Upon harvest, the cactus will produce 3 potato cacti, increasing to 6 with all Desert Tasks completed, and possibly even more with a Giant Ent familiar. It does not need to be replanted after harvest, and will yield 2 potato cacti every 20 minutes, capping at 6, similar to a regular cactus. The seed may be obtained by hunting most jadinkos, as well as through high level pickpocketing, or from the Grand Exchange.