What is Candle Cactus
The Candle Cactus, also known as the Blue Candle Cactus or Myrtillocactus geometrizans, is a perennial succulent well-suited to USDA hardiness zones 9 through 11. This fast-growing cactus can make a dramatic focal point in landscapes due to its attractive shape, and it matures to a height between 13 and 16 inches. It blooms in the spring, producing creamy yellow to white flowers that darken before fading.
Care for the Candle Cactus includes avoiding direct sun when young to prevent burning, moving it to full sun as it matures, and providing slightly acidic, well-draining, sandy soil. It is drought-resistant and should only be watered when the soil has completely dried out, with reduced watering in the winter during dormancy.
Candle Cactus Key Details
| Characteristic | Details |
|---|---|
| Size | Grows to 4-5 m tall |
| Primary Color | Blue-green |
| Secondary Color | Creamy white flowers, edible dark purple berries |
| Cold Hardiness | Semi-hardy, best growth in USDA zones 9a to 11b, should not drop below -4°C |
| Light Requirement | Requires full sun, but young plants need partial shade |
| Growth Habit/Shape | Shrub-like cactus with candelabra-like branching |
| Special Features | Edible fruit, young plants sensitive to direct sunlight |
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