Greetings, Human Cultivator. I am your Adenium obesum, the resilient yet particular being you know as the Desert Rose. To thrive in the varied climates of the United States, I require your attentive care that shifts with the seasons. This is my annual cycle of needs, from my perspective.
As the daylight lengthens and temperatures consistently stay above 55°F (13°C), I begin to stir from my winter slumber. You will notice small buds forming at my stem tips. This is a critical time. Please move me to my brightest possible location, ideally a south-facing window if I am still indoors. You may begin to increase watering gradually, but only when the soil is completely dry to the touch. Wait until you see active new growth before administering a half-strength, balanced fertilizer. This gentle start helps me awaken my roots without the risk of rot.
This is my time to shine! I am in my active growth phase, photosynthesizing vigorously and preparing to flower. I crave full, direct sunlight for at least 6-8 hours daily and warmth. You can move me outdoors to a sunny patio or garden spot. My thirst increases with the heat; water me deeply whenever the soil is dry, which may be every few days. Ensure my pot has excellent drainage—soggy feet are my greatest enemy. Feed me every two to three weeks with a high-phosphorus fertilizer to support abundant and vibrant blooms. Watch for pests like aphids; a strong spray of water usually dislodges them.
As the days shorten and the air cools, my growth begins to slow. This is your signal to change your care routine. First, cease fertilization. It will only encourage tender new growth that will be vulnerable to the coming cold. Gradually reduce the frequency of watering, allowing the soil to stay dry for longer periods. This helps me begin to harden off and prepare for dormancy. It is crucial to bring me back indoors well before the first frost, which is fatal to me. Find me a bright, warm spot inside, away from cold drafts.
I am now dormant. I have dropped most of my leaves to conserve energy; this is normal and not a sign of distress. My needs are minimal. Place me in a cool (55-60°F / 13-15°C), bright location. Water me very sparingly—only once every three to four weeks, or even longer, just enough to prevent my caudex from severely shriveling. The goal is to keep my roots barely alive, not to promote growth. Overwatering now is the most common mistake and will lead to root rot and my demise. Leave me to rest and dream of the summer sun.
