They will also stretch in this way when they are only getting light from a single direction, which causes your plant to grow toward the light source instead of evenly all around. Phototropism can occur for every plant, whether or not they are getting sufficient light due to auxin, a plant hormone that influences the elongation of plant cells.
A healthy plant that stretches is perfectly natural if it’s only receiving light from one direction and will need to be rotated weekly for even growth. Otherwise, we recommend using an overhead grow light instead of rotating your plant. If your plant is not getting sufficient light, we would diagnose your plant’s issue as etiolation instead (more on that below).
Etiolation
If your plant has long inter-nodal space between leaves (also what we and many other plant people call “legginess”), paleness, weakened or collapsed new growth and stems, this is etiolation. This happens when your plant is placed in insufficient light and over time, your plant grows taller to try to capture as much light as possible.
