From a botanical perspective, the emergence of a flower stalk is the culmination of Lithops' annual growth cycle and its primary evolutionary goal: reproduction. The flower itself is designed to attract pollinators. Once the blooming period is over and the flower has been successfully pollinated (or has failed to be), the plant's physiological processes shift. The flower stalk is now a spent structure that has served its purpose. The plant will begin to reallocate valuable resources, such as water and nutrients, that were temporarily dedicated to the stalk and flower, back to the core body of the plant for survival and future growth.
After the petals wither, the flower stalk will naturally begin to senesce, or die back. This is not a sign of distress but a normal, efficient biological process. The plant will actively break down organic compounds within the stalk, reclaiming mobile nutrients like nitrogen and potassium to be stored and used for the next critical phase: the development of the seed pod, if pollination occurred, or the growth of new leaves. Allowing this process to happen unimpeded is the most beneficial approach for the plant's health. The stalk will gradually dry out, turning from green to a pale straw color.
The central question is whether to intervene. The best practice is to adopt a policy of minimal interference. Do not cut the stalk while it is still green and fleshy, as this creates an open wound that serves as a potential entry point for fungal pathogens or bacteria, which can lead to rot in the main plant body. Instead, patiently allow the stalk to dry out completely on its own. You may gently grasp the base of the dried, papery stalk and give it a very slight tug. If it resists, it is not ready to be separated from the plant. Forcing it can damage the meristematic tissue at the plant's core. If it comes away freely, you can remove it to improve aesthetics and air circulation.
Following the bloom, your Lithops will enter a period of rest before beginning its most energy-intensive task: splitting to produce a new pair of leaves. The plant draws upon the moisture and nutrients stored in its old leaves to fuel this growth. Your care should support this natural cycle. Significantly reduce watering immediately after flowering ceases, especially as the plant approaches its dormant season (often winter for flowering Lithops). Providing bright, indirect light and ensuring excellent airflow and dry conditions around the base of the plant are crucial. This care regimen supports the plant as it completes its biological functions and prepares for the next growth phase, making the spent flower stalk a minor footnote in its annual cycle.
