It needs regular watering, especially during the hottest summer days; provide also some light watering if the green house temperatures in winter are elevated. Either excessive or very scarce watering can induce rot. Sun Exposure: It has a great advantage if grown in very strong light, but sheltered from full sun.
Also question is, how do you grow Pseudolithos?
They should be treated as an outdoor plant as they will easily rot indoors and cannot flower without exposure to outdoor temperature fluctuations. They should be grown under cover so that watering can be controlled. They require a reasonable amount of sunlight to promote flowering and maintain a well shaped plant.
Besides, how do you grow Stephania?
Stephanias need very well-drained soil, full sun, and airy, not excessively humid conditions. From the time new growth begins in spring until stems and foliage die down in fall, they need moderate watering, enough to keep the soil evenly moist, but not saturated.