I would like to grow cactus outdoors in pots this summer. Please give advice to type of soil, etc.
Certified GKH Gardening Expert
Potted cactus plants require a well-drained compost mix (two parts potting soil/compost, two parts sand, and one part gravel) or a cacti-specific potting medium. They should be watered with tepid water when their soil becomes dry. For more information on growing cacti outdoors, this article will help: https://www.gardeningknowhow.com/ornamental/cacti-succulents/scgen/cactus-landscaping.htm