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Reasons for Cannabis Leads Tacoing

5 Reasons for Cannabis Leaves Tacoing

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Ever glanced at your cannabis plants and noticed the leaves curling up like a taco?

It’s a sight that can puzzle and worry growers, but here’s the scoop: it’s a common issue with a variety of solvable causes.

Tacoing can be a red flag, signaling potential threats to your plant’s health and, subsequently, its yield.

Key Takeaways:

  1. Heat stress is a primary cause of tacoing in cannabis leaves, requiring careful temperature management between 70°F and 80°F and increased air circulation.
  2. Humidity fluctuations can trigger leaf tacoing, necessitating humidity levels of 60-70% during vegetative stages and 40-50% during flowering, controlled with hygrometers and appropriate equipment.
  3. Watering must be precise to avoid over or under watering, with attention to soil moisture, drainage, and water quality to prevent root issues.
  4. Nutrient imbalances and deficiencies, especially calcium, magnesium, and nitrogen, contribute to tacoing, highlighting the importance of pH maintenance and supplements like calmag.
  5. Improper lighting, either too intense or too distant, can lead to tacoing, emphasizing the need for adjustable lighting, proper placement, and regular rotation of plants for even exposure.

Unraveling the Causes of Tacoing Leaves

Diving deeper into the leafy conundrum of tacoing, it’s like playing plant detective – each clue revealing more about what our green friends need.

This investigation covers a broader scope, from the scorching effects of heat to the delicate dance of nutrient balance.

Let’s peel back the layers.

1. Heat Stress: The Primary Culprit

Imagine wearing a winter coat in the desert; that’s how your plants feel under excessive heat.

Leaves curl up to minimize exposure and conserve moisture, a clever but worrisome sign.

Here’s the lowdown on managing heat:

  • Monitor Temperature Closely: Aim for a sweet spot between 70°F and 80°F during the day.
  • Increase Air Circulation: Use fans to distribute air evenly, reducing hot spots in your grow area.
  • Shade and Cool: Reflective walls or shades can lower temperature, as can evaporative coolers.

2. Humidity’s Role in Leaf Health

Humidity swings can turn your grow room into a tropical storm or a desert mirage.

Leaves taco as they attempt to regulate water loss or uptake.

Balancing humidity involves:

  • Ideal Humidity Levels:
    • Vegetative stage: 60-70%
    • Flowering stage: 40-50%
  • Tools of the Trade: Hygrometers for monitoring, dehumidifiers to reduce, and humidifiers to increase air moisture.

3. Watering Woes: Over and Under

Watering is more art than science.

Too much, and roots drown; too little, and plants thirst to death.

Here’s a watering blueprint:

  • Check Soil Moisture: Before watering, check soil moisture a few inches deep. Dry? Time to water. Wet? Wait a bit.
  • Roots Need Air Too: Ensure good drainage in your pots to prevent root rot.
  • Water Quality Matters: Use filtered or rested tap water to avoid salt build-up.

4. Nutrient Imbalances and Deficiencies

Plants need a balanced diet.

Calcium and magnesium are like the plant version of milk for strong bones.

Signs of a bad diet include spots, discoloration, and, you guessed it, tacoing.

Fixing the menu:

  • Common Deficiencies: Calcium, magnesium, and nitrogen are usual suspects. Yellowing leaves (chlorosis) signal trouble.
  • pH is Key: Maintain soil pH between 6.0 and 7.0 for optimal nutrient uptake.
  • Supplement Smartly: Use calmag supplements to prevent calcium and magnesium shortages.

5. The Light Factor: Intensity and Distance

Like Goldilocks, plants don’t want too much or too little light.

The wrong amount can lead to stretching, burning, or tacoing.

Lighting best practices:

  • Distance Matters: Keep lights far enough to avoid heat stress but close enough to prevent stretching.
  • Light Intensity: Use dimmable LEDs to adjust intensity based on plant stage and health.
  • Rotate Your Plants: Ensure even light distribution by rotating your plants regularly.

Tactical Solutions to Prevent Tacoing

In the battle against tacoing leaves, being armed with the right strategies can make all the difference.

It’s time to dive into the toolbox and pull out some tried-and-true methods for keeping those leaves flat and happy.

Optimizing Your Grow Room Environment

Creating the ideal grow room environment is like setting the stage for a blockbuster plant performance.

Every detail matters, from the air swirling around the leaves to the gentle warmth embracing them.

Here’s how to get it right:

  • Temperature and Humidity Control: Keep your grow room within the golden range: 70-80°F and 40-70% humidity. Use air conditioners, heaters, humidifiers, and dehumidifiers to dial in these conditions.
  • Ventilation Masterclass: Install a reliable exhaust fan to remove hot, stale air and introduce fresh, cool air. This helps prevent hotspots that can lead to leaf tacoing.
  • CO2 Enrichment: Consider adding CO2 to your grow space during the daylight hours to boost plant growth and resilience.

Fine-tuning Watering and Nutrition

Watering and feeding your plants is more than just a daily chore; it’s an art form that requires precision and a keen eye for detail.

Here’s how to master it:

  • Watering Schedule: Water your plants when the top inch of soil feels dry. Avoid letting them sit in water to prevent root issues.
  • Nutrient Schedule Optimization: Tailor your feeding schedule based on the growth stage of your plants. Start light and increase as they grow, always watching for signs of nutrient burn or deficiency.
  • pH Perfection: Regularly check the pH of your water and soil. Aim for a pH of 6.0-7.0 for soil grows and 5.5-6.5 for hydroponics to ensure nutrient uptake is on point.

Light Management

Light is life for your plants, but like all good things, it needs to be in moderation.

Too much or too little can lead to those dreaded taco leaves.

Here’s how to shine in light management:

  • Adjustable Lighting: Invest in quality, adjustable lights. Being able to tweak intensity can save your plants from stress.
  • Correct Placement: Hang lights at the proper distance above your plants. As a rule of thumb, LED lights can be closer than HID lights due to lower heat output.
  • Light Rotation: Rotate your plants regularly to ensure each side receives equal light exposure, promoting even growth and preventing tacoing.

Monitoring and Adjusting

The secret to preventing taco leaves and other issues lies in vigilant observation and timely adjustments.

Plants communicate their needs through subtle signs, and it’s our job to listen and respond.

Here’s a guide to staying in tune with your plants:

  • Daily Check-ins: Make it a habit to inspect your plants closely each day. Look for early signs of stress, such as slight curling of the leaves or discoloration.
  • Keep a Grow Journal: Documenting changes, adjustments, and plant responses over time can provide valuable insights into what works best for your setup.
  • Be Proactive, Not Reactive: Implementing changes gradually and observing how your plants respond is better than waiting for problems to escalate.


Understanding why your cannabis leaves are tacoing is the first step towards lush, healthy plants.

By addressing the root causes and implementing the solutions we’ve discussed, you’ll be on your way to a bountiful harvest.

Remember, every plant is different, but with patience and care, you’ll become a master of your cannabis garden in no time.

Happy growing!