Thume Blue Spruce

Thume Blue Spruce

(Photo courtesy of NetPS Plant Finder)

* This is a “special order” plant – contact store for details

Height: 8 feet

Spread: 8 feet

Sunlight:

Hardiness Zone: 2b

Other Names: Blue Colorado Spruce;Colorado Blue Spruce

Description:

A highly desirable and popular dwarf blue spruce that grows very dense while retaining its distinctively conical shape; needles emerge a beautiful silver and retain a powdery-blue color throughout the season, an ideal choice for the garden designer

Ornamental Features

Thume Blue Spruce has attractive powder blue foliage which emerges silvery blue in spring. The needles are highly ornamental and remain powder blue throughout the winter. Neither the flowers nor the fruit are ornamentally significant.

Landscape Attributes

Thume Blue Spruce is a dense multi-stemmed evergreen shrub with a distinctive and refined pyramidal form. Its relatively fine texture sets it apart from other landscape plants with less refined foliage.

This is a relatively low maintenance shrub. When pruning is necessary, it is recommended to only trim back the new growth of the current season, other than to remove any dieback. Deer don’t particularly care for this plant and will usually leave it alone in favor of tastier treats. It has no significant negative characteristics.

Thume Blue Spruce is recommended for the following landscape applications;

  • Mass Planting
  • General Garden Use

Planting & Growing

Thume Blue Spruce will grow to be about 8 feet tall at maturity, with a spread of 8 feet. It has a low canopy with a typical clearance of 1 foot from the ground, and is suitable for planting under power lines. It grows at a slow rate, and under ideal conditions can be expected to live for 60 years or more.

This shrub does best in full sun to partial shade. It is very adaptable to both dry and moist growing conditions, but will not tolerate any standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for xeriscaping or the moisture-conserving landscape. It is not particular as to soil type or pH, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. This is a selection of a native North American species.

* This is a “special order” plant – contact store for details

Hoopsii Blue Spruce

Hoopsii Blue Spruce

(Photo courtesy of NetPS Plant Finder)

Hoopsii Blue Spruce foliage

Hoopsii Blue Spruce foliage

(Photo courtesy of NetPS Plant Finder)

Height: 39 feet

Spread: 6 feet

Sunlight:

Hardiness Zone: 2a

Other Names: Blue Colorado Spruce;Colorado Blue Spruce

Description:

A shimmering blue evergreen accent tree, narrowly spire-shaped with large stout branches and long, very pointy silvery-blue needles, a tree of great beauty and color which is retained throughout the year; extremely hardy and rugged

Ornamental Features

Hoopsii Blue Spruce has attractive silvery blue foliage. The needles are highly ornamental and remain silvery blue throughout the winter. Neither the flowers nor the fruit are ornamentally significant. The rough gray bark adds an interesting dimension to the landscape.

Landscape Attributes

Hoopsii Blue Spruce is a dense evergreen tree with a strong central leader and a distinctive and refined pyramidal form. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition.

This is a relatively low maintenance tree. When pruning is necessary, it is recommended to only trim back the new growth of the current season, other than to remove any dieback. Deer don’t particularly care for this plant and will usually leave it alone in favor of tastier treats. It has no significant negative characteristics.

Hoopsii Blue Spruce is recommended for the following landscape applications;

  • Accent
  • Vertical Accent

Planting & Growing

Hoopsii Blue Spruce will grow to be about 39 feet tall at maturity, with a spread of 6 feet. It has a low canopy, and should not be planted underneath power lines. It grows at a slow rate, and under ideal conditions can be expected to live for 80 years or more.

This tree should only be grown in full sunlight. It is very adaptable to both dry and moist growing conditions, but will not tolerate any standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for xeriscaping or the moisture-conserving landscape. It is not particular as to soil type or pH, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. This is a selection of a native North American species.

Colorado Spruce, Blue Spruce ‘Hoopsii’

Category:

Trees

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Full Sun

Foliage:

Grown for foliage

Evergreen

Provides Winter Interest

Foliage Color:

Blue-Green

Height:

30-40 ft. (9-12 m)

over 40 ft. (12 m)

Spacing:

20-30 ft. (6-9 m)

Hardiness:

USDA Zone 3a: to -39.9 °C (-40 °F)

USDA Zone 3b: to -37.2 °C (-35 °F)

USDA Zone 4a: to -34.4 °C (-30 °F)

USDA Zone 4b: to -31.6 °C (-25 °F)

USDA Zone 5a: to -28.8 °C (-20 °F)

USDA Zone 5b: to -26.1 °C (-15 °F)

USDA Zone 6a: to -23.3 °C (-10 °F)

USDA Zone 6b: to -20.5 °C (-5 °F)

USDA Zone 7a: to -17.7 °C (0 °F)

USDA Zone 7b: to -14.9 °C (5 °F)

USDA Zone 8a: to -12.2 °C (10 °F)

USDA Zone 8b: to -9.4 °C (15 °F)

Where to Grow:

Unknown – Tell us

Danger:

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Inconspicuous/none

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Bloom Size:

Unknown – Tell us

Bloom Time:

N/A

Other details:

Unknown – Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown – Tell us

Propagation Methods:

By grafting

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Regional

This plant has been said to grow in the following regions:

Tuscaloosa, Alabama

North Tonawanda, New York

Cincinnati, Ohio

Cleveland, Ohio

Bainbridge Island, Washington

Picea pungens “Super Blue”

  • Conifers have woody stems (i. e. tree trunk and branches) and are also called woody plants or trees. Their leaves are transformed into needles or scales, usually being hard and leathery.

  • Woody plant, normally with a remarkable tree trunk and a tree top. May have several stems – multistemmed tree. The tree top may be of different shapes, dense or thin, symetric or uneven. Most trees reach a height of more than 3 metres.

  • Leaves or needles remain on the plant for several consecutive years, usually 2 to 5 years. Our descriptions contain the word evergreen.

  • Plant can in otherwise appropriate environment survive cold down to – 23 °C.

  • These plants grow well in sun or in partial shade. Usually they tolerate more sun and heat if given enough moisture; in partial or light shade they need less moisture.

  • Porous or dry soils are normally light and loose, there is no stagnant water but relatively quickly flows in deeper layers; such ground are more airy and warmer, yet drier and usually contain less humus and for such undergrowth it is often to for drought to appear (e. g. rockgardens, walls, by paths and roads, on gravel, also on gravel surface in towns and close to buildings …), plants of such undergrowth need well-drained soil, they tolerate drought but cannot tolerate constant moisture or even flooding.

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