to live in zone 10a when I lived in Los Angeles (Van Nuys). I *did* manage to grow some tomatoes over winter a couple of times, though I'm not sure it was worth it.
26 Oct 20, (USA - Zone 10a climate)
It wasn't worth it because you planted out of season. By the planting guide - plant late winter early spring for a summer crop.
26 Oct 20, colleen (USA - Zone 10b climate)
There was more to my reply, recommending varieties (esp Glacier) and alternative approaches, but I'm not sure what happened to it. Maybe I wrote too much info. (Gardenate : Part of the last sentence was missing in your previous reply)
02 Oct 20, Ray Golimo (USA - Zone 10a climate)
When is the best time to grow tomatoes in zone 10A?
06 Sep 20, Lou (USA - Zone 10a climate)
Is the July and August direct sun to much for tomato plants? My plants get to about 12 inches high then the leaves begin to shrivel up. Thanks, Lou
09 Sep 20, Anonymous (USA - Zone 10a climate)
Tomatoes need to be planted deep and then watered deep. A really good watering 3-4 times a week. If your climate is really hot and or dry then maybe plant a bit earlier to avoid the hottest part of summer.
30 Aug 20, Pam hohenstreet (USA - Zone 6a climate)
What is the biggest tomato best grown here? What is the meatiest large canning tomato?
31 Aug 20, Liz (USA - Zone 10b climate)
Google or use DuckDuckGo and search for 'large meaty tomato varieties' .
18 Aug 20, Jane (USA - Zone 9a climate)
What are the best tomatoes to grow in 9a to slice in salads and sandwiches?
19 Aug 20, (USA - Zone 6b climate)
Look at the different tomatoes on a seed selling website that might suit your climate. Most varieties would grow in your area probably. The more important thing is plant them the right time of year.
Showing 61 - 70 of 99 comments

Your Blossom end rot could be caused by the small pot. Try a 30L minimum for a tomato of up to 1m, and 50L+ tubs for anything taller. The problem in Northern NZ (Auckland upwards) in the intense heat, humidity, and constant winds on clear days that dry the soil. The soil seesaws from dry to wet, with us trying to compensate the loss three times a day, in small pots. You'll get excellent plants, but blossom end rot, and no useful fruit. I buy seeds from Southern suppliers who have clearly defined seasons in their districts. Here in West Auckland, the sun mid-spring onward is almost too strong for tomatoes (as noted in the comment from The Shore above), and the humidity is oppressive. They are part shade plants here, and 30L is absolute minimum for varieties that suppliers claim can be grown in 18L, or less. This year I'm using no less than 54L each plant, plus grass clipping mulch. So far so good. It's the only way to maintain soil a consistent moisture.

- Lee

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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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