Photo of Colossal Seedling Chestnut foliage, seedpod by Forestfarm

Photo by Forestfarm

Used with permission, all rights reserved

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Colossal Seedling Chestnut

Scientific Name: Castanea 'Colossal' seedling

Also Known As

  • Castanea 'Colossal Seedling'

Plant type

tree

size

  • H: 25'-50'
  • W: 25'-50'

planting zones

  • 5a-9b

Colossal Seedling Chestnut plant details

Colossal Seedling Chestnut is a broadleaf deciduous tree with green foliage. In spring cream flowers emerge followed by brown fruit. Attracts bees making it an excellent addition to pollinator gardens. Grows well with sun and regular - occasional water. Does well in average, rich and well-drained soil.

CHARACTERISTICS OF Colossal Seedling Chestnut

Plant type: tree
Plant family: fagaceae
Foliage: deciduous green
Mature size: 25 FT - 50 FT - wide, 25 FT - 50 FT - tall
Flowers: cream blooms in spring
Uses: edible

GROWING CONDITIONS for Colossal Seedling Chestnut

USDA Zones: 5a - 9b
Sun exposure: sun
Watering frequency: regular - occasional
Soil needs: average, rich and well-drained

Nursery contributed plant descriptions

One of the largest chestnuts, this picturesque, wide spreading tree with its dentate leathery leaves and showy male catkins can reach 25-50' or larger at maturity. The original 'Colossal' tree was planted in California 1890 and was over 70' in 2000. This hybrid of Japanese and European Chestnuts is extremely productive with large sweet nuts that are consistently rated the best in taste tests; they are also easy to peel. This cultivar does show blight resistance. Two are needed for some pollination, but to really achieve high yields a pollinizer such as 'Maraval' or other suitable cultivar is required. Nuts that are not eaten soon after harvest can be bagged and refrigerated for later use. S/M

Gardening facts about Colossal Seedling Chestnut plant

How to Grow Colossal Seedling Chestnut

  • Sun Exposure

    • sun
  • Water Needs

    • regular - occasional
  • Soil Needs

    • average
    • well-drained
    • rich

Features

  • Foliage Color

    • green
  • Flower Color

    • cream
  • Wildlife

    • bees
  • Fruit

    • brown
  • Flower Season

    • spring
  • Foliage Season

    • deciduous

Landscape groups by tags

See other plant types of Castanea for your garden

aka Allegheny Chinquapin, American Chinquapin, Dwarf Chestnut

Plant Type

Tree

Zones

5a-9b

Size

Height: 20'-25'

Width: 6'-20'

  • sun - mostly shade
  • regular
Photo of Castanea pumila trunk by Salvor
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More Options

aka Castanea mollisima, Chinese Chestnut

Plant Type

Tree, Fruit / Vegetable

Zones

4a-8b

Size

Height: 40'-60'

Width: 60'

  • sun
  • regular - drought tolerant
Photo of Castanea mollissima foliage by Richard Webb
View Plant

More Options

Scientific Name: Castanea 'Colossal'

Plant Type

Tree

Zones

5a-9b

Size

Height: 25'-35'

Width: 25'-35'

  • sun
  • regular
Photo of Colossal Chestnut fruit by Danger Garden
View Plant

More Options

aka Chestnut

Plant Type

Tree

Zones

5a-8a

Size

Height: 75'

Width: 75'

  • sun
  • regular - occasional
Photo of Castanea dentata flower, foliage by Hoot Owl Hollow Nursery
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aka Spanish Chestnut

Plant Type

Tree

Zones

5a-9b

Size

Height: 30'-40'

Width: 30'

  • sun
Photo of Castanea sativa by Heritage Seedlings
View Plant

More Options

+3 more Castanea
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