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Barrel cactus care

Echinocactus grusonii

Thirsty’s starting schedule for Barrel cactus: about every 21 days. Check the soil and adjust it to your home.

Watering

In spring and summer, water thoroughly once the top of the soil has dried. In autumn and winter give little or no water, just enough to keep it from shriveling, and never let it stand in water. [1][2][3][4]

Light

Give it full sun, ideally a south- or west-facing window with several hours of direct sun a day. [1][3][4]

Humidity

Prefers low humidity and copes well with dry indoor air. [1][4]

Soil and potting

Use a gritty, fast-draining cactus mix with coarse sand, grit or perlite. [1][2][3]

Sources

1. NC State Extension: Echinocactus (Barrel Cactus)
2. Royal Horticultural Society: Echinocactus grusonii (golden barrel cactus)
3. Clemson Cooperative Extension HGIC: Indoor Cacti
4. Royal Horticultural Society: How to grow cacti and succulents

This page summarizes the sources above; follow them for the full picture. Light, pot, soil and season all change how fast a plant dries out, so check the soil before you water. Last reviewed October 9, 2026.