Been working with Container Citrus for a Year now. Indoors excep the Summer i live in MI. I see on other forums that some are using Cedar Mulch for their Soil medium along with Peet, Perlite. i was at Home Depot and no Cedar Mulch, go figure, only had Cypress Mulch, Does anyone know if Cypress mulch, PLAIN NO COLOR is safe for Container Citruss?