Updated at: 05-09-2022 - By: Sienna Lewis

Growing grapes is a simple task. Grapes can be cultivated either indoors in a greenhouse or outside in the fresh air. Experts agree that grapes need exposure to sunlight in order to ripen correctly. Grapevines are adept climbers, but they still require considerable assistance when first planted. The tendrils, which can be anything from wires to trellis to poles, need to be supported by a sturdy wall.

In the United States, grapes can be grown outdoors or in greenhouses without violating any laws. Canadian farmers employ a wide variety of mechanized agricultural methods, including the practice of grafting. People all across the world are expressing an interest in organic farming practices by growing sustainable vineyards.

The urge to grow grapevines in an open or enclosed garden is more likely if the gardener is a true gardener with a strong desire to develop trees. I don’t know. One day you may be the only owner of a vineyard known for its superior grapes, ensuring that your clients receive only the finest selection available. Grapes are a popular ingredient in desserts, so even restaurants will begin to buy from you.

How to plant and grow grapes

How to Grow Grapes - BBC Gardeners World Magazine

True gardeners with a passion for tree cultivation are more likely to feel compelled to plant grapevines in their outdoor or indoor spaces. I can’t say for certain. The future may find you as the only owner of a vineyard known for its excellent grapes, selling to discriminating consumers who want only the best. Since grapes are frequently used in baking, even eating establishments will start to buy from you.

Grapevines require a sunny, well-drained location with room for their roots to stretch out. Whether you’re growing outdoors or indoors, you’ll want to prepare the soil by digging a deep hole, adding drainage materials like crocks and gravel, and mixing in well-rotted manure or compost. When growing outside, provide the vine about 15 cm of space between itself and the surface it will be climbing.

Planting grapevines 1.5 m apart in rows 1.5 m apart will allow you to produce your own wine.

How to care for grapevine

Even in really dry climates, outdoor grapevines shouldn’t need a lot of watering. Conversely, plants exhibit a voracious appetite. They thrive when given an annual mulch of well-rotted horse manure and a sprinkling of blood, fish, and bone mix in the early spring. For the first few weeks of summer, feed your tomato plants once a month. If you want to grow dessert grapes, you should fertilize them once a week until they start to ripen.

All flowers should be removed from young grapevines for their first two years following planting. Keep harvests to a minimum for the first three years, or until the vine reaches at least five years of age.

Grapes can be grown on walls, trellises, or arches, and just a little plot of land is needed if the vines are correctly trimmed. In the first year, three upright stems should be allowed to develop. If you cut down one of the stems in the fall, you’ll stimulate growth the following year. The stems are spaced far apart, allowing for enough of airflow and a spacious environment in which the fruit can ripen.

Cut back on the ramifications that have sprouted this season. In the heat of summer, you can thin out your fruit by cutting off excess stems and leaves using a pair of long scissors.

Grapevines can be trained to produce fruit in cordons or espaliers, which have two horizontal branches.

Tune in to Monty Don’s greenhouse grapevine pruning advice:

Harvesting grapes

Grapes are less sensitive to cold than they are to a lack of sunlight when it comes to ripening. If there are any spoiled fruits in the pantry, get rid of them. If you’ve had a good growing season, the grape harvest should take place in September and October. Grapes are ready to be picked when their color and flavor have reached their peak.

Planting and growing grape vines in The UK - Larch Cottage Nurseries

Storing grapes

Grapes picked for consumption should be eaten within a few days, however they can be stored for up to a week in a refrigerator or other cold location. If you’re looking for a new way to serve grapes, I highly recommend perusing the pages of Olive Magazine.

Growing grapes: problem solving

Grey mold can develop on plants if the environment is too humid or there isn’t enough air circulation. The plant’s overall health and growth is negatively affected, as are the plant’s buds, leaves, flowers, and fruit. Plants that are already sickly or have been damaged may die. In the event that contaminated areas of the plant are located, they must be destroyed by fire.

The development of the vine will be hampered by the presence of powdery mildew on the leaves. Many of these plants can thrive in mildew-prone environments.

When red spider mites invade a greenhouse, the plants’ leaves turn yellow, get sticky with webs, and eventually fall to the floor. Biological methods can be used.

Honeydew secretions from mealybugs, which are sap-sucking insects, are the source of black sooty mold. Ladybugs and other biological pest controls have their uses.

Five grape varieties to grow

  • Vitis vinifera ‘Black Hamburg,’ a dark dessert grape variety, is ideal for greenhouse cultivation.
  • The Vitis variety “Brant” is a hardy and strong variety that does well when grown in the open. Even though it is commonly available, it does not yield the highest quality grapes.
  • Self-fertile and seedless, the “Muscat Saint Vallier” hybrid grape variety of Vitis vinifera is more suited to eating than making wine.
  • Much of the United Kingdom is suitable for growing the green grape variety Vitis vinifera ‘Poloske muscat. It’s resistant to mildew and produces a bountiful harvest of delicious fruit.
  • The Vitis vinifera ‘Muscat Bleu’ grape is very dark in color, nearly black in certain cases. Outdoor-adapted varieties of high-yielding, disease-resistant plants.


Depending on the size of your greenhouse, you can plant grapes either outside or inside. If you have a small greenhouse or wish to grow multiple varieties of grapes in a larger greenhouse, a tub is the best option. Let’s start by seeing what occurs when you put the root in the ground outside.

The vine is first planted in soil outside, then trained for growth inside a greenhouse. Vine training can be accomplished by excavating a hole in the greenhouse roof or by removing a brick from the base of the structure.

Planting grapevines outside allows their roots to grow and find the water and nutrients they need, potentially reducing the amount of watering they need. If your greenhouse is on the tiny side, this technique may be preferable because of the reduced amount of outdoor space it requires.

If you do not want to or are unable to cut a hole in the greenhouse, the grapevine’s root can be grown there instead.

Growing With The Roots Inside

You can also bring the roots inside the greenhouse by planting in a border or a container. The warmer soil may promote early growth with this strategy, but remember that the plant will require more care and attention due to its location indoors.

Planting In A Tub

Vines enjoy a warm, humid environment and can quickly take over a greenhouse, even if it’s only a little one. Planting in a tub limits the plant’s root system’s ability to spread out and thrive. Choose a container with good drainage and fill it with good compost before using it. Also, they need to be regularly provided with food and water.

If you grow your crops in tubs, you may take advantage of the fact that they are easily portable once you’ve finished harvesting. The grapevines are shielded from the weather while they grow within a greenhouse. If just four or six stubs are left after severe pruning, the vine will not grow uncontrollably the next year.


Caring For Grapes In A Greenhouse

Apply bonemeal and fertilizer to the plant’s root zone at the start of the growing season in the spring, and continue doing so every three weeks until the plants reach their full growth potential. As soon as the grapes acquire a dark color and begin ripening, you should stop feeding them to keep their flavor intact.

Grapevines grown in the ground need watering only once every seven to ten days during the growing season, rather than more frequently if the weather is dry.

When grapevines are in full bloom, pollination assistance may be required. In a greenhouse with good ventilation, you can manually pollinate the plants using a feather or by shaking the stems. Either method can be used to move pollen from one flower to another.

Grapes grown in either an indoor or outdoor setting require regular pruning. Grapes planted outside are typically trained using the Guyot system, whereas indoor grapes are trained using the rod and spur approach. For further information, check out this informative essay on grape pruning written by experts at the Royal Horticultural Society.

Grapes are susceptible to powdery mildew, which can be brought on by overpopulation, high temperatures, or a lack of air flow. Overcrowding and mildew infection can be avoided by growing a mildew-resistant grape variety or by regularly pruning the vines. A fungicide, if available, could be used as an alternative.

Make sure your greenhouse has good ventilation and all dead plants are removed promptly to prevent gray mold from forming.

This manual is intended to serve as a solid introduction to greenhouse grape cultivation for those with no prior experience. We challenge you to try growing grapes, because it’s not as difficult as you might imagine. Check out our tips on greenhouse melon cultivation, or learn how to cultivate that garden staple, tomatoes.

Can you grow a grape vine in a greenhouse?

Space is a major consideration when cultivating grapes in a greenhouse or conservatory. In a large greenhouse, every grape vine needs at least 1 meter (314 feet) of room.

How do you look after a grape vine in a greenhouse?

Apply bonemeal and fertilizer to the plant’s root zone at the start of the growing season in the spring, and continue doing so every three weeks until the plants reach their full growth potential. When the grapes develop a dark hue and start to mature, you should stop feeding them. Because of this, the grapes will keep their full flavor.

What conditions do grape vines need to grow?

Grapes do well in warm, sunny locations with good drainage. They add visual appeal and practicality when trained to grow along walls or fences or even over pergolas.