Picea pungens ‘Hoopsii’ -- Hoops Colorado Blue Spruce

Common Name

Hoops Colorado Spruce

Origin

Nursery

Family

Pinaceae

Type

Evergreen conifer tree

ID Features

Bright steel blue color all the way through tree Tendency to form multiple leaders Peg-like projections Single needles stand out straight from branch (vs. needles pointed toward tip like P. abies) Needles are very stiff, long, & sharp Needles are square in cross-section (4 sides) & roll easily (vs. P. sitchensis, which has 3 sides & doesn’t roll) Holds needles 6 – 12 years—very dense

Size

Mature: 18 – 30’ H, 12 – 16’ S (~ 40% smaller than species)

Landscape: 6 – 12’ H, 4 – 8’ S (slow to start)

Growth rate: Slow to moderate (6 – 8” per year)

Form

Compact—stays small & bushy for a long time before developing tree form Has tendency to form multiple leaders (grafted from side branches); select single leader & prune others

habit photo
Picea pungens ‘Hoopsii’ habit

Bark & Branches

Bark is dark charcoal-colored, very flaky

bark photo
Picea pungens ‘Hoopsii’ bark

Foliage

Single needles longer (1 – 2” long), sharper, & stiffer stand out straight from branch, Peg-like projections Needles are very stiff, sharp, & pungent Needles are square in cross-section (4 sides) & roll easily (vs. P. sitchensis, which has 3 sides & doesn’t roll)Color: bright steel blue color all the way through tree Holds needles 6 – 12 years—very dense

foliage photo
Picea pungens ‘Hoopsii’ foliage

Cones

Oval cone (2½ - 5” long) at branch ends Color: tawny brown with yellow highlights Papery, rough-looking Scales are notched (vs. rounded fish scales of P. abies)

Cultural considerations

Hardiness

Sunset: A2, A3, 1 – 0, 14 – 17 (suffers in hot, dry summers)

USDA: 2 – 7

Exposure

Full sun

Soil

Well-drained soil best

Water

Prefers infrequent waterings Regular irrigation is ok with good drainage, but no flooding

Pests

Spruce Gall Adelgid: galls with tumor-like growths & needles resemble cones from a distance Spruce Aphid: defoliates branch tip & causes dieback; more of a problem with ‘Pendulum’ because aphids match the color of the spruce & are hard to spot

Diseases / Problems

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Pruning

Remove dead/damaged wood Select single leader & prune others to get cone-like form

Propagation

Graft

Use

Specimen conifer used for color

Other

Only a specialist can distinguish ‘Hoopsii’ from ‘Koster’, ‘Moerheim’, ‘Backker’ Shallow, fibrous root system Portland is probably too wet for these spruces

Links

Wikipedia -- Other Link

Credits

Photos taken by Jeff Kidder on the PCC Rock Creek campus, unless noted to the contrary.

Much of the text in the plant info was taken from handouts in the Evergreen Plant ID course.