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 New Zealand - cool/mountain 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

09 Mar 18, Mike (Australia - sub-tropical climate)
What you do is keep some of the tomatoes when they are really ripe - seeds from the different colored tomatoes. Put the tomatoes in a bowl and mash them up - take the flesh out and just have the seeds left. Put the seeds in a container and put some water in it to cover them. They will ferment - have a white fungi scum on the top. After about 5-6 days wash the white stuff off and then place the seeds on some paper towel to dry for a week. Place the seeds in a sealable bag and put in a jar with a lid and tighten it - then put in the fridge until next spring. Tomatoes are easy to germinate and grow. Tomatoes are usually a 6-8 mth crop and then removed. Won't really grow inside - need sunlight.
15 Feb 18, francie hancock (New Zealand - temperate climate)
what tomato do people recommend for cooler climate please
24 Feb 18, Wendy (New Zealand - cool/mountain climate)
We grow short season tomatoes successfully, like Early Girl.
21 Feb 18, Gaurav (New Zealand - cool/mountain climate)
Hi Francie, I am not sure of the variety though I've seen something in Bunnings couple of months ago and that was specific to tomatoes. May be worth going/asking there? Not sure if this is of any help though. Good luck! Regards, Gaurav
27 Jan 18, Greg (Australia - temperate climate)
Blossom end rot; is it potassium or calcium deficiency. I have applied two doses to the soil and watered in but my Apollo tomatoes look to be developing it. Thank you for any help.
30 Jan 18, Mike (Australia - sub-tropical climate)
It is Magnesium deficiency. A suggestion is to put two teaspoons in the bottom of the hole when you transplant. Mix it into the soil. Or apply some around the base of the plant (two feet diameter) and water it in.
30 Jan 18, Mike (Australia - cool/mountain climate)
Apply epsom salts
22 Dec 17, Richard Masina (South Africa - Semi-arid climate)
How many kinds of tomatoes
19 Nov 17, Chris M (Australia - temperate climate)
With some arrays of flowers on my tomato plants there is a single large flower. Why is there one large flower? Would be very grateful for a reply,
19 Nov 17, Pauline (Australia - temperate climate)
A older person told me to cut a tomatoe into 4 and plant I have never done this before so I did and wow 15 plants and the. Plants are unreal
Showing 261 - 270 of 799 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

Please provide your email address if you are hoping for a reply


All comments are reviewed before displaying on the site, so your posting will not appear immediately

Gardenate App

Put GardenGrow in your pocket. Get our app for iPhone, iPad or Android to add your own plants and record your plantings and harvests

Planting Reminders

Join 60,000+ gardeners who already use GardenGrow and subscribe to the free GardenGrow planting reminders email newsletter.


Home | Vegetables and herbs to plant | Climate zones | About GardenGrow | Contact us | Privacy Policy

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. GardenGrow 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.
We cannot help if you are overrun by giant slugs.