Echinopsis saltensis [large]

Echinopsis saltensis (previously Lobivia) (Spegazzini): An Argentinia cactus with a low, globose form and formidable spines. It has 17-18 ribs and stays small and (usually) solitary. This species grows a large taproot, so plant in a deep container. It can produce vibrant, red, funnelform flowers in the spring and summer that open during the day and close at night.

This cactus variety will not survive a hard frost, but if there is a risk of freezing temperatures it can be brought indoors to grow on a sunny window sill or under a grow light. Cactus need bright sunlight, great drainage, and infrequent water to prevent rot. Pick containers with drainage holes and use well-draining cactus and succulent soil with 70% to 80% mineral grit such as coarse sand, pumice, or perlite. Water deeply and wait for the soil to completely dry out before watering again.

Full Cactus Guide