Master Kush is a popular indica-dominant strain known for its hardiness, but like all cannabis plants, it has specific watering needs that you should pay attention to. Overwatering or underwatering can both be problematic. Here are some general guidelines to consider:
Pot Size: Master Kush plants in 9L pots should typically be watered when the top inch or so of the growing medium (soil or whatever medium you're using) has dried out. The exact timing can vary depending on factors like temperature, humidity, and the stage of growth.
Watering Amount: Instead of watering on a strict schedule, it's generally better to water based on the moisture content of the soil. Ensure you're not overwatering or saturating the medium excessively. The goal is to provide enough water to keep the roots hydrated but not so much that they become waterlogged.
Observation: Pay close attention to your plant's specific needs. If you notice signs of overwatering (e.g., wilting, yellowing leaves, or slow growth) or underwatering (e.g., drooping leaves and dry, crispy edges), adjust your watering frequency accordingly.
Airflow and Drainage: Make sure your pots have good drainage, and that water can escape freely from the bottom. Proper drainage helps prevent water from pooling around the roots, which can lead to root rot. Ensure your grow space has adequate airflow to help the growing medium dry out between waterings.
Pot Weight: You can use the weight of your pots as a rough indicator of when to water. Lift the pots when they are dry, and then lift them again when they are watered. Over time, you'll get a sense of how the weight changes and when it's time to water.
Nutrient Solution: If you're adding nutrients to your water, ensure that you're following the manufacturer's recommendations and not overfeeding. Nutrient buildup in the soil can affect water absorption and root health.
To avoid root rot, it's crucial to maintain a well-draining growing medium and a proper watering schedule. Keep the relative humidity in your grow space at a reasonable level to reduce the risk of mold and root issues. If you have concerns about overwatering, you can also consider adding beneficial mycorrhizal fungi to the root zone to enhance root health and nutrient absorption.
Ultimately, the specific watering needs of your Master Kush plants will depend on your growing environment, pot size, and other factors, so ongoing observation and adjustment are key.