Oregon Grape Mahonia "Underway"
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Oregon Grape Mahonia "Underway"

Oregon Grape Mahonia "Underway"

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Mahonia x media 'Underway'


A new addition this year to our selection and your soon to be garden collection, the Underway Mahonia is less well known than most mahonias and has a rather compact nature with an upright growth habit. Its mature size reaches around our estimated measurements of 6 ft high and 5 ft wide, but is variable based on growing location and care. They are most notably grown for their spiky, pinnate, holly-like foliage which features long upright blooming racemes which burst with golden, lemon-yellow flowers. This beautiful combination of color and texture make mahonias in general very practical for decorative purposes as well as for function as a border or hedge in landscaping and gardening. An interesting fact about the Oregon Grape varieties is that they produce these grape-like berries which are used in some regions to make jams and jellies. They are edible but very tart.

Hardiness Map
Mature Height: 6'
Mature Width: 5'
Flower Season: Winter
Sun: Full Shade
Hardiness Zone: 6 to 9
This plant is suitable for the low temperates below:
Temp (F)
Temp (C)
-10 to 0
-23.3 to -17.8
0 to 10
-17.8 to -12.2
10 to 20
-12.2 to -6.7
20 to 30
-6.7 to -1.1