The String of Bananas prefers a well-draining potting soil. A regular potting soil is perfectly fine, as long as it contains materials that assist in draining out excess water and prevents liquid from pooling around the plant’s roots. To provide your plant with even greater drainage, you can add peat moss or perlite mixture into the soil as well.
The String of Bananas does not require fertilizer in order to grow. However, if you wish to provide it with a slight boost during the summer and spring, you can feed it organic fertilizer once per month. Judge how your plant reacts to the fertilizer, and adjust your feeding schedule accordingly.