How to Grow Cactus From Seed
Most rare cactus takes four to ten years from seed to a saleable plant. Our greenhouse method, the right germination mix, and why a seed-grown specimen beats a seed packet.
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Why Is My Cactus Turning Yellow? A Diagnostic Guide
A cactus turns yellow for one of a few reasons, and where the yellow sits tells you which. Yellow and soft at the base means rot; firm and yellow on the sunny side means light stress; stippled yellow at the tips means mites. This guide diagnoses each by location and firmness, with the fix for every one.
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Why Is My Cactus Turning Brown? Sunburn, Corking, and Rot Explained
A cactus turns brown for five main reasons, and one quick test sorts the harmless from the deadly: press it. Firm brown is usually corking or sunburn; soft, wet brown is rot. A decision tree for sunburn, corking, rot, mites, and frost.
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How to Repot a Cactus Without Getting Stabbed: A Step-by-Step Guide
Repot a cactus the safe way: work with a dry rootball, lift it with a folded newspaper collar, trim any rotted roots, pot one size up in dry mineral mix, and wait seven to ten days before the first watering. Genus-specific pot and depth notes included.
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Cactus Fertilizer: What to Use, When, and How Much
Cacti need little feed: a low-nitrogen, higher-phosphorus fertilizer at quarter to half strength, in the growing season only, once or twice a year for mineral-habitat species. What to use, when to feed, and why over-feeding is the real danger.
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Cactus Pests: How to Identify and Treat Mealybugs, Spider Mites, and Scale
The pests that kill collector cacti are mealybugs, spider mites, and scale, plus the hidden root mealybug most guides miss. How to identify each, treat it without scarring spineless species, and clear a root infestation by bare-rooting and repotting.
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Cactus Etiolation: Why Cacti Stretch and How to Fix It
Cactus etiolation is the permanent stretched, pale growth a cactus puts on in too little light. Stretched tissue never re-thickens, but new growth comes in normal once light is corrected. How to diagnose it, fix it, and set grow lights to the right intensity.
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Cactus Winter Care: How Dormancy Works and How to Overwinter Cacti
Cactus winter care comes down to three things: cold, dry, and bright. Most desert cacti go dormant in winter and survive cold far better dry than wet. How dormancy works, how to water, frost protection, and overwintering indoors, in a greenhouse, or outside.
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How to Get a Cactus to Flower: Dormancy and Bloom Triggers by Genus
A cool, dry, bright winter rest is what makes most cacti flower. This guide explains the dormancy trigger, the minimum size each genus needs to bloom, and species-by-species bloom protocols for Mammillaria, Gymnocalycium, Echinopsis, Ariocarpus, and more.
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Cactus Root Rot: How to Identify, Treat, and Prevent It
Cactus root rot is caused by water molds, fungi, or bacteria that attack wet roots and collapse the plant from below. Identify it early, cut and callous correctly, and use genus-specific rescue protocols for tuberous and columnar species.
