The Stenocactus multicostatus, commonly called brain cactus, is a small globular cactus with distinctive wavy ribs that resemble a brain. This guide covers everything you need to know about watering, light, soil, and propagation for healthy growth. Learn how to keep your brain cactus thriving in any indoor or outdoor space.

Air plants can produce seeds after their flowers are successfully pollinated. Indoors, where natural pollinators may be limited, hand pollination gives growers a simple way to help the process along. The basic method involves transferring pollen from the anthers of one flower to the receptive stigma of another. Successful pollination may eventually produce long seed capsules filled with tiny, fluffy Tillandsia seeds. Learning this process is also the first step toward growing air plants from seed or experimenting with Tillandsia hybrids.

Yellow and brown Calathea leaves can result from overwatering, dry soil, low humidity, water quality, too much sunlight, fertilizer buildup, temperature stress, or pests. Learn how to identify the cause and help your Calathea produce healthier new growth.