
Did you know that adding something to the cucumber can double its yield in just one week? Let’s find out what to add once a month for lush cucumber growth!
If you love cucumber and want to grow it, it takes very little to get a magnificent yield from the plant. By adding simple school chalk, you can double the growth and get a lot more cucumbers to eat fresh. Let’s find out how to use this product!

What is plaster used for?
Cucumbers can be grown outdoors or in greenhouses, but regardless of the choice, they need a fundamental diet such as that provided by chalk. In fact, this substance makes the soil even more suitable for growing vegetables, neutralizes acidity and improves the soil structure.
In its composition, gypsum contains substances that are useful for feeding vegetables and thus also cucumbers, such as calcium, a substance that cucumbers need in large quantities to grow and develop.
The high source of calcium contained in gypsum is therefore essential to improve the quantity and quality of the crop. Especially during fruit formation, if the calcium needed for their lush growth is lacking, rot problems can occur and the crop can shrink and deteriorate.
Gypsum is already naturally present in the soil, but sometimes it’s not enough to provide cucumbers with all the calcium they need to grow beautifully. To compensate for this deficiency, it is possible to water cucumbers and other vegetables with a homemade chalk-based fertilizer, following a simple procedure. Here’s how.
How to Make Chalk Fertilizer
To prepare the chalk fertilizer you need a few ingredients, here are these:
- 200 grams of chalk;
- 10 liters of lukewarm water.
Gypsum must be ground before use, a procedure necessary to completely dissolve the substance in water and distribute it evenly in the soil. In addition to calcium, dissolved gypsum will also provide plants with very important substances such as silicon and magnesium, which are essential for healthy growth.
To grind the cast, place it in a zip-top plastic bag and place it on a cutting board. Using a wooden hammer or meat tenderizer, press the plaster down a few times until it is powdered.
Once you have obtained the chalk powder, pour it into the warm water that you have put in a container. You can do this by reducing the doses, knowing that you need 50 grams of chalk for 2.5 liters of warm water.

How to Use Cucumber Fertilizer
Once you have put the chalk powder in the warm water, mix the solution thoroughly and let it sit for 10 minutes. Once the time is up, mix again and let it rest for another ten minutes. At this point, put the resulting liquid in the watering can and water the cucumber plants, making sure that the product reaches the soil near the plant as best as possible.
Water the cucumbers with this solution once a month, preferably in the evening, and you will see that the harvest will be more abundant, it will even double after only a week.
The nutrients in chalk will immediately give their effectiveness and allow you to grow many other vegetables in the best possible way, always have bountiful harvests and healthy produce to bring to the table. Whether you use this fertilizer on cucumbers grown outdoors or in a greenhouse, you will be able to get rid of the grey rot that prevents them from growing healthy.
If you water your cucumbers properly with chalk, you will give these plants the food they need to grow and multiply, as the soil is better for this crop. At the same time, it should be noted that when planting, chalk protects cucumbers from a large number of pests, thus keeping them away from plants and protecting them from dangerous attacks.