Q: How do I harvest and prepare the fruit (tunas) without getting glochids?
A: The fruits are covered in fine, barbed bristles (glochids) that can be irritating. Wear thick rubber gloves and use tongs to hold the fruit. Rinse the fruit thoroughly, then use a knife to peel away the skin from top to bottom, or burn off the glochids by briefly passing the fruit over an open flame . The sweet flesh inside is then ready to eat fresh or process.
Q: How do I harvest and prepare the pads (nopales)?
A: Harvest young, tender pads (6-8 inches long) using a sharp knife, again wearing thick gloves. Remove the glochids by scraping with a knife or burning them off . Peel the edges and any tough spots, then rinse. Nopales can be grilled, boiled, or sautéed; they have a slightly tart, green bean-like flavor and a mucilaginous texture that firms up with cooking .
Q: How much water does it need?
A: It is highly drought-tolerant once established and thrives on natural rainfall in most climates. For optimal fruit production, occasional deep watering during the dry season (especially when fruit is developing) can improve yields . Avoid overwatering, which can cause root rot.
Q: Is it cold hardy?
A: It is reliably hardy in USDA zones 8-11, tolerating brief temperatures down to about 15-20°F (-9 to -6°C) when dry . In colder zones (USDA 7 and below), it should be grown in a container and moved to a protected, frost-free location for winter.
Q: How do I prune a prickly pear cactus?
A: Prune in late winter or early spring to shape and control size. Use long-handled loppers or a saw, wearing thick gloves and long sleeves for protection. Remove entire pads by cutting at the joint (where pads connect). Remove dead, damaged, or overcrowded pads to improve air circulation and light penetration . Let cut ends callous over for a few days before discarding to prevent rooting.
Q: Is it invasive?
A: Opuntia ficus-indica can naturalize in warm, arid climates and may spread by dropped pads that root . While it is a cultivated species and not considered as aggressively invasive as some other opuntias, it is best planted with awareness of its potential spread. In some regions (notably Australia and South Africa), it is considered an environmental weed. Check local guidelines before planting .