Central Phoenix -- The thornless subspecies morricalii of Echinocereus viereckii is an excellent plant. I started with one plant but now...Read More have many. Pieces that get broken off will root where they land if allowed to lay there long enough. But, each plant expands relatively slowly and is easily controlled. In my garden it prefers light shade, but can survive in heavy shade, although it doesn't bloom. My most vigorous plant gets full afternoon sun until about 4 pm and this plant blooms abundantly with intensely deep pink flowers. Most of my plants get once a month summer water, but I have a potted one that is watered only three or four times a year. It seems to be very frost tolerant and many of my plants get no winter protection and have survived down to 24 F for several nights with no damage.
The "viereckii" subspecies has spines that are rarely longer than 1 inch and 6 to 9 tuberculate ribs.
The "huastecensis" subspecie...Read Mores has spines that are up to about 4 inches long and 8 to 13 ribs.
The "morricalii" subspecies is spineless or nearly spineless and has 6 or 7 non-tubercled ribs.
Central Phoenix -- The thornless subspecies morricalii of Echinocereus viereckii is an excellent plant. I started with one plant but now...Read More
The "viereckii" subspecies has spines that are rarely longer than 1 inch and 6 to 9 tuberculate ribs.
The "huastecensis" subspecie...Read More