Foliar spraying: when and why

Foliar spraying of hemp is one of the most effective methods of care, allowing nutrients to be quickly delivered directly to the leaves. This method of feeding not only helps to accelerate the growth and development of the plant, but also strengthens its immunity against pests and fungal diseases.

When to conduct foliar spraying

Foliar spraying of cannabis is a delicate maintenance tool that requires careful timing. The leaf surface is most receptive to nutrient solutions when the plant is not stressed by heat or direct sunlight. Therefore, it is recommended to spray cannabis leaves early in the morning or in the evening, when the air temperature is mild and evaporation is minimal.

Microdosing of fertilizers—the application of nutrients in small doses through the leaves—is particularly important. This approach avoids oversaturation and burns, while ensuring rapid access of nutrients to plant cells. In greenhouse conditions, microdosing of fertilizers is especially effective, as humidity and temperature are more stable.

Outdoors, it is important to take weather factors into account: wind can reduce the effectiveness of treatment, and bright sunlight can cause damage to leaf tissue. Therefore, the right choice of timing and dosage makes foliar spraying a powerful tool for feeding cannabis through the leaves and maintaining its health.

Why is foliar spraying necessary

Foliar spraying of hemp fulfills several strategic tasks at once, which directly affect the health and yield of the plant. To understand its value, let's consider the key aspects in order:

1. Quick foliar feeding
   The leaf surface instantly absorbs nutrients, making the method ideal for emergency correction of deficiencies. The microdosing approach is particularly important here, where fertilizers are applied in small portions but regularly.
2. Protection from pests and diseases
   Spraying hemp against spider mites and fungi reduces the risk of mass infection. With proper care, the leaves become a barrier against pathogens, and the crop itself remains resistant.
3. Enhancing genetic potential
   Foliar feeding of hemp helps to reveal the natural characteristics of the plant. After all, it is the genes responsible for THC levels and aroma that largely determine the value of the crop. Foliar nutrition and protection create conditions under which genetics are expressed most vividly.
4. Comprehensive hemp care
   Regularly including foliar spraying in the “hemp fertilization and feeding” system ensures a balance between nutrition, protection, and prevention. This is especially important when growing hemp in a greenhouse, where humidity can cause fungal infections.

Thus, foliar spraying is not just an additional procedure, but a full-fledged tool for managing growth, protection, and crop quality.

How to spray hemp correctly

Foliar spraying is not just a maintenance technique, but an entire system that requires attention and discipline. To make the procedure as effective as possible, it is important to consider several practical points.

• Use only proven fertilizers for hemp, including organic compounds.
• Use microdosing to avoid burns and oversaturation.
• Consider growing conditions: in a greenhouse, control humidity; outdoors, avoid wind and direct sunlight.
• Include treatment in a comprehensive “hemp fertilizer and feeding” plan.

If necessary, use biological agents, because the question of how to combat pests without chemicals is becoming increasingly relevant for organic farming.

Basic rules for foliar spraying

Thus, competent foliar spraying is a balance between nutrition, protection, and environmental friendliness. It helps not only to maintain plant health, but also to unlock their genetic potential, ensuring high yields and quality.

This text is for informational purposes only and does not contain instructions for cultivation. Any actions involving plants of the Cannabis genus must comply with the laws of your country/region.