The String of Bananas (Curio radicans) is a trailing succulent native to the arid regions of Southern Africa. Its fleshy, banana-shaped leaves are specialized structures for storing water, adapting the plant to drought conditions. Because of this water-storing ability, the String of Bananas is highly susceptible to rot when exposed to excess moisture. Successful care hinges on a precise and restrained watering regimen.
Reading the Signs When to Water
Determining the proper time to water is based on the dryness of the potting mix, not a fixed schedule. The most reliable method is the “soak and dry” approach: wait until the soil is completely dry before reintroducing water. Wait until the soil is dry at least three-quarters of the way down the pot, or entirely dry to the very bottom in larger containers. Check the moisture level by inserting a wooden skewer or a moisture meter deep into the soil.
The frequency of watering must be adjusted for the plant’s active growth and dormancy periods. During the spring and summer growing season, you may need to water more frequently, perhaps every one to two weeks, depending on light and temperature. Conversely, the plant enters dormancy during the late fall and winter months. Watering frequency must be reduced significantly during this time to prevent root rot, often to once every three to four weeks.
Proper Watering Technique and Amount
Once the soil is completely dry, water thoroughly to ensure the entire root ball is saturated. Pour water slowly and evenly over the surface until it drains freely from the holes at the bottom of the pot. This deep watering encourages the development of strong, healthy roots that seek moisture throughout the container.
Use a pot with adequate drainage holes to allow all excess water to escape. After the initial soak, let the pot sit and drain for 15 to 20 minutes, then empty the saucer or cachepot completely. Allowing the roots to sit in stagnant water quickly leads to fungal issues and root rot. Also, avoid splashing water onto the banana-shaped leaves, as persistent moisture on the foliage can encourage fungal diseases like powdery mildew.
Identifying Watering Mistakes
Troubleshooting watering issues requires careful observation of the foliage. Overwatering is indicated by leaves that appear yellow, mushy, or translucent, sometimes described as swollen. The stem may also turn soft, and the plant may drop leaves easily, signaling the onset of root rot. If these signs appear, stop watering immediately and let the soil dry out.
Underwatering presents with distinct visual cues that differentiate it from overwatering damage. A thirsty String of Bananas will have beads that look shriveled, flat, or deflated, appearing visibly wrinkled but still firm. The leaves pucker and lose their plump shape as the plant conserves internal water stores. If the beads are shriveled, a deep watering will typically restore their appearance within a day or two.