Gymnocalycium monvillei Size:4" Pot The Blue Torch cacti thrive

The Blue Torch cacti  thrive when cared for properly by using the "soak and dry" technique

Add fresh soil and firmly press it in place

You can grow this Ferocactus hamatacanthus outdoors in USDA zones 6–11

However this spurge will tolerate dryness and can even thrives in poor

Gymnocalycium monvillei Size:4" Pot The Blue Torch cacti thriveThis Gymnocalycium monvillei is a globular, dark green, grey green to green cactus that can grow up 7 to 10" in diameter and up to 3" tall. The genus name "Gymnocalycium" comes from the Greek for "naked calyx" referring to the flower buds bearing no hair or spines. The flowers are some of the largest in this genus, often growing larger than the plant. Recommended temperature zone: USDA: 9 11 Frost tolerance: Hardy to 18F ( 8C) Minimum avg.