Introduction

Cacti are straightforward if you focus on three things: light, drainage, and timing. Give them bright sun, a gritty mix that never stays soggy, and deep, infrequent water during warm growth. Most species will settle in, keep tidy shapes, and flower once mature.

Quick care, at a glance

• Light: A sunny window or full sun outdoors. After purchase, harden off over 7–10 days to avoid sun scorch. Rotate pots every few weeks for even growth.

• Soil: Use a fast mix—about 50% pumice or perlite, 25% coarse sand, 25% quality potting soil. Big species can handle a touch more mineral grit.

• Water: Soak thoroughly, then wait until the mix is almost dry before watering again. In heat, that may be weekly; in cool weather, monthly or less. Never leave pots standing in saucers of water.

• Containers: Unglazed clay breathes and helps prevent rot; plastic stays wetter longer, so water less often. Ensure a large drainage hole.

• Feeding: Lightly in spring and early summer; a dilute, balanced fertilizer works. Skip feeding in winter.

• Winter rest: Cool, bright, and mostly dry. A proper rest often triggers spring bloom.

• Handling: Use long tongs or a folded newspaper strap; keep tape handy for stray glochids.

• Pests: Mealybugs look like white lint in crevices. Spot-treat early, isolate the plant, and improve airflow.

• Repotting: Every 1–2 years, or when roots fill the pot. Let roots dry a day after repotting, then water lightly the following week.

Beginner-friendly picks
Small globular species are reliable: Mammillaria, Rebutia, Gymnocalycium, and compact Echinopsis. For a tougher look, try Ferocactus in larger pots, and easy Opuntia selections outdoors where hardy.

Places to Buy Cacti

Start with healthy, well-rooted plants, or raise your own from seed if you enjoy the slow, satisfying route. Nowadays, many supermarkets sell small cacti. Some large hardware stores sell small and larger cacti. eBay has many offerings.

Buying/Ordering tips

• Choose plants that are firm, evenly colored, and not glued with fake flowers.

• On arrival at your home, let plants rest a day out of direct sun. Repot into a fresh, gritty mix; wait a week, then water lightly.

• For seed, sow in a shallow, sterile, gritty mix; keep warm and bright, just moist, not wet. Vent gradually as seedlings harden.

• Quarantine new arrivals for two weeks, and check crevices for pests before shelving with the collection.

Keep the rhythm simple—bright light, gritty soil, full soak, restful dry-down—and even a small windowsill collection will look sharp, grow steadily, and reward you with flowers.