Fire Barrel Cactus, Biznaga

The flowers are reported to be red only by some, and yellow with a red stripe or tinge by others.
The 'gracilis' subspecies usuall...Read Morey grows higher than 3 feet. it's central spines are less than 5mm wide.
The 'coloratus' subspecies seldom grows to 3 feet high. It's widest central spines are often wider than 5 mm.
The 'gatesii' subspecies can grow to 5 feet high. It's central spines are only 3 mm wide and curved but not hooked

Barrel cactus are easily grown from seed! I picked a seed pod, took it home and made sure the seeds were dry before planting. I planted...Read More the seeds in small pots using a commercial cactus mix and in no time I had over 100 baby cactus. I have been giving them to friends like crazy. If given regular water and grown in a sunny (hot) window they grow quickly!

Its growing wild all over So. Nevada, even in areas that get as cold 15 F in the winter

Colorful barrel cactus native to Baja California. tolerates frost down to about 25F. Nice red, curved thick spines