Growing Kumato Tomatoes From Seeds (A Step-by-step Guide)

Growing Kumato Tomatoes From Seeds (A Step-by-step Guide)

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If you have ever dreamed of growing your own tasty Kumato tomatoes from seeds you have come to the right place. We have a step by step guide for you here, to make your growing easier and a more successful one.

‘Kumato’ is a trading name given to a patented cultivar of tomato developed in Spain called ‘Olmeca’, which went by experimental number SX 387.

It is a standard-size tomato cultivar weighing between 80 and 120 grams (2.8 and 4.2 ounces). Kumato is firm, with a color ranging from green to reddish-brown or purple, varying in flavor from almost no flavor to sweeter than typical tomatoes due to a higher fructose content.

As the ‘Kumato’ is a hybrid, planted seeds will not necessarily grow plants identical to the parent.

Check our guide to growing your own tasty Kumato tomatoes from seeds.

Pre-planting preparation

When you want to plant Kumato Tomato, you need to start sowing in early March.

This is because the temperature during this season is good for the seedlings. As a preparation to plant the seeds, it is necessary for you to soak them in a solution of potassium permanganate for 20 minutes to disinfect.

Then rinse with distilled water. Afterward, you can spill the solution to the ground where you will plant the Kumato Tomato seeds. This is beneficial for the seedling as the solution will protect the soil from pests.


After preparing the seeds, prepare a compose container and use the soil spilled with the solution. Then, you can plant your seeds in the compose container by sprinkling the seeds first then covering it with an inch of soil.

The temperature must be around 71 °F. Use warm and settled water to spray the plantings. Afterward, create a greenhouse effect by covering it with film and put in heat of at least 77 °F. Always monitor the humidity, and lift the film daily for proper ventilation.


After five days, the seedlings will be able to grow its first shoots. Then it is time to remove the shelter cover. After each seedling grows two true leaves, it should be dived and seated in separate containers.

You can use a complex mineral fertilizer solution or whatever available to you to feed the seedlings. Remember to only water the seedlings if the topsoil is dry. If not, just wait till it is.

Just pour the water under the roots, avoid the leaves and stem. Two weeks before you transplant the seedlings, the roots, and stem are beginning to harden. Therefore, you need to take the seedlings out in the open for an hour on the first day. And increase the time of exposure each passing day, to let the planting adjust to its surroundings.


By mid-May, you can already plant the bushes of your tomatoes in a greenhouse for those who don’t have a garden or open area available. And by the end of May, they can be transferred to an open area. At this time, the bushes are resistant enough to the temperature.


Dig holes, with about 20 inches indent between them, and drive the pegs into the soil. Place the seedlings in each hole and cover it with soil. Use a synthetic thread to tie the seedlings as a support, as the synthetic doesn’t contribute to the rotting of the stem.

Always water the plants at respective duration. Then, loosen the soil around them so that no crust will form in the ground. Clear the weeds and mulch the planting with peat. You can use organic matter or mineral fertilizer to the planting.

Properly take care of your planting as it is essential for a good harvest. The bushes don’t need to be shaped, only cut off the stepchildren constantly. By the time of July, you can expect your first fruit of your labor.

The Kumato Tomato is not a hybrid. It is a variety of tomato in which the bush has an indeterminate type of growth, which means that you could have multiple harvests in just one planting season. The plant is above 80 inches in height. But since the stem is constantly growing, when it reaches 80 inches, you need to pinch the top so that the plant won’t be the burden of the weights of its fruits.

The Kumato has powerful roots, located at a depth of 20 inches. The first fruit cluster grows above the 9th leaf, the next cluster grows after 1-2 leaves. It is a mid-season variety, that is, Kumato tomatoes must be removed from the bushes 120 days after the first sprouts appear.

It can be grown outdoors and in greenhouses. It is something very convenient for the gardener to grow. The kumato can produce up to 17 pounds of tomatoes from 1 bush, and about 33 pounds from 10 square feet. So, you can imagine that it is a wise decision not to let it grow more than 80 inches. 

The fruits are round and oval in shape with few ribs. The mass of a tomato is about 2 pounds, and each fruit is 2 – 3 inches in diameter. The fruits are almost equal in size. With technical ripeness, they are of faded green color, there is no spot at the stalk. Ripe black kumato tomatoes have a rather maroon hue.

The fruits have 4 seed chambers. The pulp is fleshy, dark red, sweet, with a flavor of fruits and berries. You can store kumato tomatoes for a long time.

The fresh fruit is very good, but they can also be put in salads, boiled soup, canned, pickled, made tomato paste, and juice. The taste and vitamins do not disappear during cooking. The kumato variety has a special property. It is considered an aphrodisiac and it contains many useful substances.

The kumato tomatoes give high yields as it is an indeterminate. It tastes like dessert, good for salads, and more. It is also easily transported because it has dense skin, so it can’t be easily damaged. The bushes are resistant to hot weather. It is also immune to diseases so you don’t have to worry much about taking care of your plants.

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