About the farm

How to plant a watermelon on a pumpkin


Inoculation of heat-loving southern cultures to hardy related plants - a popular direction of selection in horticulture and horticulture, which finds interesting use in the amateur cultivation of melons in the middle lane. Experiencing gardeners get a good harvest, grafting watermelon on a common bottle gourd. Consider the existing vaccination options in stages, so as not to miss important technological details.

What is the purpose of vaccination?

A heat-loving watermelon requires that the soil temperature does not drop below 15 ° C during the summer. The branched stem of a watermelon grown from seedlings in a natural way (in its root) constantly needs warm ground.

What is a plus procedure? Vaccinating the pumpkin significantly increases the cold resistance of the culture.

A well-developed bottle gourd root system is capable of delivering nutrients even at a ground temperature of 7 - 10 ° C.

This allows the grafted berries to form a strong lash, with a large number of successfully ripening ovary.

Grafted watermelons have larger fruit. This is due to the fact that the normal stops the growth of fruits in the absence of sunny weather for 7 to 10 days (which is quite often our summer).

In a traditional watermelon, when the weather is cloudy, ripening will begin immediately, and the grafted will continue to grow.

Besides, bottle gourd roots, unlike watermelon, are practically not susceptible to Fusarium - A disease that often kills plants.

In grafted watermelons larger fruits, increasing cold resistance

Is it possible to vaccinate on lagenariya?

You can graft watermelon on pumpkins of different varieties. But the best option for growing strong plants and successful maturation of large varieties in the middle zone of the Russian Federation, is a pumpkin bottle (Indian cucumber, pot, lagenaria).

Lagenariya, or bottle gourd (Lagenaria siceraria) is a powerful vine of the pumpkin family, which came to us from tropical countries where it is grown for edible fruits.

In addition to cooking, fully ripened lagenaria pumpkins are used to make dishes, decorative items, amulets, and folk instruments.

In the middle lane, lagenaria is usually grown in a seedling way, as is striped berry. For vaccination on Lagenaria you can use the varieties Chill, Astrakhan, Kherson, or early - Chernousk, Korean other.

Pumpkin Lagenariya - the best option for vaccination of watermelon

Types of watermelon grafting on a pumpkin

It’s easy to plant a watermelon on lagenarium. For these two plants grow together, a small contact surface is sufficient.

Let us consider in detail the possible options:

  • reed (the most common method);
  • to the center;
  • rapprochement.

The choice of the method of vaccination is a matter of personal preference of the gardener, confirmed by individual experience.

Vaccinating watermelon on a pumpkin (lagenaria):


Saplings of a stock and a scion for this method choose with 2 - 3 true leaves. The method has excellent survival rate, and can be recommended even for beginners.

On the stalk of a pumpkin, at a distance of 5 - 7 mm below the cotyledonous leaves, with a scalpel make an oblique incision in the direction from top to bottom. Notch length 5 - 6 mm, depth - 2/3 of the stem.

The stalk of a watermelon, at the same height, is cut to the contrary - from the bottom up. The depth and length of the second cut is the same.

Carefully connect the cuts with a “lock”, fix the graft with food foil, or graft clip. At this stage, you do not need to cut off anything; let the seedlings grow each on their roots until the time of healing of the graft site.

Planted interconnected plants in one large glass (volume 0.5 - 0.8 l), immediately put it in the lit place.

After 5 days, the stem of the watermelon must be squeezed below the grafting level, the plant begins to feed from the roots of pumpkin. After another 5 days, cut off the stalk of a watermelon and cut off the top of the lagenaria.

Once the place has healed, the foil is removed.. Finish - a striped berry sapling grafted onto more powerful roots.

For seedlings, use a light, sufficiently nutritious mixture. For example: nutrient substrate and coconut chips, the ratio of 1/3. It is desirable to disinfect the mixture.

This will allow the seedlings to avoid fungal diseases, including dangerous for the “black leg” pumpkin family.

Vaccination "tongue"

To center (split)

We take a pumpkin sapling with a barely crept leaf, and a watermelon sapling with 2 - 3 true leaves.

Using an acute scalpel, with an oblique incision directed toward the center, we cut off the sprout of lagenaria just above the cotyledon leaves. Then slightly extend the incision by 1 - 1.5 mm.

At a water-melon sapling we cut off a top with a growth point at an acute angle. The resulting wedge with 2 - 3 true leaves of watermelon tightly inserted into the center of the rootstock, in place of the cut out point of growth.

Gently fix the place of vaccination (split) with food foil or graft clip.

The grafted seedling is planted in a plastic container with a volume of 0.5 - 0.8 l. Be sure to cover with a plastic bottle with a cut-off bottom and a twisted cork. Foil (or clip) can be removed as soon as the place heals.

Vaccination in the center (split)


We take seedlings of a stock and a scion with 2 true leaves, plant them on the same level, as close as possible to each other, into a large glass.

On the inner side of the stems, 5 - 7 mm above the cotyledon leaves, cut off the skin with a sharp knife. Tightly connect the plants, fix the inoculation with foil.

After 5 - 7 days, the stem of the watermelon must be squeezed below the level of vaccination.. The plant begins to feed on the roots of the pumpkin, and the root of the watermelon will gradually wither.

When planting in the open ground, the pumpkin sprout can be cut off completely.

Vaccination of watermelon on lagenarium approaching:

Features of the procedure

To enhance the properties of the grafted plant, breeders traditionally use a younger stock. Accordingly, the graft should be older.

The graft must be older than the stock. This is due to the fact that a young plant is easier to change individual qualities. Thus, graft qualities will dominate in the grafted plant.

In our case watermelon seedlings should be planted at least three days earlier than lagenaria seedlings.

Before grafting, melon seedlings can be grown in small cups of 100 - 200 ml. After grafting, the plant will need a significantly larger amount of the nutrient mixture.

After vaccination, the plant is immediately transplanted into a glass of a larger volume (0.5 - 0.8 l).

To increase the yield of grafted plants, all pumpkin leaves (rootstock) is desirable to remove. This stimulates the metabolic processes of the combined plants, and the result is a good harvest.

Another feature of grafted watermelon is the need for a larger territory.. When planting in open ground, each seedling is allocated up to 8 square meters. m of usable area.

Watermelon seedlings should be planted at least three days earlier than lagenaria seedlings

Graft Plant Care

To reduce the vulnerability of grafted seedlings, after vaccination is especially important to ensure a stable temperature.

Comfortable development of seedlings, without extrusion, occurs at air temperatures from 25 ° C and above. Seedlings are kept on a sunny window, if necessary - provide heating.

To prevent the development of "black legs", as mentioned above, only loose earthy mixture is used for seedlings. Do not overfill seedlings.

After grafting, the plants are covered with a plastic bottle with a cut-off bottom. Cork is left swirling. After 5 days, the seedlings begin to air systematically.

The cork is unscrewed for 20-30 minutes on sunny days, gradually increasing the time, and increasing ventilation. After two weeks, the plant will get strong enough, the bottle can be removed altogether.

In early June (depending on the zone), it's time to plant the melons in the ground - Grafted watermelons develop much more actively than usual.

The bed for them is selected in a well-lit, sunny place. The solar plot prepared by the method of organic farming will successfully adapt the grafted watermelons.

Pamper your family with a great hand-grown watermelon crop!