Cobalt Emperor Desert Rose Bulbs

Adenium obesum — Cobalt Emperor. Everything about this one is scaled up: blooms the size of a camellia, petals heavily ruffled and a deep cobalt that stays saturated even in bright light, over a wide trunk that puts on visible girth every season. This is the plant to buy when you want one specimen that carries a whole room — and it is the one we enter in shows. Give it the biggest pot on the shelf and it will repay you within two years.

What you get

• Dormant bare-root caudex with a naturally wide base, visible eyes and a full root system.
• Flowers the first season once nights stay above 60°F / 15°C.
• One plant per bulb ordered — multi-packs let you build a matched pair or trio.

How to start it

• Pot: generous and wide with a drainage hole. 50% cactus soil, 30% pumice, 20% coarse sand.
• Water: dry for the first 7 days, then deep soaks with a full dry-down between.
• Light: maximum sun you can give; 6+ hours keeps the cobalt deep.
• Cold: USDA 10–12 outdoors; elsewhere above 50°F / 10°C.

Cobalt is the most stable blue we grow, but shade still pulls it toward navy — more sun, more blue. Ships dormant and bare-root, wrapped in dry sphagnum. 5–7 working days to dispatch, 8–25 working days in transit.