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Northwest Pollen Calendar

Pollen Info

	MONTH
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Trees													Weeds
Elm
Oak													Scale
Birch													Russian Thistle
Alder													Dock/Sorrel
Maple													Kochia
Cottonwood													Nettle
Sycamore													Ragweed
Ash													Pigweed
Black Walnut
Cedar, Juniper													Marshelder
Pine													Sagebrush
													Plantain
Grasses
Smooth Brome
Ryegrass
Timothy
Meadow Fescue
Johnson Grass
Kentucky Bluegrass
Orchard Grass


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