algae in terracotta pots
Hi everyone, I just stumbled upon this forum recently, and I'm excited about everything I've learned. Thanks to all who contribute such great information!
I have 7 empty 20" Italian terracotta pots on my deck. They have been empty for a couple years, but before that, roses struggled to survive in them. I'm hoping that this time, using the gritty mix, the right fertilizer/nutrients, and vinegar to compensate for minerals in the water will eliminate a lot of the problems I had before.
Just recently, with the rains we got, a bunch of green algae (I assume) appeared in the inside of the empty pots. I want to plant roses in the pots soon, like this month. What, if anything, should I do about the algae? I was thinking of trying to kill it and otherwise disinfect the pots with a bleach solution, but I have not figured out a way to keep liquid in the pots for very long.