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Ornamental Tree · Moderate

How to Grow Japanese Maple Emperor One

Acer palmatum 'Emperor One'

Your complete guide to growing Japanese Maple Emperor One.

☀SunDappled Sunlight
💧Water1 inch per week, consistent moisture preferred
🗺Zones5–8
📏Height15-25 feet
Japanese Maple Emperor One📷 Wikipedia: Acer palmatum

When to Plant Japanese Maple Emperor One

Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.

ZoneStart IndoorsDirect SowHarvest
Zone 5 — — —
Zone 6 — — —
Zone 7 — — —
Zone 8 — — —

Companion Plants for Japanese Maple Emperor One

✓ Good companions

Astilbe

Enjoys same moisture and shade requirements, adds colorful plumes without competing

Azalea

Similar acidic soil requirements and shallow root systems don't compete heavily

Camellia

Both prefer acidic soil and filtered light, blooms complement maple's structure

Heuchera

Tolerates shade well and provides year-round foliage interest at ground level

Hostas

Thrives in similar partial shade conditions and provides complementary foliage texture

Japanese Painted Fern

Shares cultural preferences and adds silver-gray foliage contrast

Moss

Naturally grows in same conditions and helps retain soil moisture

Rhododendron

Compatible soil pH needs and provides spring blooms before maple leafs out

✗ Keep away from

Black Walnut

Produces juglone which is toxic to many plants including Japanese maples

Eucalyptus

Allelopathic properties inhibit growth of nearby plants

Large Oak Trees

Deep roots compete aggressively for water and nutrients, can overshadow maple

Notes from the garden

A greener inbox, occasionally.

Seasonal planting ideas, useful tips and a little inspiration. No weeds.