Common coleus prefers consistently moist soil with good drainage. The amount of water needed depends on various factors such as pot size, root depth, and plant size. Here are some guidelines to follow:
Pot Size: The size of the pot affects how quickly the soil dries out. Smaller pots will dry out faster and require more frequent watering, while larger pots can retain more moisture and need less frequent watering.
Root Depth: common coleus has shallow roots that typically extend up to 6 inches deep. Watering should be done deeply, ensuring the water reaches the bottom of the pot to provide sufficient hydration to the entire root system.
Plant Size: Young common coleus plants require less water compared to mature plants. As the plant grows, its water requirements increase. Monitor the soil moisture and adjust watering accordingly.
As a general guideline, water common coleus when the top inch of soil feels dry to the touch. A thorough watering, allowing water to run out of the pot's drainage holes, is recommended. The goal is to maintain moist but not waterlogged soil.