Confused about watering and fertilizing trees and plants in Calgary’s climate (Zone 3a/3b)? To shed some ‘light’ on this from my expertise, like humans, greenery needs to be nourished. Without food (fertilization) and regular water, the immune system can be compromised allowing an otherwise healthy tree or plant to show signs of stress. Without proper year-round monitoring, disease can set in and cause death in as little as 1 month! At Evergreen Lawn Services, we recommend pr