July 3, 2026, 6:00 am | Read time: 2 minutes
Homegrown cucumbers often taste significantly more aromatic than their supermarket counterparts, which are often said to taste primarily like crunchy water. To ensure the plants grow healthily in spring and summer and produce plenty of fruit, they need proper care. Mistakes, especially in watering, can frequently occur, affecting growth, yield, and plant health. Hobby gardeners should definitely avoid three of these mistakes.
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1. Mistake: Watering with water that’s too cold
It is often warned against watering plants with water that’s too cold during hot weather, as it could cause a kind of cold shock. In most cases, this is not true, according to the website of the Industrial Association for Agriculture. However, cucumbers are different. They are indeed sensitive to water that’s too cold, and this mistake can actually lead to a kind of cold shock.
Instead, use lukewarm water or water collected in a rain barrel or watering can. This way, it is at ambient temperature. Depending on the region, you should also avoid using tap water, as it is often very high in lime.
Related: What to consider when pre-growing cucumbers
4 Mistakes When Harvesting Cucumbers
6 Common Mistakes When Watering Zucchini
2. Mistake: Watering over the leaves
To ensure the cucumber plant grows well and yields a lot, you should also pay attention to where you water it. It’s important to water only the root area and not over the leaves. This can lead to fungal infections. Moisture promotes gray mold, for example. Downy mildew is also encouraged this way.
3. Mistake: Not watering enough
When watering cucumbers, you can also make the mistake of not watering enough. Cucumbers are made up almost entirely of water and need a lot of it. A rule of thumb is that during the entire growing phase, a cucumber plant needs twelve liters of water per harvested cucumber. It’s important to water them sufficiently; otherwise, powdery mildew can also develop due to this care mistake.
Don’t forget trellises!
“Whether you grow cucumbers on the balcony or in a garden bed, you should always provide the plants with a trellis. Both grids and poles are suitable for this. Why is this important? Salad cucumbers are climbing plants. Additionally, the fruits can spoil or become diseased more quickly if they lie on the ground.”