That was a big concern, Steve. Many of my new cacti are likely not 3 or 4 yrs old or are just reaching that age, even though some are large enough to be planted in 5 inch pots. Which leads me to believe I need to err on the side of caution and overwinter in a 55-60F (12-16C) environment as well as t...

Keith, do you lose any of the small ones during dormancy? That's my biggest worry.

I get that cactus will go dormant when temps are consistently below 50F (10C) at night. Perhaps the better question would be, does a cactus that’s only two inches circumference really need to go dormant? Or does its small size put it at a bigger risk of dying from dormancy temps? Many of my cacti we...

Until this year, ALL my cacti overwintered in a bank of South-facing windows with indoor temperatures hovering between 55-70F (18-21C). This year, I have purchased shelves and grow lights, and I plan to overwinter some of my cacti in a cold room at proper dormancy temperatures and humidity. Of cours...