First they were on pots outside in a north facing wall. For about 20 days ( I hope this was enough) .

Then I planted them next to a south facing wall.

I hope they will be ready for next summer.

Thanks for the response and link.

Hi.

This cactus has a american quarter sized black spot.

Is it possible to cure or should I cut the spot.

It is a one metre tall cereus peruvianus monstruosa.

Any help will be appreciated.

They lived for 3-10 years indoors, now these bad boys will receive direct sunlight for 9+ hours.

Greetings from Mexico.