I am wondering what is the appropriate zone type for ferns. Anyone have an idea?
Additionally, these ferns are in a green wall planted in pockets. I understand that the choice of soil will impact the length of irrigation based on the soil drainage, but given that these plants are in pockets, whatever the soil type drainage, the pockets will stop water from draining fully. Thus I am wondering if I should select a Clay soil type, which tends to retain water, to bias the controller towards less watering.