Growing Tomato

Lycopersicon esculentum : Solanaceae / the nightshade family

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

(Best months for growing Tomato in Canada - Zone 5a Temperate Warm Summer regions)

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • 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

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22 Oct 20, Gerald Swanson (USA - Zone 10a climate)
Can you grow tomatoes in the winter (Zone 10a)? Are there certain varieties better suited for winter months here?
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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.
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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.
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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)
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02 Oct 20, Ray Golimo (USA - Zone 10a climate)
When is the best time to grow tomatoes in zone 10A?
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23 Sep 20, Alex (Australia - temperate climate)
Hi there, can you please tell me what the best fertiliser to use on my tomatoes and how often, Kind regards Alex..
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27 Sep 20, (Australia - sub-tropical climate)
Any general fertiliser will do. Dig a hole 40cm deep and wide. Mix 3 hand fulls of fert into the loose soil. Put 3/4 of the soil back in the hole. Plant the seedling. When plant is 50cm high cut off some of the lower leaves and then fill the hole up with the rest of the soil. Always give a good watering 3 times a week
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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
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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.
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30 Aug 20, Pam hohenstreet (USA - Zone 6a climate)
What is the biggest tomato best grown here? What is the meatiest large canning tomato?
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Showing 111 - 120 of 809 comments
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More information is needed: for example amount of water... soil conditions. The MOST GENERIC, and probably most correct answer is LACK OF NUTRIENTS. Most people plant their plants (tomato) adding lots of compost and/or manure at the time of planting. The plant grows using the nutrients (some are washed away... maybe trees manage to confiscate some nutrients); but as the soil nutrition drops, the plant, still wanting to grow, starts to take nutrition from its lower leaves so it can grow leaves higher up. That is, it is deciding how to best used it's own self to maximize it chances of success; since it can't source the needed nutrition from the soil What you need to do is: ADD manure or compost or anything else you may have to put nutrition back into the soil. I rinse my coffee pot in the garden, I also try to drain things (like the water from soaking dried beans) into the garden. Manure/compost/nutrition (in any form) needs to be added at planting, middle of the season, and close to the end of the season to give that LAST burst of energy to bring the fruit/vegetables into full form. Don't feel like you need to spend a lot of money; get creative; in Canada we can stop by our local coffee shops and pick up the days used grinds for use in our gardens (free); you can add micro nutrients to your garden by filling a pail with water and adding a layer of rocks (rocks are minerals) stir and use this to water your plants. Left over tea bags, left over coffee grinds, stuff that you might rinse down the sink (food juices), blood from meat when you wash it before cooking it ..... anything like that all puts nutrition back in the soil.

- Celeste Archer

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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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