“Nature paints in swaths of one plant, then another, and puts
smidgens of them somewhere else,” says landscape architect John
Herbst. He followed that observation to create the look of an alpine
meadow when remodeling the front of his house in Lake Oswego, Oregon.
In the sloping garden, he planted bands of ground covers and
compact, low-growing shrubs accented with boulders, then punctuated the
rolling, low masses with taller shrubs and trees. The result is a
gentle garden with subtle textures and year-round color.
Before, a driveway had swept within 15 feet of the house. Herbst
pulled the driveway back and redirected it to approach the house less
abruptly. He then regraded the entry and improved the soil, using
mushroom compost for annual beds and a mix of nitrogen-fortified wood
shavings for the acid-loving plants.
Rather than create a formal, geometric plan, Herbst designed
eye-catching curves and swoops. A bermed peninsula to the left of the
graveled parking area partially blocks the view of the garage and puts
the focus on the entry walk. The main walking surface is exposed
aggregate, with ragged edges that seem to fracture into layers of shale.
Rich, green Irish moss (Sagina subulata) grows in the gaps and softens
the sharp edges.
Though the walkway looks 5 to 7 feet wide, it actually extends 12
to 18 inches farther on both sides, creating a hidden lip to support the
shale. To form the walkway’s angular, irregular edges, Herbst used
aluminum flashing. He bent the flashing where he wanted, put it in
place, and secured it with staples shot into slender stakes spaced about
6 inches apart and at every bend.
Between the concrete and shale, he left voids for soil–planting
pockets for moss that extend into the garden and wrap around boulders
brought to the site.
Farther from the walk, he switched to masses of bearberry cotoneaster (C. dammeri), heath (Erica carnea ‘Vivelli’), and
low-growing Juniperus horizontalis ‘Wiltonii’ and macrantha
azaleas. Smaller clumps of sedums, Mentha requienii, and alpine bulbs
border rocky areas.
Low-growing annuals tucked in among permanent plants provide color
all year. In summer, Herbst plants geraniums, lobelia, and petunias.
He switches to chrysanthemums for fall color, then to flowering kale in
winter and early spring.