Leaves develop dark stains

Dark stains on cannabis leaves, along with a papery or crispy texture, can be indicative of several issues, including nutrient problems or other environmental stressors. Since you've recently started using Plagron Bloom, it's essential to ensure that your plant is getting the right nutrients and that environmental conditions are suitable for flowering. Here's what I recommend: Nutrient Deficiency or Imbalance: The dark stains and papery texture on the leaves might be a sign of nutrient issues. When transitioning to the flowering stage, cannabis plants typically require different nutrient ratios than during the vegetative stage. Plagron Bloom is designed for the flowering phase, so it should provide the necessary nutrients. However, ensure that you are following the manufacturer's instructions for dosage and application. pH Management: Check the pH of your nutrient solution and growing medium. Cannabis plants prefer a slightly acidic pH of around 6.0 to 6.5 during the flowering stage. A pH that is too high or too low can lead to nutrient uptake problems. Environmental Conditions: Ensure that the environmental conditions in your grow space are appropriate for the flowering stage. This includes maintaining the right temperature, humidity, and light levels. High temperatures, low humidity, or light stress can affect the health of the plant and lead to nutrient uptake issues. Watering and Drainage: Make sure you're providing adequate but not excessive water. Overwatering or poor drainage can lead to nutrient problems and affect leaf health. To address the issue: Double-check your nutrient solution and pH levels to ensure they are within the appropriate range for the flowering stage. Monitor the environmental conditions and make any necessary adjustments to maintain a stable and optimal growing environment. Continue to follow the recommended dosage and schedule for Plagron Bloom. Trim and remove any severely affected leaves to prevent further stress on the plant and to improve airflow around the canopy. Keep an eye out for any signs of pests or diseases, as they can also affect the overall health of your cannabis plant. It's important to be patient and monitor your plant's progress. Cannabis plants can recover and adapt if you provide the right care and address any issues promptly. If the problem persists or worsens, consider seeking advice from experienced cannabis growers or consulting with a local grow shop for more specific guidance.