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      1. Tree Pollens
        1. Cottonwood
        2. Juniper
        3. Elm
      2. Grass Pollens
        1. Timothy Grass
        2. Orchard Grass
        3. Bermuda
      3. Weed Pollens
        1. Kochia
        2. Ragweed
        3. Sagebrush
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Featured Pollens

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Weed

  • Sagebrush

    Sagebrush
    Sagebrush is native to Western Colorado and grows in large numbers on the National Monument, Uncompahgre Plateau and the sides of the Grand Mesa.
    • Read more about Sagebrush
  • Ragweed

    Ragweed
    Ragweed is one of the most well known weed pollen in the United States. However, the Grand Valley has a surprisingly small amount of ragweed growing here.
    • Read more about Ragweed
  • Kochia

    Kochia
    Kochia is in the chenopod family of weeds, along with Russian Thistle, Lamb's Quarter and other weeds common to the Grand Valley.
    • Read more about Kochia

Grass

  • Timothy Grass

    Timothy Grass
    Timothy grass is the predominant allergen seen in Mesa, Telluride, Aspen, Crested Butte and with people who ranch up on the Mesa, probably starting to grow around 7,000 feet.
    • Read more about Timothy Grass
  • Orchard Grass

    Orchard Grass
    In lower elevation regions of Western Colorado (<8,000 ft), orchard grass is the predominant wild grass growing and releasing pollen.
    • Read more about Orchard Grass
  • Bermuda

    Bermuda
    Bermuda grass is is prevalent in Grand Junction and Delta, but becomes less common at elevations equivalent to Montrose or higher.
    • Read more about Bermuda

Tree

  • Cottonwood

    Large Fremont Cottonwood in Grand Junction
    Cottonwood is one of the top three pollinating trees in the Grand Junction, Montrose, Delta area. It peaks in mid-to-late March and early April, between Elm and Juniper.
    • Read more about Cottonwood
  • Juniper

    Juniper
    These shrubs pollinate in early March, about one month earlier than their higher elevation natural Juniper counterparts.
    • Read more about Juniper
  • Siberian Elm

    Siberian Elm
    Elm is one of the most common aeroallergens to trigger symptoms among allergy sufferers in Western Colorado and it holds a special spot as one of our "Top 3 Tree Pollens," sharing company with Juniper and Cottonwood.
    • Read more about Siberian Elm

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The pollen count for Grand Junction, Colorado, is provided by a dedicated group of board certified allergists, specializing in the treatment of adult and pediatric allergy, asthma and immunology.

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