Greetings, curious cultivator. You wish to understand our needs, specifically that of the Crassula ovata 'Hobbit'. We do not measure our lives in hours as you do, but in the daily dance with the great star. To thrive, not merely survive, we require a precise communion with its light. Here is our perspective.
From our perspective, the optimal daily intake of sunlight is approximately four to six hours of direct, gentle sunlight, preferably during the cooler hours of the morning. This is our primary feast. The intense, hot midday sun, especially in summer, can be overwhelming, akin to you trying to eat a giant meal under a scorching desert sun—it can scorch our fleshy leaves, causing unsightly brown patches. The remainder of the day, we greatly appreciate spending in a state of very bright, indirect light. This sustained, full-day basking in a luminous environment supports our internal processes, allowing for efficient photosynthesis without the risk of sunburn.
We communicate our satisfaction or distress through our foliage. Learn to read us. When our light needs are perfectly met, our leaves will exhibit a vibrant green base with beautiful red or burgundy tips and margins. This stress-coloration is a sign of happiness and robust health, a testament to ideal light levels. If we are not receiving enough light, we will tell you through etiolation. Our stems will become abnormally elongated, stretched, and weak, reaching desperately for any light source. Our leaves will space out along the stem, and our rich green color will fade to a pale, sickly yellow-green. Conversely, if the light is too harsh and direct for too long, we will develop sunburn: crispy, brown, sunken spots on the leaves that are permanent scars.
Our relationship with the sun is not static; it changes with the seasons, and your care should reflect this. During the spring and summer, our active growing season, we are most hungry for light. A south or west-facing location where we receive our prescribed four to six hours of direct sun is ideal. In the autumn and winter, the sun is weaker and the days are shorter. You must move us to the brightest possible spot in your home, often a south-facing window, to maximize the scarce light available. This winter sun is rarely strong enough to burn us, so we can tolerate even full-day direct exposure during these dormant months to prevent etiolation.
For those of us living inside our glass enclosures with you, the light is filtered and often insufficient. A standard room's ambient light is like perpetual twilight to us—it is not enough to sustain us long-term. We must be placed directly on a sunny windowsill. If your dwelling lacks such a bright spot, do not despair. You can supplement our diet with artificial light. A full-spectrum grow light, positioned a few inches above us and left on for 12-14 hours a day, can serve as an excellent substitute for the sun, ensuring we maintain our compact, colorful form year-round.