Garlic is one of the first plants to delight us with green shoots in spring. However, sometimes they start turning yellow. This worries gardeners because during the active growth phase, this can be dangerous. Why does this happen? What can be done to prevent it?
A signal not to ignore
In spring, garlic should grow and gain strength to form bulbs. Yellowing leaves may indicate problems that affect the yield and its quality. There are several possible reasons.
Lack of nitrogen
Nitrogen-poor soil cannot provide proper greenery growth. On such soil, garlic will appear pale or yellow. To fix the situation, you should:
- apply fertilizers – urea, complex blends, ammonium nitrate;
- use foliar feeding in case of severe nitrogen deficiency.
These measures will help solve the problem.
Excess or lack of water
Garlic does not tolerate too much or too little water. Excess moisture causes root rot, while drought stops growth. In this situation, you should:
- control watering depending on soil type and weather conditions;
- arrange drainage or raised beds if it rains frequently.
This ensures optimal soil moisture and healthy garlic growth.
Root damage
Frosts, pests, and improper soil loosening can damage the roots. As a result, garlic cannot absorb water and nutrients properly. The problem can be solved by:
- using agro-fabric during frosts;
- carefully using tools near the roots.
These methods help prevent plant injuries.
Acidic or alkaline soil
Incorrect pH prevents garlic from absorbing minerals, causing leaves to lose color. You should monitor the pH level and keep it between 6.2 and 7.0. To reduce acidity, apply lime or peat 1–2 weeks before planting or fertilizing. In overly alkaline soil, add peat, garden or flower sulfur, ammonium sulfate, or conifer compost.
Diseases and pests
Garlic leaves may turn yellow if the plant is affected by fusarium, botrytis, or other fungal diseases. Nematodes and onion flies are also harmful. Using fungicides, preventive treatments, and crop rotation can protect against these problems.
All these measures can protect your garlic from yellowing and sometimes even solve the problem completely.
Yellow garlic leaves are a clear signal of trouble. Timely diagnosis and proper treatments help save the harvest and ensure healthy plants. To enjoy aromatic garlic bulbs in autumn, you must take good care of your plants in spring.
UDAZ Assistance
If you want a good garlic harvest without unnecessary problems, trust the professionals. UDAZ offers a full range of turnkey services: from soil analysis to creating a personalized agro plan and maintaining your crops. Healthy garlic from the first leaves to harvest, expert consultations, and modern farming techniques.