Sun Valley Maple Tree

Acer rubrum 'Sun Valley'

The Sun Valley Maple is a brilliantly colored, exceptionally symmetrical deciduous shade tree celebrated for its reliable, jaw-dropping autumn transformation. Developed by the U.S. National Arboretum, this elite native selection features a perfectly uniform, densely branched ovate canopy that makes it a spectacular specimen for modern yards. Emerging with subtle red highlights in the spring, its classic three-lobed leaves remain a rich, glossy green all summer before exploding into a long-lasting, uniform blaze of fiery scarlet and burgundy-red in the fall.

Because it is a strictly male variety, it will never drop messy seeds or produce unwanted saplings, making it an incredibly neat and clean legacy tree for your landscape. Perfectly sized to provide premium shade without overpowering your space, the Sun Valley Maple delivers peak seasonal drama with low-maintenance ease.

Mother Nature's Endorsement

How this native powerhouse pays it forward to your local ecosystem.

• The Early Pollinator Oasis: Features dense clusters of early spring flowers that serve as a critical, life-saving nectar source for native bees and pollinators waking up from winter.

• The Avian Sanctuary: The symmetrical, tightly branched crown provides prime nesting real estate and protective cover for local songbirds.

• Precision Summer Cooling: Casts a dense, cool shade perfectly positioned to reduce summer heat buildup around patios, driveways, or lawns.

• Rain Garden Resilience: Its deep appreciation for moisture makes it an exceptional choice for absorbing runoff, stabilizing low spots, and filtering stormwater naturally.

The Honest Harvest

What to expect when welcoming this legacy tree to your land.

The Perks:

• Features a spectacular, highly reliable autumn color show that stays brilliant longer than standard maples.

• A certified male selection, meaning 100% seedless with absolutely zero messy pod drop or volunteer seedlings to pull.

• Exhibits fantastic built-in genetic resistance to potato leafhoppers, a pest that frequently damages other red maples.

• An ideal medium-to-compact footprint, allowing it to fit beautifully into smaller residential lawns and streets.

• Extremely cold-hardy and remarkably tolerant of heavy clay, urban conditions, and periodic wet soil.

The Caveats:

• Like most red maples, it has a shallow root system and should not be planted immediately next to sidewalks, patios, or driveways to prevent future surface buckling.

• Prefers acidic to slightly acidic soils; alkaline soils can cause its leaves to experience minor yellowing (chlorosis).

• While it loves moisture, it will require supplemental watering during its first few summers to establish properly if planted in exceptionally dry zones.

• Requires strategic structural pruning when young if you desire a higher canopy clearance for foot traffic underneath.

• Branches can be sensitive to severe ice or high-wind storms if not pruned for strong crotch angles early on.

Specifications

Planting & Care Guide

• Initial Soak: Drench the root system thoroughly both before putting it in the ground and immediately after planting to minimize transplant shock.

• Handle with Care: Dig your planting hole twice as wide as the root ball, keeping the top of the root flare perfectly level with the surrounding soil.

• Mulch Magic: Apply a 3- to 4-inch layer of organic mulch around the tree's base to lock in moisture, ensuring you leave a few inches of clear space directly around the trunk wood.

• Establishment Era: Maintain a consistent, deep watering schedule weekly during its first two growing seasons, especially during dry summer spells.

• Easy Grooming: Only prune in late summer or early autumn. Avoid late winter or spring pruning, as maples will safely but heavily bleed sap at that time.

• Light Feed: Apply a balanced, slow-release tree fertilizer in early spring to encourage healthy, uniform canopy growth.

The Sun Valley Maple is a highly reliable, seedless native masterpiece engineered for unmatched autumn brilliance and neat, predictable growth. Exceptionally structured and easy to care for, it provides the perfect balance of cooling summer shade and jaw-dropping fall color for your property.