There are factors to consider before growing coffee in the greenhouse, including the type of coffee, nutritional needs, and environmental influences. It’s critical to select the right coffee for greenhouse production.
The two primary varieties of coffee have different characteristics: Arabica coffee and Robusta coffee. You can grow coffee plants in a greenhouse if you provide a comparable environment to which it grows in nature. The coffee plant wants to be in the shade and enjoys temperatures between 60- and 70-degrees Fahrenheit with high humidity.
It requires dim lighting and does not tolerate severe weather. It takes 2 to 4 years for a coffee plant to bloom. The plant will produce that yield berries when it is at least five years old.
These berries may be harvested, the skin removed, and the seeds dried. If you roast them, you’ll obtain coffee beans, which you may grind to produce a tasty beverage.
How to Grow Coffee from Seeds
Soak the seeds for 24 hours in water. Make sure the soil is ready for planting. In damp coffee sacks, burlap bags, or polythene bags, place moist vermiculite. Seeds should take 2 to 6 months to germinate.
The length of time it takes for seeds to germinate is determined by how fresh they are. Wait until the seeds on the long end begin to sprout. This is the time to put the seeds in a pot. Plant the seeds in a 1.5-inch-deep container.
How To Plant Coffee
- Coffee beans should be planted in pH-neutral soil. This means that ordinary potting soil should suffice.
- Cover the seeds with loose potting mix after pushing them approximately an inch and a half into the soil. Give plenty of water to the coffee plant. Apply fertilizer soon after planting and at least once a month after that.
- After planting, sprouts will take 2–6 months to appear. Throughout the process, keep the soil moist and fertilized.
- If you’re planting in a pot, you’ll need to report once the sprouts appear.
- Snip off the ends of the branches to stimulate lateral branching, which will encourage the plant to grow outwards rather than upwards.
Growing Condition for Coffee in Greenhouse
· Sun Requirements
A plant’s need for sunlight is unquestionable. Coffee plants were created to grow on the ground of a rainforest. They aren’t designed to be exposed to direct sunlight. If you position your plant in direct sunlight, it will likely get sunburned leaves and, if the exposure is prolonged enough, it will wilt and die.
By ensuring that your greenhouse is constructed with the appropriate materials, you may eliminate any sun-related issues. You should avoid using glass since it allows light to travel right through it.
Choose a humus-rich loamy soil and mix in some peat moss. You may also add some cow dung, bone meal, and dried blood meal to the mix. Alternatively, potting soil, which is light and porous, can be used. Maintain wet and well-drained soil.
The soil’s pH should be adjusted. Coffee plants don’t like pH levels that are too high or too low. Therefore, a neutral (pH 7) is ideal. As a result, you may use normal potting soil. Once the seedlings are 24 – 36 inches long, they are ready to be transferred into the soil in the greenhouse (61-91 cm).
If you keep the plants indoors, they will only blossom in late summer with white blooms. Make careful to spray the plant in the container rather than watering it with a high-pressure hose.
Coffee plants are native to tropical climates with high humidity. You’ll need to obtain some moisture in the air if you want your coffee plant to thrive and yield. If you live in a humid location, that’s fantastic.
However, you might not have to be concerned about this as much. Coffee plants thrive at seventy to eighty percent humidity levels, although they may withstand as low as sixty percent. If you notice your plant’s leaves starting to brown and fall off, it’s almost definitely due to a lack of humidity.
The advantage of growing coffee in a greenhouse is the ability to manage humidity. Investing in a humidifier, particularly one that allows you to regulate a precise humidity level, can make a significant difference in your plant’s success.
Provide a weekly nitrogen boost to the coffee plant in the form of a fish emulsion solution in the water. Furthermore, mature plants may ripen berries without fertilizer, but you can boost yields by using a soluble all-purpose 10-10-10 fertilizer or an orchid fertilizer.
Furthermore, you may utilize an organic solvent such as worm casting, which also works well. Because the coffee plant is a strong feeder, you need to fertilize once a month to maintain good development. It indicates that it consumes fertilizer at a rapid rate.
Because coffee plants are native to warmer areas, they like to be kept higher than room temperature. Aim for a temperature of 70–80 degrees. If it’s too cold, their development will be hindered; if it’s too hot, they’ll wilt or burn.
They can withstand minor temperature fluctuations but maintain them as close to their optimal range as possible and never allow them to freeze. If you’re going to grow them outside throughout the summer, make sure you bring them in before the first frost.
Care for Coffee Plant
- Water: Rainwater should be used to water coffee plants regularly. The soil should be damp but not wet. The use of a misting system can aid in the recreation of natural rainfall. Also, make an effort to use warm water.
I recommend constructing a greenhouse water catchment system that collects rainfall from the structure and stores it in water buds. You may use the tubing to attach the misting system to these buds. It is functional as well as ecologically beneficial.
- Pruning: Pruning your coffee shrub is not required. However, if your greenhouse is tiny, it is to your best advantage to trim your coffee plant. When a coffee plant is just 20 inches tall, you may begin trimming it. This encourages lateral development, allowing your coffee to produce more berries as it develops.
Harvesting Coffee Plant
You’re undoubtedly quite excited to drink coffee that you’ve produced yourself. You will, however, need to exercise some patience.
Coffee bushes reach maturity at the age of three and begin producing berries every year after that. Some might take up to six years to develop.
So, it depends on the kind of coffee you cultivate how soon you may start enjoying it from your greenhouse. When the berries develop a rich red color, they are ready to be picked. Pick them, dry them, remove the coffee beans, grind them, and enjoy your coffee.