Sow tomato seeds and prepare the seedlings

If you have been encouraged to start growing your own vegetables either in an urban garden or in the field, take into account some tips that we will tell you below when sowing tomato seeds and preparing the seedlings or seedlings.

To start sowing tomato seeds (like many other vegetables) we must take into account at what time of the year it is more appropriate to prepare the seedlings or seedbeds. In general, it is preferable to do it between the end of winter and the beginning of spring, as you can see in the planting calendar . In addition, if we prepare the plants in a staggered way, we will collect the tomatoes throughout the summer, spacing and staggering the harvests as well.

How to sow tomato seeds and prepare the plants

We are going to see what utensils and materials we will need to prepare the tomato seedlings:

* Substrate : a mixture that we can use for the seedlings or seedbeds would be 1 part of worm humus as the most superficial layer, 2 parts of earth as the intermediate layer and 1 layer of sand at the base.

* Seedlings or trays in which to sow (you can buy them or improvise them by reusing containers that you have at home). In any case, they should always have holes at the base and / or at the bottom on the sides so that excess water can be perfectly drained and we avoid the appearance of fungi in the seedbeds.

* Organic tomato seeds . You can get them in several ways: one option is to get the seeds of organic tomatoes , you can buy them or acquire them in a seed exchange meeting between gardeners.

Read other interesting articles about organic garden


Take the trays or containers in which you are going to sow the tomato seeds. If they do not have holes to drain the excess water, we will make 4 or 5 at the base or on the sides at the bottom. You can use any clean sharp object. Be careful not to cut yourself.

Fill the trays or containers you use with the substrate. Just filling the containers with a total of 5 cm high of the substrate is sufficient. Then lightly press the substrate and wet it with a little water but without excess.

If you use trays or small containers, with squares of about 3 cm put one or a maximum of two tomato seeds for each square. In case of using other containers with double or more space you can put between 3 and 5 seeds in each one.

Do not bury the seeds too deep as the chances that they can germinate properly are reduced. Tomato seeds are very small and burying them twice or triple their size is more than enough. Then gently press the surface of the seedbeds.

The seeds will need a germination temperature of around 20ºC and will germinate in a period of 8 to 14 days. .

Place the plants on a tray or other container in which we will put water so that it is gradually absorbed and the substrate of the plants is always with a certain degree of humidity.

We will locate the seedlings in an area that receives light.

Keep in mind that it is very important to avoid frost if you plan to transplant the seedlings outside (either directly in the ground or in pots) to avoid serious damage to them. That is why we must do it once the danger of frost has passed. We can keep the seedbeds or plants in a nursery or indoors to preserve an optimal temperature for the germination of the seeds and the subsequent growth of the plants.

The transplant of the seedling from the seedbed to its final place is carried out when it already has 4 leaves or reaches an approximate height of 15 cm.

If the plants receive proper care and depending on the variety of tomato that we are growing in our garden, we can start harvesting the tomatoes in about 4 to 5 months.

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