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What Can You Not Grow In A Polytunnel?

What Can You Not Grow In A Polytunnel

Whether you have a Polytunnel or not, you will find that there are many things that you can grow. Some of these are things you may already be familiar with, like beans and tomatoes, and others are new to you.

Runner beans

Runner beans are old fashioned varieties of beans. They are hardy and easy to grow, but they require plenty of attention. They need to be pollinated to produce good pods.

They are also easy to freeze. If you don’t have a container, you can freeze them on their side. You can also boil them, or steam them. They are also delicious when boiled.

To get the best from your runner beans, they need a good compost mix. Compost is free, and is a good source of several vital elements. It’s also a natural soil conditioner. You can add some to the soil before planting, or mix it into the compost.

They also need plenty of water. They can be watered in the mornings before the sun gets too hot, and before the night time closing doors.


Using a polytunnel to grow artichokes is a great way to protect your plants from pests and frost. They can also be grown in a greenhouse, if you don’t have access to a polytunnel.

Artichokes grow well in a warm, moist climate. They like to have good fertility and regular watering. It’s best to use organic soil for artichokes.

Artichokes require a full 12-month growing cycle. You can start them indoors or outside in April or May. They can be harvested in late summer or early fall. They will produce many fruits over several years. If you aren’t comfortable growing them outside, you can purchase rooted shoots. These can be purchased from a local greenhouse or online plant distributor.

Artichokes grow in sun and partial shade. They are tolerant of temperatures as low as 20F. But they do not like too much heat. They prefer to be exposed to 60-70F during the warmest parts of the day.

Spring onions

Whether growing spring onions in a polytunnel or on your kitchen bench, they are a great vegetable to have on hand. They add a little nutrition to many cooked dishes, and they are also delicious on salads and sandwiches. They are relatively easy to grow, and they can be harvested at an early stage.

Spring onions can be harvested at any time between six and twelve weeks after they are planted. They have a thick, papery skin, and the outer layer can be eaten. In colder climates, they can be stored in a refrigerator for several months.

Spring onions can be sown in early March, or in late winter if you live in a temperate climate. Plant seeds at least four inches apart in rows. Ideally, plant at least six or eight seeds per cell. Cover each seed with a quarter-inch of sifted compost.


Whether you’re looking for a hardy spring bulb or a stunning decoration, alliums are a great choice. Not only are they beautiful, but they are also low maintenance, drought-resistant, and tough.

Alliums can be purchased in bulb form or as potted plants. It’s important to remember that most alliums don’t grow well in wet soil, so make sure you have a well-drained area in which to plant them.

You can also grow alliums in containers if your climate is too cold for them to grow outdoors. However, make sure you move them to a spot where they can receive sunlight during the winter. In warmer climates, you may also want to protect them from cold winds.

The best time to plant allium bulbs is early autumn, when the ground is still cool. The bulbs should be planted about 8-20 cm deep, and in well-drained soil. During the summer, they may need a little help to grow, so fertilize them with a general-purpose fertilizer.


Whether you are growing basil in your kitchen garden or in a polytunnel, the first thing to think about is how to manage the sunlight. Basil needs at least six hours of direct sunlight each day.

During the growing season, basil needs warmth and moisture. It is also susceptible to pests and diseases. Basil plants are particularly susceptible to Japanese beetles. The beetles feed on basil leaves and leave ragged holes in them.

You can protect your basil from these pests by using kaolin clay and copper tape. Hoverflies also help keep aphids off plants.

Basil can also be grown in containers. Container-grown basil plants need more water and fertilizer than basil planted in the ground. Using a liquid fertilizer can help reduce watering requirements.

Basil can also be grown in a greenhouse. Many gardeners start basil in a greenhouse in the winter. When spring returns, many gardeners transfer their basil outside.