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About Pollen in Canterbury

Early spring sees Hazel and Alder pollen from Canterbury’s urban trees and surrounding woodlands; mid-spring peaks with Birch and Oak, concentrated in Dane John Gardens and Westgate Parks. Summer brings significant grass pollen from River Stour meadows and adjacent agricultural fields, peaking late May through July.

Canterbury’s valley topography, particularly along the Great Stour, can trap pollen, intensifying local concentrations. Autumn and winter see elevated mould spore levels, stemming from damp conditions along waterways and decaying organic matter in historic gardens and surrounding woods.

V.HI

10 active species

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4-Day Forecast:

Morning

Grass LOW

Tree V.HI

Weed LOW

Afternoon

Grass LOW

Tree V.HI

Weed LOW

Evening

Grass LOW

Tree MED

Weed LOW

Species	Level	Count
🌳 Downy Birch	V.HI	103 grains/m³
🌳 Paper Birch	HIGH	94 grains/m³
🌳 Silver Birch	HIGH	91 grains/m³
🌳 English Oak	HIGH	76 grains/m³
🌳 Holm Oak	MED	38 grains/m³
+35 more tracked London Plane White Oak Box Elder Black Poplar Ash Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌳 Downy Birch	V.HI	129 grains/m³
🌳 Paper Birch	V.HI	117 grains/m³
🌳 Silver Birch	V.HI	114 grains/m³
🌳 English Oak	HIGH	95 grains/m³
🌳 Holm Oak	MED	48 grains/m³
+35 more tracked London Plane White Oak Black Poplar Box Elder Ash Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌳 Downy Birch	V.HI	166 grains/m³
🌳 Paper Birch	V.HI	151 grains/m³
🌳 Silver Birch	V.HI	147 grains/m³
🌳 English Oak	V.HI	122 grains/m³
🌳 Holm Oak	HIGH	62 grains/m³
+35 more tracked London Plane White Oak Box Elder Black Poplar Ash Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌳 Downy Birch	V.HI	134 grains/m³
🌳 Paper Birch	V.HI	122 grains/m³
🌳 Silver Birch	V.HI	118 grains/m³
🌳 English Oak	HIGH	99 grains/m³
🌳 Holm Oak	HIGH	50 grains/m³
+35 more tracked London Plane White Oak Black Poplar Box Elder Ash Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS

Last updated: 14:02 UTC

4-Day Forecast	Tree	Grass	Weed
Wed 20 May	V.HI	LOW	LOW
Thu 21 May	V.HI	LOW	LOW
Fri 22 May	V.HI	LOW	LOW
Sat 23 May	V.HI	LOW	LOW

Map of Canterbury (51.281435°, 1.080249°)

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What Pollen Levels Mean

LOW Symptoms are unlikely

MED Moderate risk of symptoms

HIGH Widespread symptoms likely

V.HI Expect significant symptoms

X.HI Extremely high symptom likelihood & severity