While pumpkin spice season is at hand for some coffee drinkers, it’s still too early for the leaf colour changes spotted across the South Island landscape. Foliage changes early in some areas may be an indication of the stress trees are facing, primarily due to heat and drought, in Greater Victoria. Scorch or early browning of leaves is easy to spot, says Matthew Coady, an arborist and area manager of Western Operations for Davey Tree Canada. Le…