Cactus Saguaro
Carnegiea gigantea
houseplantThe iconic Saguaro Cactus is one of the world's largest cacti, though houseplant specimens remain manageable. It grows very slowly and produces creamy yellow flowers and red fruits in maturity. This desert giant requires patient care, excellent drainage, and minimal intervention to thrive indoors.
Common Problems
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Care Guide
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Light
Full, direct sunlight for 6+ hours daily. Insufficient light causes weak, leggy growth.
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Water
Water sparingly; only when soil is completely dry and in warmer months. In winter, provide very little to no water.
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Soil
Extremely well-draining cactus mix with extra perlite, sand, and grit to mimic desert conditions.
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Fertiliser
Minimal fertilizer needed; apply very diluted low-nitrogen formula once in spring if desired.
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Temperature
Warm (75–90°F) in summer, cool winter rest (45–55°F) is beneficial.
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Humidity
Very low humidity (10–30%) preferred. Ensure excellent air circulation.
Toxicity
check_circleSafe for Catscheck_circleSafe for Dogscheck_circleSafe for Children
Non-toxic to humans and pets. Spines are sharp.
Common Diseases
Common Pests
Seasonal Care
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Resume regular watering and feeding as growth picks up.
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Peak growing season. Water and feed regularly.
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Reduce watering as growth slows. Stop heavy feeding.
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Minimal watering and feeding. Protect from frost if needed.