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

13 Oct 23, Tim (USA - Zone 10a climate)
Great advice
04 Jul 23, Mary Terrill (USA - Zone 9b climate)
What do I need to make a home made good potting soil for grow bags, to grow vegetables?
11 Sep 23, Sid (USA - Zone 10b climate)
A simple potting soil can be made with peat or Coco coir, perlite and any compost in a 1:1:1 ratio. You can use steer manure from lowes or home depot since it is pretty cheap or if your city has a composting program use that for free compost. It's a good idea to add 1-2 cups of fertilizer per cubic foot of soil you prepare with the above recipe. If you want to keep it simple, but a 10-10-10 balanced fertilized and add 2 cups per cubic foot. If you want a more detailed and balanced soil recipe I recommend checking out Buildasoil for info https://buildasoil.com/blogs/news/17627464-build-a-soil-from-scratch-in-2-simple-steps%20
02 Jan 23, Irma (USA - Zone 9b climate)
I always gets my seeds From Burpee’s online. They have always yielded great amount of tomatoes.
14 Dec 22, DENNIS (USA - Zone 10a climate)
I'm looking for a large juicy tomato to just plain eat whole. Looking for a good producer. Can't seem to find a recommendation for my area!
18 Dec 22, (Australia - sub-tropical climate)
Google big tomato varieties. Most crops will grow from cold weather to hot weather, just have to plant at the right time of year for your area.
31 May 22, Iris Sullivan (USA - Zone 11b climate)
where to buy tomato seeds for tomato plants that can withstand 11b climate.
19 Jun 22, susan pawley (USA - Zone 10b climate)
its really hot and humid in south east florida. too far inland for any sea breezes too. I had great luck with a variety bred by UofF for growing here called Floridade. Another one also bred for south fl climate is Talladega and Amelia. I havent grown them for a few years I think I got the seeds on line at rareseeds.com but not sure. Only getting back into gardening last winter as Ive been on hiatus due to illness.
29 Apr 22, (USA - Zone 10b climate)
Any tips for growing tomatoes during the summer in zone 10b USA?
29 Jan 24, Janine (USA - Zone 10b climate)
Move them indoors under a grow light (or in a sunny window) from July through September so they won't burn. Some cultivars are more heat resistant and will survive the zone 10 summer outdoors.
Showing 11 - 20 of 85 comments

Of course there are lots of factors (soil watering etc.), I\ll point out a few you may have issues with. I'm a little concerned about your night time temperatures harming the growth or steady growth of your tomatoes -- in addition Blossom drop will occur in if daytime temperatures are warm but night temps drop below 55 F. (13 C.) -- a condition that can easily occur in a greenhouse in winter. When you look at days to harvest for tomatoes -- they are assuming spring/summer growing -- which means the NUMBER of daylight hours is HIGHER. Your area may drop from 12 hours of daylight in summer to 9 in winter.... that's a big difference. Additionally the INTENSITY of the sun is not as great in winter as it is in summer. This means the plant is not collecting as much light. I would GUESTIMATE you need to at double the DAYS to harvest to account for your growing conditions. If you decide to go forward I would opt for varieties that tend to grow well in colder climates that NATURALLY have less intense sun and shorter days (or install lighting if you don't have it and perhaps some heat). REMEMBER your soil temp needs to stay at about 16c -- so if your pots are on the ground or if you are planting directly into the soil, the cold may creep into the soil from below. There are specific tomato varietals bred for cold hardiness which will tolerate conditions at or below 55 degrees F. (13 C.). The best choices for colder climates are short to mid-season tomatoes. These tomatoes set fruit not only in cooler temps, but also reach maturity in the shortest number of days; around 52-70 days. I would look to some indeterminate cherry or plum size tomatoes (so small tomatoes) with very low days to harvest. I have never grow this tomato -- but -- Originally developed for cool rainy nights, Quedlinburger Frühe Liebe (or as I like to say, QFL) is a German heirloom tomato variety that’s ready for harvest in just 40 days after transplanting (!!!) and keeps producing until killed by a freeze. This makes it quite an amazing all-season plant and a real keeper in the garden if you’re prone to cold snaps. QFL is sweet and flavorful with small, juicy red fruits ==> tomatofest (internet site in the USA) says : Old German potato-leaf variety means "Early love of Qued Linburg". Small spindly vines produce 1 1/2-inch, round, 4-lobed fruit in clusters of 4. These tomatoes have great flavor with good acidity. Developed for cool rainy nights. Prolific even during colder summers. **** you really need to review the conditions in your green house -- day and night time temps, hours of sunlight --and you need to choose your variety wisely -- and even then, this might be difficult -- a lot depends on your greenhouse.

- faith Celeste Archer

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