The right time to plant a banana tree is spring and summer. Just as might be done in pots, feel free to place a bed of gravel, small stones or clay pebbles to ensure proper drainage. Atop this layer, you will be using a blend of soil mix, garden soil and sand. Generally speaking, the banana tree can not cope with the winter cold, it tends to lose its leaves when temperatures drop below 2°C, and it will need to be protected in winter. Tropical banana trees will die if temperatures drop below 10°C, and they can only be grown in greenhouses. For potted banana trees, water regularly while letting the soil mix dry at the surface before watering again. When outdoors, watering must be regular but limited, in order to not suffocate the plants roots. You might say that watering every 2 or 3 days is often needed, especially when the heat rises. More or less every two weeks, you can offer it some liquid fertilizer, taking great care to moisten the soil mix beforehand.
Technical specification
Watering: Almost dry out between watering.
Ambient: Outdoor plant
Temperature: Full sun
Fertilizer: Universal fertilizer, granular or pellet