Hi, I am in the process of making a medium BR planter to live 365 outdoors in Canada.
My Questions;
Can I just use the BR Penetrating Sealer? Or please recommend something else?
If the planters are filled with soil and in constant use, does any exterior staining occur from watering the plants ? Should I seal / waterproof the inside of the pot ?
The Penetrating Sealer will last outdoors but the UV rays and everything else that can be thrown at it will break down the sealer over time. Re-sealing is a good idea.
For deep freeze I recommend covering the pot so it doesn't fill up with water and expand with the forming ice. The rain will roll off the sides but build up in the soil. Good drainage is the ticket.