Thursday, 8 October 2015
Home / Interests / Hobbies / How to Grow Tomatoes
Category sponsor

How to Grow Tomatoes

Growing TomatoesGrowing Tomatoes is one of the most rewarding gardening activities and an easy way to start children gardening. They are easy to grow and quickly provide the freshest of tasty results. Tomatoes can be grown from seed or are readily available as seedlings.

Fight Heart Disease

Medical research shows that tomatoes could be the key to preventing blood clots that cause heart disease and strokes. That's because the yellow jelly which surrounds tomato seeds helps keep platelets in the blood from clumping together, therefore eliminating the risks.

When to Plant

The weather rather than the calender date, is the determining factor. They generally need three months of warm, frost free weather to produce well. With protection plants can be grown from August onwards. Labour weekend is the traditional time for planting tomatoes but they can be planted outdoors as soon as conditions allow, usually any time from September onwards.

Soil and Position

Tomatoes need plenty of sunshine. Any free draining soil which is rich in organic matter is ideal. Tall varieties need protection from strong winds. Against a wall, fence or trellis is ideal. Prepare the soil by adding liberal amounts of compost and digging through deeply.

Growing Tomatoes in Containers

Tomatoes are happy in containers or planter bags. Stake and train as you would plants grown in the garden. Use a specific container planting mix. Take extra care with watering do not let the soil dry out. Liquid feed fortnightly. Smaller growing, less vigorous varieties are easiest to manage in pots eg: Dwarf, Sweet 100, Russian Red.


Plant seedling tomatoes at least 40cm apart. Prepare the soil as per above. Water the plant in it's container and allow to drain. Plant without disturbing the rootball. Firm the soil gently. Seedling plants can be planted with the soil about 2cm further up the stem than it was in the pot. If planting seedlings from a punnet, first remove from the punnet then gently separate the seedlings.


It is a good idea to position stakes for all varieties at planting time to avoid damaging the roots later on. Overhead wires with strings to climb up can also be used.


This depends on the type and variety of tomato. Tall varieties need pruning to aid air circulation (which prevents disease), to let in maximum light and to concentrate the plant's energy on the main leaf structure and the fruit. As the plant grows remove all lateral growths as soon as they appear.

These appear between each leaf and the main stem. When the plant has six or seven good trusses of fruit, pinch out the growing tip. This is called "Stopping" and encourages the plant to put it's energy into developing fruit. Dwarf varieties do not need pruning or staking.

Feeding and Watering

Tomatoes with their rapid growth rate are both thirsty and hungry. It is very important to water regularly in dry weather. The plants must not be allowed to dry out. Mulching is an excellent way of conserving moisture in summer. Compost is ideal for this purpose. As plants grow and become loaded with fruit their requirement for water will increase. Once the small fruit appear supplement your initial ground preparation with a fortnightly feed of a balanced fertiliser such as Phostrogen Tomato Fertiliser. This fertiliser is high in potassium to encourage fruit set. Water thoroughly after feeding.


It is a good idea to pick fruit before it is fully coloured and still quite firm. This helps fruit keep longer and relieves the plant of its load allowing it to keep on the job of producing more crops.

Pests and Diseases

Minimise problems by:

Changing the site or replacing the soil of sites used previously for growing tomatoes.

Pruning to encourage air circulation which helps deter diseases.

Remove foliage or fruit showing signs of disease.

Planting grafted tomatoes. These are grown on disease resistant rootstock.

To control blight spray fortnightly with Champ DP, or make that a weekly spray if it`s hot humid weather.

For white fly spray with Mavrik.

Limitation of Liability

This project has been produced to provide basic information and our experienced staff are available either in-store, or via phone or email, to answer any questions you may have. As this information is generalised Mitre 10 is not responsible for the application of the principles in any particular case, as the contents of this project may need to be modified for the particular site and circumstances. Consumers should always ensure that they comply with any local body bylaws that pertain to any construction project and consult a qualified tradesperson where expert services are required.

Read also


So you’ve retired and you’re wondering, “What next?”

For those in Auckland, Selwyn Community Education in Kohimarama is running a new and unique course for men who have retired, called New Directions for Men After Retirement.



  1. I work in pest control and Ultrasonic Repellers do not work they are a scam, any pest will get used to the product and it will stop working,

  2. Profile photo of gavi007

    What is the price, and the ganerate

  3. very helpful article, thanks

  4. Profile photo of PESTCONTROL

    Ultrasonic | Pest Repeller | RCDIMOS LTD

    Ultrasonic Pest Repeller is scientifically tested and proven, efficient and the best. Not killing but in an environmentally safe way determents all pests. Covers from 100m2 to 200m2 of area, this Ultrasonic Pest Repeller is safe to use in places where people and pets are living.
    Used in offices, homes, apartments, shops, etc.

    The Ultrasonic Pest Repeller is a new revolutionary invention that has produced an innovative breakthrough in rodent and Pest Control without using chemicals.

    Visit today: rcdimos com

  5. not wat I was looking for

  6. This article was exactly what I was looking for and gave all the essential information- thanks.

Leave a Reply