Protect cannabis from heat stress: leaves curl upwards and show brown burnt edges — identify symptoms, reduce temperature and increase air circulation.
Heat stress can lead to permanent damage. Symptoms: Leaves curl upwards. Brown, burnt leaf edges. Slowed growth despite sufficient nutrients. Wilting plants despite sufficient water. Immediate measures: Increase air circulation. Reduce lighting or hang higher. Give additional water if necessary. Provide shade for outdoor cultivation. Long-term solutions: Install a more powerful ventilation system. Use air conditioning or air coolers. Shift lighting times to cooler hours. Install automatic temperature control. Prevention: Minimise temperature fluctuations. Continuous monitoring. Have a backup cooling system ready.
Heat stress is indicated by yellowed or scorched leaves that turn brown at the edges. Growth may also stall, and the plants may appear wilted.
In hot weather, you should check the soil regularly and water it daily if necessary to ensure that the roots receive enough moisture without causing waterlogging.
To prevent heat stress, you can provide shade, use fans, and increase the humidity. It's also important to water the plants during the cooler hours of the day.
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