How to Grow Green Beans in Greenhouse: A Step-by-Step Guide for Seed to Harvest

Growing green beans takes only a few weeks. Compared to other vegetables, dry conditions may not be a problem. Bean pods are nutritious and have a soft, long, solid, yet flexible texture. Due to the nitrogen buildup on their roots, they leave the soil relatively good or even better after harvesting. Any time of the year can be a good time to grow French beans in a greenhouse.

Green beans can be grown in greenhouses with good soil, full sun, regular moisture, and temperatures that don’t get too hot. Temperatures between 10 and 30°C are ideal for growing green beans. If you only have a small area to grow beans, bush beans are a good choice. Growing pole beans in-ground is possible if you have a hoop greenhouse with a soil floor.

How to Grow Green Beans in Greenhouse

Types of Green Beans

So many delicious types of beans can be grown in vegetable gardens and containers in greenhouses. Beans are legumes and build soil like peas. There are various types of beans, based on how they are eaten (fresh pods versus fresh seeds versus dried seeds) or their growth habit (bush versus pole). The last group makes the most sense for green beans.

Bush beans: Most bush beans grow between 12 and 24 inches tall and are fast and easy to grow. Fresh beans usually take seven to eight weeks to harvest once the seeds are sown in late spring.
Pole beans: A pole bean can either be a runner or a vining snap bean that grows eight to ten feet tall. They begin to crop eleven to twelve weeks after seeding when growing up a trellis, teepee, tower, netting, or stakes. In comparison with bush beans, the harvest season lasts around six weeks.

Favorable Soil for Growing Green Beans in Greenhouse

French beans can be grown in a greenhouse using a variety of soil types. It can range from sandy to loam to clay. Before seeding, it is reasonable to conduct a soil test. Clay soil is fine as long as it is rich in organic matter and has a pH between 6.5 and 7.0. They do not like cold, soaked, heavy soils or acidic soils. Make sure the soil is kept moist. The higher it grows, the more it needs to be done.

Lighting specifications for Growing Green Beans in Greenhouse

The bean plants need 8 to 10 hours of sunlight daily, so they should be in an area with plenty of light. A bean plant that receives six to seven hours of sunshine daily may flower but won’t produce many pods. For them to develop, sunlight is not necessary, but warmth is. However, extreme daylight can also dry out the soil, leading to water stress and flower drop. It is not influenced by the length of the day in greenhouse growing situations but by the brightness of the light. It will help if you plant your beans in a bright, shady area.

How to Grow French Beans in A Greenhouse

Green beans require well-drained soil in a mild, sunny location.
You can use planters in your greenhouse or prepare a spot for them in your greenhouse. Before planting pole beans, trellises or teepees should be installed to support their heavy vines.
The ideal temperature for bean germination is 15.5°C to 21°C in fertile, well-drained soil. Poor flower growth and poor pod production will result from low temperatures.
Each module should be planted around 1.5 inches deep.
The seeds should be sown nine inches apart in rows 18 inches apart. Plant seeds 1 inch deep and 3 inches apart for trellised pole beans, eventually thinning to 6 inches apart. Use poles at least 7 feet tall for a teepee, and plant six to eight seeds around the base.
A light seed fertilizer should be applied.
After planting, seeds usually germinate within five to ten days and begin to develop immediately.
When growing green beans, stay out of the bean patch when the weather is wet. It is because bean plants are susceptible to fungal diseases, and wet foliage spreads them.

In case you missed it: How to Grow Greenhouse Tomatoes: A Step-By-Step Guide for Seed to Harvest

Watering Requirements for Growing Green Beans in Greenhouse

While some beans do not require much watering, French beans may require more, especially during flowering. Compost should not be allowed to dry out since they love lots of water. Providing 1-2 inches of water every two weeks is generally sufficient. A regular water ration is vital because soil moisture influences yield, regularity, and quality. Lack of water during flowering and podding results in flower failure and bent pods, resulting in lower yields. Waterlogged conditions, however, can be very harmful to French beans.

Fertilizers Requirements for Growing Green Beans in A Greenhouse

Bean plants, whether bush or vine, don’t need much extra fertilizer and even provide some of their nitrogen. You only need a layer of compost 3 to 4 inches deep for healthy, high-yielding bean plants. It is possible, however, that you may not be able to grow bean plants if your soil lacks one specific nutrient or is infertile. You can determine nutrient deficiencies using a soil test kit from a garden center. Additionally, it will register your soil’s pH level, affecting whether bean plants can get the nutrients they need.

Harvesting Green Beans

Depending on the weather, the beans are ready for picking ten to twelve weeks after sowing. You should check the pods daily once they begin to form because they mature quickly once they begin to form. The best time to harvest most varieties is when they are about 10 cm long.

It would help not to allow the ripe pods to remain on the plant unless you are growing it for seeds (either green flageolets or dried haricots). As a result, the seeds will grow larger, but the pod itself will lose its texture and flavor. In addition, your crop will suffer from a decrease in pod production as the plant concentrates its energy on the swelling seeds. Cropping will continue for five weeks or more with daily picking.

In case you missed it: 1 Acre Chilli Farming Success Story: Check How This Farmer Became Rich with Green Hot Pepper Cultivation

Conclusion

Growing green beans in greenhouses is popular in early spring and late fall when outdoor soil temperatures are too low to sprout the seeds. Pole-type beans are vine-like plants trained up to the top of greenhouse spaces and then left to wind their way down. Several varieties of beans are particularly suited for greenhouse growing, but nearly all will do well in a greenhouse setting.

How to Grow Green Beans in Greenhouse: A Step-by-Step Guide for Seed to Harvest