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Niobe Weeping Willow

Salix alba

Compiled by · Reviewed against the 2024 Front Range Tree Recommendation List, CSU Extension & Plant Select® · Updated 2026-09-17

Niobe Weeping Willow (Salix alba) is a tree suited to the Colorado Front Range, rated "Recommended for Most Sites" on the 2024 Front Range Tree Recommendation List. It matures to about 50–70 ft tall and 50–70 ft wide, fast-growing, needs high water, and prefers full sun.

Site fitRecommended for Most Sites
high water50–70 ft tall and 50–70 ft wide

Photos

At a glance

Will it survive here?

Hardiness zones
USDA 3–8
Water needs
high water
Sun
Best in full sun.
Soil
clay, loam, sandy
Soil pH
6.0–8.2
Hail tolerance
moderate
Wind tolerance
low
Salt tolerance
moderate
Tolerates
Rain gardens

How big, what shape?

Mature size
50–70 ft tall and 50–70 ft wide
Mature form
Rounded
Spacing / clearance
~70 ft of clearance
Growth rate
Fast
Lifespan
Short-lived

What it looks like, and when

Foliage
Deciduous

Who else benefits

Pollinator value
high
Deer
Not deer-resistant
Colorado native
No

Site factors to consider

  • Critical: Cold HardinessThe average low suits it fine; our real cold risk is the swings, late frosts, and intense winter sun, so wrap young trunks and give it shelter.
  • Watch: Weak WoodBrittle wood that heavy spring snow and wind like to snap, so prune for strong structure and keep it clear of roofs, wires, and drives.

Common problems on the Front Range

  • Borers
  • Cytospora canker
  • Aphids and leaf beetles

These are general tendencies for this group of plants on the Front Range, not a diagnosis. Many are stress-driven and preventable with good siting and watering. For a specific plant or an active problem, consult a certified arborist or your local CSU Extension office.

Frequently asked questions

Is Niobe Weeping Willow good for the Colorado Front Range?
Yes, Niobe Weeping Willow is a well-suited tree for Colorado's Front Range, rated "Recommended for Most Sites" on the 2024 Front Range Tree Recommendation List.
How big does Niobe Weeping Willow get?
It matures to about 50–70 ft tall and 50–70 ft wide.
How much room does Niobe Weeping Willow need?
Give Niobe Weeping Willow about 70 ft of clearance from buildings, fences, and other trees so the mature canopy isn't crowded.
What shape does Niobe Weeping Willow grow into?
Niobe Weeping Willow typically grows into a broad, rounded crown, the classic shade-tree silhouette. This is the species' usual mature form, named cultivars (columnar, weeping, or compact selections) can differ, so check the specific cultivar.
Is Niobe Weeping Willow hardy on the Front Range?
Niobe Weeping Willow is hardy in USDA 3–8. The Colorado Front Range spans roughly USDA 4b–6a, so it is well within range. That said, it carries a cold-hardiness caution: The average low suits it fine; our real cold risk is the swings, late frosts, and intense winter sun, so wrap young trunks and give it shelter.
How much water does Niobe Weeping Willow need?
It needs high water once established.
How fast does Niobe Weeping Willow grow?
Niobe Weeping Willow is a fast-growing tree. Growth rate depends on water and site conditions on the Front Range.
How long does Niobe Weeping Willow live?
Niobe Weeping Willow is relatively short-lived for a tree, so plan to replace it sooner than a long-lived shade tree. Actual lifespan varies with site, water, and care.
Is Niobe Weeping Willow native to Colorado?
No. It is not a Colorado native, but it grows well on the Front Range.
Is Niobe Weeping Willow deer-resistant?
No. Niobe Weeping Willow is not considered deer-resistant and may need protection where deer browse.
Is Niobe Weeping Willow prone to pests or disease on the Front Range?
Niobe Weeping Willow can be affected by borers and other issues common to this group on the Front Range. These are general tendencies, not a diagnosis, many are stress-driven and preventable with good siting and watering. For a specific plant or an active problem, consult a certified arborist or CSU Extension.

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