Fraxinus sp. (Ash)

 
 
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Fraxinus americana ‘Tuxedo’
Tuxedo White Ash

Recommendation: planted in trial in 2007.
Trial Average: Height: --- ;Spread: ---
Form: upright tree.
Features:---.
Culture: ---
Fraxinus mandschurica
Manchurian Ash

.
Recommendation: recommended at Grande Prairie, Bowden and Calgary, failed to establish at Edmonton and Brooks, growth at Coaldale was affected by high pH soil. Does not tolerate strong weed competition. Retrial recommended in Edmonton, plants are known to do well there and at Devon.
Trial Average:
Height: 2.5 m (4 locations only); Spread: 1.5 m (4 locations only)
Form:
compact, uniform, oval crown.
Features:
green leaves, buds break early, yellow fall color.
Culture:
tolerates drought and excess moisture, does not tolerate high pH soil, leafs out early making it susceptible to late spring frost.

Site
Grande Prairie
Edmonton
Lacombe
Bowden
Calgary
Brooks
Coaldale 1
Trial Period
85 - 94
85 - 95
85 - 89
85 - 94
85 - 91
85 - 91
Height-Spread
254 - 126
303 - 194
251 - 153
201 - 123
Rating
4.9
4.1
4.4
2.7
Recommendation
H
F
R
R
F
S

Fraxinus nigra
Black Ash



.
Recommendation: highly recommended in Edmonton and Lacombe, recommended in all other locations. Ash bark beetle a problem in the southern locations in the late 80's.
Trial Average:
Height: 3.1 m; Spread: 1.2 m
Form:
uniform, narrowly pyramidal, upright tree.
Features:
green leaves, which last longer in fall than other ash species.
Culture:
adapts to a wide range of soils, prefers wet areas in the wild.
.
Site
Grande Prairie
Edmonton
Lacombe
Bowden
Calgary
Brooks
Coaldale 1
Trial Period
87 - 94
87 - 94
87 - 94
87 - 94
85 - 94
85 - 91
87 - 94
Height-Spread
266 - 65
416 - 172
234 - 66
276 - 94
296 - 140
403 - 191
266 - 101
Rating
4.7
4.8
5.0
4.2
4.0
4.4
4.4
Recommendation
R
H
h
R
R
R
R

Fraxinus nigra
Black Ash 'Brendan's Selection'


Recommendation: Highly recommended in Brooks and recommended in Red Deer, Calgary and Coaldale where occasional winter tip kill had been noted. Not recommended in Edmonton and Bowden where all plants were lost or in Fairview where the only surviving plant suffered much dieback. This selection was made from trees which were sent as seedlings to the City of Edmonton from the breeding program at Agriculture and Agri-Food Canada, Morden, MB by Dr. W. Ronald. Selections were made by B. Casement and R. Nyroos (former city of Edmonton forester).
Trial Average:
Height: 2.6 m; Spread: 1.4 m
Form:
uniform, narrowly-pyramidal, upright tree.
Features:
green leaves, which last longer in fall that other ash species.
Culture:
may loose terminal bud which can form double leader. Pruning may be required to maintain a single leader.

Site
Fairview
Edmonton
Bowden
Red Deer
Calgary
Brooks
Coaldale 2
Trial Period
97 - 02
97
97
97 - 01
97 - 02
97 - 02
97 - 02
Height - Spread
84 - 50
150 - 95
421 - 185
395 - 142
260 - 214
Rating
1
3.2
3
3.8
3
Recommendation
N
N
N
r
R
H
R

Fraxinus nigra 'Fallgold'
Fallgold Black Ash


.
Recommendation: recommended at all locations, trees were severely damaged in a hard spring frost in Brooks.
Trial Average:
Height: 2.8 m; Spread: 1.1 m
Form:
uniform, upright tree.
Features:
green leaves, golden in fall, leaves last longer in fall than other ash species. Culture: seedless selection, adapts to a wide range of soils, disease free.
Site
Grande Prairie
Edmonton
Lacombe
Bowden
Calgary
Brooks
Coaldale 1
Trial Period
86 - 94
84 - 91
84 - 89
84 - 89
84 - 91
84 - 91
86 - 91
Height-Spread
259 - 66
264 - 158
355 - 126
298 - 102
255 - 104
326 - 125
229 - 78
Rating
5
4.3
4.4
3.8
4.4
1.8
3.3
Recommendation
H
R
R
R
R
F
R

Fraxinus pennsylvanica
Green Ash

Recommendation: recommended at all locations, all trees were seedlings.
Trial Average:
Height: 2.8 m; Spread: 1.9 m
Form: rounded crown, dense foliage.
Features: green leaves, yellow fall color.
Culture:
survives well in urban locations, full sun. Seeds provide an excellent food source for wildlife.

Site
Grande Prairie
Edmonton
Lacombe
Bowden
Calgary
Brooks
Coaldale 1
Trial Period
83 - 88
83 - 88
84 - 88
84 - 89
83 - 88
83 - 91
84 - 91
Height-Spread
273 - 182
249 - 129
251 - 165
470 - 418
253 - 170
164 - 74
Rating
4.9
5.0
5.0
4.1
3.8
3.2
4.0
Recommendation
H
H
H
R
R
R
R

Fraxinus pennsylvanica
Green Ash 'Brendan's Selection'


Recommendation: Highly recommended in Edmonton and Brooks, though terminal buds were lost on some plants in both locations and recommended in Calgary and Coaldale. Satisfactory in Red Deer where plants suffered dieback and not recommended in Fairview and Bowden where the plants were lost. These selections were made from trees which were sent as seedlings to the City of Edmonton from the breeding program at Agriculture and Agri-Food Canada, Morden, MB, by Dr. W. Ronald. Selections were made by B. Casement and R. Nyroos (former city of Edmonton forester).
Trial Average:
Height: 3.5 m; Spread: 3.1 m
Form:
rounded crown, dense foliage
Features:
green leaves, yellow fall color
Culture:
may loose terminal bud which cause a double leader to form. Pruning may be required to maintain single leader.

Site
Fairview
Edmonton
Bowden
Red Deer
Calgary
Brooks
Coaldale 2
Trial Period
97
97 - 01
97
97 - 01
97 - 02
97 - 02
97 - 02
Height - Spread
344 - 156
156 - 668
457 - 251
445 - 225
338 - 240
Rating
4.4
2.2
3
4
2.7
Recommendation
N
h
N
s
R
H
R

Fraxinus pennsylvanica 'Bergeson'
Bergeson Ash (PP4904)


Recommendation: recommended at Edmonton and Brooks. Severe winter kill in Fairview and Red Deer. Plants were difficult to establish in Edmonton then performed well. Tarnished plant bug and some dieback were noted in Brooks. Not tried at Calgary and Coaldale. Introduced by M. Bergeson, Fertile, MN.
Trial Average:
Height: 347 cm; Spread: 159 cm
Form:
upright and rounded tree with open crown, vigorous growth, seedless.
Features:
slender, glossy green leaves, yellow in fall, soft bronze tinge to bark.
Culture:
specimen or boulevard tree.


Site
Fairview
Edmonton
Red Deer
Bowden
Calgary
Brooks
Coaldale 2
Trial Period
95 - 00
95 - 00
95 - 00
95 - 00
95 - 00
Height-Spread
214 - 114
469 - 202
234 - 80
484 - 241
Rating
3
4
3
4
Recommendation
N
R
N
N
R

Fraxinus pennsylvanica 'Foothills'
Foothills Ash




Recommendation: Highly recommended in Calgary, Brooks, Coaldale and Edmonton - trees were removed in Edmonton after 2001. Recommended in Red Deer though double leaders had formed on 3 plants. Trees were shrubby in Fairview with many leaders and is not recommended. Selected by A. Heuver of Foothills Nursery, Calgary, AB.
Trial Average:
Height: 4.1 m; Spread: 2.5 m
Form:
uniform tree with straight trunk and good crown.
Features:
green leaves, seedless, good fall color.
Culture:
pruning may be required if double leader forms if the terminal bud is lost.
.

Site
Fairview
Edmonton
Red Deer
Calgary
Brooks
Coaldale 2
Trial Period
98 - 03
98 - 01
98 - 03
98 - 03
98 - 03
98 - 03
Height-Spread
141 - 78
391 - 217
326 - 174
567 - 364
386 - 249
543 - 347
Rating
1.7
5
3.4
4.6
4
4
Recommendation
N
h
R
H
H
H
.
Fraxinus pennsylvanica 'Jordan'
Jordan Ash




Recommendation: recommended at all locations, but dull foliage and production of seeds limits value somewhat. Some initial winter kill in Fairview, but plants recovered and performed well. Tarnished plant bug noted each year at Brooks and Coaldale.
Trial Average:
Height: 424 cm; Spread: 274 cm
Form:
upright and oval.
Features:
dull light green leaves.
Culture:
full sun or partial shade, specimen or boulevard tree.

Site
Fairview
Edmonton
Red Deer
Bowden
Calgary
Brooks
Coaldale 2
Trial Period
95 - 00
95 - 00
95 - 00
95 - 00
95 - 00
95 - 00
95 - 00
Height-Spread
303 - 242
479 - 274
375 - 201
450 - 260
463 - 397
447 - 285
453 - 262
Rating
4
5
5
5
5
4.5
4
Recommendation
R
R
R
R
R
R
R

Fraxinus pennsylvanica 'Leeds'
Prairie Dome ® Ash




Recommendation: Highly recommended in Edmonton and Calgary and recommended in Red Deer, Brooks and Coaldale. Plants preformed poorly in Fairview and Bowden. Introduced by the North Dakota State University.
Trial Average:
Height: 3.6 m; Spread: 1.1 m
Form:
formal, globe-shaped tree.
Features:
glossy, dark green leaves, yellow in fall.
Culture:
may loose terminal bud which can form double leader. Pruning may be required to maintain single leader.


Site
Fairview
Edmonton
Red Deer
Bowden
Calgary
Brooks
Coaldale 2
Trial Period
97 - 02
97 - 01
97 - 01
97 - 01
97 - 02
97 - 02
97 - 02
Height-Spread
140 - 83
410 - 106
134 - 25
355 - 65
620 - 240
423 - 135
445 - 149
Rating
1
4.6
1
3
4.2
3.4
3.2
Recommendation
N
h
N
r
H
R
R


Fraxinus pennsylvanica 'Patmore'
Patmore Green Ash (PP4684) (COPF)


Recommendation: recommended at all locations but failed at Edmonton due to late spring frost.
Trial Average:
Height: 3.2 m; Spread: 2.3 m
Form:
oval crown with straight trunk.
Features:
shiny green leaves, yellow fall color, seedless.
Culture:
survives well in urban locations, full sun.

Site
Grande Prairie
Edmonton
Lacombe
Bowden
Calgary
Brooks
Coaldale 1
Trial Period
84 - 91
84 - 94
84 - 89
84 - 89
84 - 91
84 - 91
84 - 91
Height-Spread
280 - 182
348 - 260
326 - 204
185 - 214
363 - 208
401 - 305
347 - 203
Rating
4.6
5.0
3.5
4.5
3.8
4.5
Recommendation
H
F
H
R
R
R
H

Fraxinus pennsylvanica 'Plains'
Plains Green Ash


Recommendation: planted in trial in 2002. Selected at PFRA, Indian Head, Saskatchewan.Satisfactory in Fairview only, not recommended in all other sites. Most specimens survived well at all sites but with very poor growth habits and form. Trees at Fairview had slower growth resulting in better form.
Trial Average:
Height: 3.4 m ; Spread:4.2 m
Form:
oval crown with straight trunk.
Features:
fast growing green ash.
Culture:
Poor growth habits and double leaders requiring extensive pruning. Not a good tree for most areas.

Site
Fairview
Red Deer
Calgary
Brooks
Coaldale 2
Trial Period
02 - 07
02 - 07
02 - 07
02 - 07
02 - 07
Height-Spread
2.6 – 1.7
2.7 – 1.7
3.8 – 2.6
4.2 – 2.9
3.7 – 2.4
Rating
2.7
2
1
2.2
1.8
Recommendation
S
N
N
N
N

Fraxinus pennsylvanica 'Rugby'
Prairie Spire® Ash




Recommendation: Highly recommended in Edmonton, Red Deer and Brooks and recommended at Calgary and Coaldale. Plants did not preform well in Fairview and Bowden. Introduced by the North Dakota State University.
Trial Average:
Height: 3.8 m; Spread: 1.2 m
Form:
narrow, pyramidal tree.
Features:
green leaves, yellow-gold in fall, seedless selection.
Culture:
may lose terminal bud which can form double leader. Pruning may be required to maintain single leader.

Site
Fairview
Edmonton
Bowden
Red Deer
Calgary
Brooks
Coaldale 2
Trial Period
97 - 02
97 - 01
97 - 00
97 - 01
97 - 02
97 - 02
97 - 02
Height-Spread
157 - 89
483 - 108
220 - 40
461 - 156
482 - 213
530 - 318
339 - 175
Rating
1.4
4.8
1
4.6
3
4.2
2.4
Recommendation
N
h
N
h
R
H
R

Fraxinus x 'Northern Treasure'
Northern Treasure Ash (PPAF)




Recommendation: recommended in Red Deer, Calgary, Brooks and Coaldale. Satisfactory in Fairview and highly recommended in Edmonton though the plants were removed after the 2001 evaluation. Introduced by Agriculture and Agri-Food Canada, Morden, MB. A hybrid of Fraxinus nigra x Fraxinus mandshurica.
Trial Average:
Height: 3.4 m; Spread: 1.6 m
Form:
uniform tree with straight trunk and good crown.
Features:
shiny yellow-green foliage, gold fall color
Culture:
may require pruning to eliminate double leader if terminal bud is lost.


Site
Fairview
Edmonton
Red Deer
Calgary
Brooks
Coaldale 2
Trial Period
98 - 03
98 - 01
98 - 03
98 - 03
98 - 03
98 - 03
Height-Spread
204 - 75
312 - 168
272 - 128
479 - 270
455 - 270
383 - 160
Rating
2
5
3.2
3.6
4.5
3
Recommendation
S
h
R
R
R
R

Rating: 0-dead, 1-poor, low sprouts, 2-major dieback, 3-fair, injury to branches, 4-good, some tip kill, 5-excellent, no injury
Recommendations: H-Highly recommended, R-Recommended, S-Recommended with extra care, N-Not recommended, F-Failed due to unfavorable conditions.

 
 
 
 
For more information about the content of this document, contact Shelley Barkley.
This information published to the web on June 2, 2003.
Last Reviewed/Revised on December 20, 2013.