The Best Shrubs for March Planting in the Pacific Northwest

As winter loosens its grip and spring begins to emerge, March is the perfect time to plant shrubs in the Pacific Northwest. With the region’s mild climate and frequent rainfall, new plantings can establish strong root systems before the heat of summer arrives. Whether you’re looking to add structure, color, or wildlife appeal to your garden, here are some of the best shrubs to plant in March, complete with their botanical and common names, along with maintenance and care tips to ensure their success.

1. Rhododendron (Rhododendron spp.)

Why Choose Rhododendrons?

Rhododendrons are iconic in Pacific Northwest gardens. These evergreen shrubs provide lush foliage year-round and stunning clusters of blooms in spring. Available in a wide range of colors, from whites and pinks to deep purples, they’re ideal for creating visual interest.

Planting & Care Tips:

• Soil: Prefers acidic, well-draining soil rich in organic matter.
• Light: Partial shade is ideal, though some varieties tolerate full sun in cooler areas.
• Watering: Keep soil consistently moist but not waterlogged, especially during dry spells.
• Pruning: Remove spent flowers and dead branches after flowering to encourage new growth.

2. Red Twig Dogwood (Cornus sericea) 

Why Choose Red Twig Dogwood?

Known for its striking red stems that stand out in the winter landscape, Red Twig Dogwood adds year-round interest. Its white flowers in spring and summer berries attract pollinators and birds, making it a fantastic choice for wildlife-friendly gardens.

Planting & Care Tips:

• Soil: Thrives in moist, well-draining soil but tolerates occasional flooding.
• Light: Full sun to partial shade.
• Watering: Requires regular watering, especially during dry periods.
• Pruning: Cut back older stems in late winter or early spring to maintain vibrant stem color.

3. Japanese Pieris (Pieris japonica) 

Why Choose Japanese Pieris?

This elegant evergreen shrub features cascading clusters of bell-shaped flowers in shades of white, pink, or red during early spring. Its glossy foliage often has reddish new growth, adding to its ornamental appeal.

Planting & Care Tips:

• Soil: Prefers acidic, well-draining soil similar to rhododendrons.
• Light: Thrives in partial to full shade.
• Watering: Maintain consistent moisture, especially during dry periods.
• Pruning: Lightly prune after flowering to maintain shape.

4. Oregon Grape (Mahonia aquifolium) 

Why Choose Oregon Grape?

A native to the Pacific Northwest, Oregon Grape is a low-maintenance evergreen shrub that produces clusters of yellow flowers in early spring, followed by edible blue-black berries. Its holly-like foliage provides year-round interest and supports local wildlife.

Planting & Care Tips:

• Soil: Adapts to most soil types, including poor or rocky soils.
• Light: Full sun to partial shade.
• Watering: Drought-tolerant once established but benefits from occasional watering during dry spells.
• Pruning: Minimal pruning required; remove damaged or leggy branches as needed.

5. Heavenly Bamboo (Nandina domestica) 

Why Choose Heavenly Bamboo?

Despite its name, Heavenly Bamboo is not a true bamboo but a versatile shrub prized for its feathery foliage that changes colors with the seasons. Red berries and white flowers add additional visual appeal.

Planting & Care Tips:

• Soil: Tolerates a range of soils but prefers well-draining conditions.
• Light: Full sun to partial shade.
• Watering: Water regularly during the first growing season; drought-tolerant once established.
• Pruning: Remove older canes and trim to maintain a tidy appearance.

6. Azalea (Rhododendron spp.) 

Why Choose Azaleas?

A close relative of rhododendrons, azaleas bring vibrant spring blooms in a variety of colors, from fiery reds to soft pastels. They’re perfect for adding a pop of color to shady garden corners.

Planting & Care Tips:

• Soil: Requires acidic, well-draining soil enriched with organic matter.
• Light: Partial shade is best, though some varieties tolerate more sun.
• Watering: Keep soil consistently moist but not soggy.
• Pruning: Prune after flowering to maintain shape and encourage healthy growth.

7. Boxwood (Buxus spp.) 

Why Choose Boxwood? 

Boxwoods are versatile evergreen shrubs often used for hedges, borders, or topiary. Their dense foliage and slow growth make them ideal for creating structure in your garden.

Planting & Care Tips:

• Soil: Prefers well-draining soil with a neutral to slightly alkaline pH.
• Light: Full sun to partial shade.
• Watering: Water deeply but infrequently; avoid letting the roots sit in water.
• Pruning: Shape as desired, typically in late spring or early summer.

By planting these shrubs in March, you’ll set the stage for a thriving, beautiful garden that will enhance your landscape throughout the year. Choose varieties that suit your garden’s light and soil conditions, and you’ll enjoy their beauty and benefits for seasons to come. Visit als-gardencenter.com for the best selection of trees and shrubs.