Visitor walking down grey pathway surrounded by green grass and trees with leaves turning shades of gold and orange.

Conifer Arboretum

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Arthur and Janet Ross Conifer Arboretum
Year-Round

The Arthur and Janet Ross Conifer Arboretum is a piece of living history. These irreplaceable trees were among the first planted at the Garden in the early 1900s, making them the oldest and among the most distinguished of the Garden’s collections.

Planted across 37 acres between the Conservatory and the Library building, this majestic collection features more than 250 mature pines, spruces, and firs native to the alpine forests of the American west, the windswept shores of Japan, and the boreal forests of Alaska.

With needles ranging from bright green to powder blue, the evergreens of the Ross Conifer Arboretum offer wonderful color and texture in all seasons.

Season Galleries

  • Guests walking down a pathway surrounded by tall green trees and green grass.
  • Pine cones on tree branches with green pine needles and a light dusting of white snow.
  • Top of a tall tree with bare branches and branches with very little green foliage below clear blue skies.
  • Lightly snow dusted green grass below tall green trees.
  • Tall trees with bare branches and green leaves amongst green grass.
  • Two guests walking down a pathway surrounded by tall green trees and green grass.
  • Closeup of light and dark green pine needles on pine tree.
  • Blue skies above green and pink trees on green grass.
  • Long pathway surrounded by green grass and tall green trees.
  • Green grass covered in trees sprouting green leaves and small pink flowers below blue, partly cloudy skies.
  • Two guests walking down long pathway surrounded by bare trees in the distance, tall green trees, small green bushes and green grass.
  • Aerial view of long pathway surrounded by green grass and trees, and lined with small yellow and red flowers.
  • Tall brown tree trunks amongst green foliage, small green bushes and soil at the base of the trees.
  • Pathway lined by green grass, yellow and red flowers, and tall, dark green pine trees in the distance.
  • Large, light brown tree with widespread, bare tree branches above brown mulch and green grass, alongside a pathway.
  • Tall brown pine tree trunk and long, extending tree branches with green pine leaves showing.
  • Pine cones on tree branches with rays of sunlight peeking through.
  • Green tree on a hill of green grass below blue skies.
  • Tall brown tree with brown branches spreading out sprouting green pines above light brown mulch.
  • Blue skies above green trees on a hill of green grass with light brown mulch at the bottom of the trees.
  • The tops of green trees and bare tree branches below partly cloudy blue skies.

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