What can I grow in a high tunnel
Joseph Russell
Updated on April 22, 2026
These are tomatoes, cucumbers, corn, and peppers. They are currently the most popular, as well as profitable, crops for high tunnel production.
What grows best in a high tunnel farming?
You can grow many crops in tunnels, but the top five vegetables are tomatoes, peppers, cucumbers, leafy greens and herbs, and crucifers. Small fruit crops also perform well in tunnels. These crops include strawberries, raspberries, blackberries, and blueberries.
What are high tunnels good for?
High tunnels provide protection from extreme weather such as high winds, heavy rain, hail, snow and drought. They also provide shade, protecting crops from heat and sunscald. Working in high tunnels allows the farmer to work/harvest in inclement weather.
What can you grow in a grow tunnel?
- Shallots.
- Garlic.
- Cabbage.
- Broccoli.
- Sugar peas.
- Beetroot.
- Zucchini.
- Cocktail tomatoes.
When can I plant in a high tunnel?
The only time not to plant is when daylight does not allow any growth at all, but one can schedule crops in high tunnel to continue all year long. Once day length exceeds 10 hrs per day in late January, seeding of plants in high tunnels can commence, especially with adequate soil temperatures (>55°F).
How long does a high tunnel last?
A well-constructed tunnel should last at least 10 years, although the covering will likely need to be replaced every 4-5 years as the UV protection in it deteriorates with exposure to the sun. Gothic shaped tunnels have peaked roofs that result in both a taller tunnel and one that sheds snow more easily.
Can you start seeds in a high tunnel?
High tunnels are also a wonderful place to start seeds and harden off seedlings before moving them outdoors. … Nights still get too chilly in most areas when starting seeds, and they’ll need a boost of heat to keep the seedlings from freezing.
Can you grow veg all year round in a polytunnel?
One of the best things about a polytunnel is that with a polytunnel you are not as restricted by the winter weather and can harvest crops from the protected space throughout the whole year. … But when it comes down to it, anyone can grow food in a polytunnel all year round.What vegetables grow best in Polytunnels?
In particular, if you’re lucky enough to own a polytunnel or glasshouse, then this is the very best time to put it to its most productive use, especially when it comes to sowing and/or growing many kinds of heat-loving vegetables, including tomatoes, climbing French beans, courgettes, aubergines, peppers, squash, …
What fruit can I grow in a polytunnel?- peaches & apricots.
- Nectarines.
- a range of citrus fruits.
- Japanese plums.
- Persimmons.
- Chilean guava.
- Pineapple guava.
- Chinese loquats.
Is a high tunnel a permanent structure?
Unlike greenhouses, seasonal high tunnel systems are seasonal and are considered temporary structures. How are crops grown in a high tunnel? Crops can be grown by either using conventional tillage in the natural soil profile or by installing permanent raised beds under the tunnel.
What is a high tunnel on a farm?
What are High Tunnels? High tunnels, also called high hoops or hoop houses, are temporary structures that extend the growing season. These covered structures are constructed in the field in order to protect crops from the weather (rain, wind, cool or warm temperatures), as well as in some cases, pests.
What's the difference between a greenhouse and a high tunnel?
The main differences between a greenhouse and a tunnel are that in a greenhouse, plants are usually grown in pots on a table while a tunnel has the plants growing right in the ground as they would in a garden. … Tunnels typically do not have heating systems or cooling systems.
Do strawberries need pollination in a high tunnel?
Insect pollination is not necessary to produce strawberries, as fruit develop without being pollinated. However, allowing insects to pollinate strawberry flowers will help increase the size of the berries.
How do you orient a high tunnel?
As a general rule, manufacturers recommend orienting the high tunnel to capture the most light in winter. For locations north of 40° latitude, the ridge should run east to west. For locations south of 40° latitude, the ridge should run north to south.
What can I grow in a hoop house?
In an unheated hoophouse, you can start direct seeding cold-tolerant plants including beets, carrots, cilantro, radish, salad mix (mesclun), scallions, spinach, and turnips. By Feb. 15, it is generally safe to plant these anywhere in the U.S. inside a hoophouse.
Can I start seeds in a hoop house?
Hoop Houses are small, semi-portable structures that can be used as a small greenhouse structure for starting seedlings and for growing heat-loving vegetables. A hoop house provides frost protection, limited insect protection, and season extension. Hoop house structures are easily constructed and will last many years.
What is a crop tunnel?
Tunnels or hoophouses, are temporary agricultural structures with arched or hoop frames, and are covered with clear plastic. High Tunnels are usually high enough to drive a tractor through. … Crops are grown in the ground, usually with drip irrigation.
Can you grow corn in a hoop house?
But, trust me you can easily grow corn inside your hoop house. To successfully grow corn inside your hoop house you need to provide this veggie with the ideal soil, sunlight, and frequent pollination sessions. You can learn more about hoop house corn in this extensive guide below.
Can you grow tomatoes in a polytunnel?
GROWING TOMATOES IN POLYTUNNELS A polytunnel can make the difference between tasty ripe tomatoes and hard green ones only good for chutney. A polytunnel warms the soil beneath it, so you are able to plant out your tomatoes at an earlier date. Warmer soil means quicker, healthier growth.
Can you grow French beans in a polytunnel?
French beans, also known as green beans or common beans are one of the easiest crops to grow in your polytunnel. While French beans can be grown outside in most of the UK, they will enjoy the extra warmth when grown under cover and will reward gardeners with a bumper crop.
What can you plant in polytunnel in April?
This month you can sow – Basil, Cucumber, Melon, Courgettes, Summer squash, Broad beans, French Beans, Carrot, Peas, Broccoli, Cabbage, Strawberries, Radishes……just to name a few.
Can you grow potatoes all year round in a polytunnel?
In order to maximise space and keep your potatoes growing on a cycle throughout the season (for storage and use throughout the year), many people choose to plant their potatoes in a polytunnel. Some people even use polytunnels in conjunction with sacks or containers, a way to save even more space.
Can you grow broccoli in a polytunnel?
Growing Broccoli and Calabrese in Polytunnels Sure, you can grow broccoli and calabrese outdoors in your garden, but with a polytunnel, you can better control the growing temperature and prevent pests from getting at your crops. Slugs, snails, and birds can all be deflected with a polytunnel.
What can you grow in a polytunnel in May?
- Aubergines.
- Basil.
- Courgette.
- Cucumbers.
- Melons (only in warm districts)
- Peppers and chillies.
- Tomatoes.
Can you grow asparagus in a polytunnel?
Unlike other types of vegetables, the Asparagus is a perennial crop. … Besides, it’s one of the most sought-after winter crops that you’ll come across. You can also plant it in a polytunnel for proper growth and protection.
Can you grow sweetcorn in a polytunnel?
Sweet corn do incredibly well in a polytunnel because perfect pollination and with it large fully filled cobs is assured. Plant out in square block leaving 30cms between each plant.
Can you grow grapes in polytunnel?
A polytunnel can be the perfect place to grow your own vines, providing just enough extra warmth to keep the plant grapes happy and allow them to ripen well. In fact, you will usually find that just one vine is enough for indoors planting in a polytunnel or greenhouse, unless it is a particularly large one.
How much is a high tunnel?
At a cost of $1to $2 per square foot, a high tunnel can add low-cost growing space for season extension or plant protection. Growers and researchers are finding many innovative ways to utilize these structures to supplement their greenhouse operations.
How does a high tunnel work?
High tunnels often look similar to greenhouses, but are usually only single walled and are typically not temperature controlled. The plastic covering traps sunlight to raise temperatures inside the structure for the plants growing inside.
Why are tunnels high in greenhouses?
There’s A Reason They’re Called “High Tunnels” Because many of the standard sizes of traditional greenhouses are not tall enough to drive a tractor directly inside, high tunnels were developed to give growers that much extra headspace to fit in the big machines.