Plants’ Struggle Against High Temperatures
Summer is a challenging season for both humans and plants. Rising temperatures cause heat stress in plants. Without prompt treatment, plants wilt and stop growing.
What is heat stress and what are the early symptoms ?
First, it is important to understand the nature of heat stress. When plants are exposed to extremely high temperatures and intense sunlight, cell function decreases, causing them to gradually weaken.
Heat stress occurs when plants are exposed to extremely high temperatures and intense sunlight for extended periods, which inhibits normal growth. As a result, the plants struggle to maintain water balance and absorb nutrients. Initially, the leaves may wilt, even when the soil is moist. In addition, the edges of the leaves may turn yellow or brown and the leaves may curl. Flower buds and fruit may fall off prematurely. Over time, growth may slow down and eventually stop altogether. This is a sign that the plant is suffering from heat stress and requires immediate action.
Common symptoms of heat stress:
- Yellow or brown leaves
- Wiping or scorching leaves
- Plants wilting despite sufficient soil moisture
- Premature flower and fruit drop
Why is proper watering important ?
Proper watering is crucial. Improper watering in the summer can cause serious damage to plants. Therefore, it is best to water in the morning or evening.
Proper watering technique:
- Water early in the morning or after sunset.
- Avoid watering in the afternoon.
- Water your plants only when the soil surface is dry.
- Make sure the pot has drainage holes in the bottom.
How to Keep the Soil Cool with Mulch
Mulch is extremely beneficial for summer plants. It helps maintain a constant plant temperature by retaining soil moisture and protecting the roots from direct sunlight.
Mulch :
- Dry leaves and straw
- Coconut husks
- Wooden mulch or bark
A thin layer of newspaper or cardboard
Shade : Smart shading techniques
Plants need sunlight, but too much can be harmful. That’s why it’s important to provide partial shade for plants in the summer to prevent leaf scorch.
Simple shading methods :
- Use shade netting with 50% light transmission.
- Make a temporary shade out of bamboo or fabric.
- Place potted plants in a corner or on a balcony.
- Take advantage of the shade provided by larger plants.
Soil Quality and Heat Stress
Soil quality also affects a plant’s tolerance to heat stress. Organically rich, well-drained, and loose soil promotes plant growth in high temperatures. Heavy, compacted soil can damage plant roots.
Tips for soil improvement:
- Incorporate organic compost into the soil.
- Use coconut fiber and worm castings.
- Aerate the soil regularly.
- Reduce the amount of chemical fertilizer.
The Importance of Foliar Care and Pruning
Now let’s talk about foliage care. In the summer, wilting leaves drain the plant’s energy. Proper pruning helps plants recover from heat stress.
Proper leaf care and pruning are essential to the health of your plant. Regular spraying of the leaves with water or nutrient solution allows them to quickly absorb nutrients and remain bright green, shiny and healthy. Pruning to remove dead, yellowed and diseased branches saves your plant energy and encourages new shoots and leaf growth. Improved air and light circulation also reduces the risk of disease. Regular care leads to stronger and more even plant growth.
Keep the following in mind when pruning:
- Remove dead or yellowed leaves.
- Avoid excessive pruning.
- Prune only in the early morning or evening.
- Use clean, sharp tools.
- Use liquid fertilizers and stress relievers.
Also, avoid over fertilizing in the summer. Light liquid fertilizers and natural nutrients will nourish your plants and help them tolerate heat better.
Natural liquid fertilizers :
- Buttermilk or buttermilk solution
- Seaweed extract
- Vermicompost
- Liquid compost made from kitchen waste
Natural liquid fertilizers are a safe, effective and quick way to nourish your plants. They increase soil fertility, strengthen plant roots and promote healthy growth. Examples include buttermilk, worm castings, cow’s milk and composted food waste. These fertilizers help plants resist heat stress and disease. Regular application of small amounts of liquid fertilizers results in healthy plant growth, lush foliage and increased fruit production.
Choose the right pot
The color and material of the pot are important, especially in the summer. Plants in dark pots are more susceptible to overheating and root damage. Therefore, it is important to choose the right pot.
Tips for choosing the right pot:
- Use light colored pots.
- Ceramic pots are better than plastic pots.
- Large pots retain moisture longer.
- Use two layers of potting soil.
Protect your houseplants from heat stress
Don’t assume that houseplants are immune to heat stress. Air conditioning, high temperatures, and low humidity can stress plants. Therefore, careful care is essential.
High temperatures and humidity in the summer can have a negative effect on plants, a condition called heat stress. Heat stress can cause leaves to wilt and stunt plant growth. Therefore, it is recommended to protect your plants from direct sunlight and provide them with shade. To keep the soil moist for longer, it is best to water in the morning or evening. You can also lightly spray the leaves to maintain a comfortable temperature. Adding compost or coconut fiber to the soil also helps retain moisture. With proper care, your houseplants will thrive throughout the summer.
Important tips for caring for houseplants:
- Avoid direct sunlight.
- Water once or twice a week.
- Repot regularly.
- Avoid direct sunlight from air conditioners.