Royal Red Maple

Product Code: mrred

Maple Royal Red (Acer platanoides 'Royal Red')
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Details

The Royal Red Maple (Crimson King) maple tree is the classic purple-leafed maple tree. It keeps its brilliant crimson color all summer long. It's a slow growing shade tree, but has a dense, broad oval form. This maple tree is extremely hardy. This maple tree does need well-drained soil. One of the more popular Norway maple tree types. Mature size is around 30-40' tall x 35' wide. Hardiness zone 4. This tree attracts game birds, squirrels, chipmunks, beaver, deer, and bears.

Planting & Care for Trees – Norway Maple

Preparation

  • The Royal Red Maple (Crimson King) maple tree is the classic purple-leafed maple tree.
  • It's a slow growing shade tree, but has a dense, broad oval form.
  • This maple tree is extremely hardy.
  • This maple tree does need well-drained soil.
  • One of the more popular Norway maple tree types.
  • Mature size is around 30-40' tall x 35' wide.
  • Hardiness zone 4.
  • It is highly tolerant of urban pollution and will even thrive in inner city environments.
  • Easily grown in average, medium moisture, well-drained soil in full sun to part shade. Best in full sun.
  • Norway maple has high tolerance to pollution and is adaptable to many soils including clay, sand or acidic conditions.
  • Adding a 3-inch layer of mulch helps the soil retain moisture and inhibits the growth of weeds. Pull the mulch back a few inches from the trunk to prevent rot.

Opening Plant Material

  • Grow Bags - Remove bag by using a utility knife to slit up the side and peel off the fabric exposing the soil and roots. Plant the root ball just like you would a container plant. No trimming of roots is necessary for grow bags.
  • Each type of plant has an illustration on how to plant if you scroll down and click on the orange rectangular box “Handling & Plant Guidelines”.

Planting Grow Bags

  • Plant grow bags in spring or fall.
  • Notice where the base of the trunk flairs out from the tree. This is called the root flair. This root flair should show when the tree is planted. If necessary, add soil under the ball so the root flair is exposed.
  • Place fertilizer packets into the bottom of the hole (if purchased). *Use Our Recommended Fertilizer.
  • Backfill the hole with soil, making sure the top of the root ball is visible and slightly higher than the soil around it.
  • Firm the soil around the plant. Water well to settle soil around the root ball.

Pruning - After Planting

  • Grow Bags - Although it is not essential for grow bags to be pruned after planting, a light pruning for shape, to remove any broken branches from shipping, or to thin out a heavily branched plant will help in the transplanting process and in the appearance of your new planting.

Pruning - Through-out the Season

  • Corrective pruning to remove dead, dying, and diseased branches should be done in winter.
  • Prune branches that grow into the center or rub against each other. Remove smaller branches up to two inches in diameter first. Sugar maple makes dense shade; removal of some branches in the center will let in sun and air. Cut small branches just outside the "collar", the thick fold of bark at the junction of the branch and its lateral. Cutting "flush" to the main branch injures the collar and cutting too far out leaves a "stub", both lengthening the healing time for the tree.

Watering - After Planting

  • Plants typically take approximately 6 weeks to establish new roots in your soil. During this period, water plants as often as every 2-4 days at the start and at least a minimum of once per week.
  • Beyond the 6 week establishment period, water once per week, unless rains occur.
  • Stick your finger into the soil around 3” to check soil moisture.

Watering - Through-out the Season

  • After the first season, plants should only be watered during extended periods without rain.
  • How do you know if your plants need water? The easiest way to tell is to touch the soil around the roots. If it is moist, there is no need to water. If it is dry, give it a good soaking with the hose end (no nozzle) watering the soil only, not the leaves.
  • Stick your finger into the soil around 3” to check soil moisture.

 

Go to our "Plant Features & Video Tab" for more information & tips on caring and maintaining this plant.

Handling & Planting Guidelines

Special Features & Videos for Norway Maple Trees

Special Plant Features & Tips

  • The Royal Red Maple (Crimson King) maple tree is the classic purple-leafed maple tree.
  • Attracts wildlife
  • It keeps its brilliant crimson color all summer long. It's a slow growing shade tree, but has a dense, broad oval form.
  • This maple tree is extremely hardy.
  • This maple tree does need well-drained soil.
  • One of the more popular Norway maple tree types.
  • Mature size is around 30-40' tall x 35' wide.
  • Hardiness zone 4.
  • This tree should only be grown in full sunlight.
  • It is highly tolerant of urban pollution and will even thrive in inner city environments.
  • The fall color is bright gold but one of the types of Norway maple trees, Crimson King, develops deep reddish fall tones.
  • Norway maple has high tolerance to pollution and is adaptable to many soils including clay, sand or acidic conditions.
  • Adding a 3-inch layer of mulch helps the soil retain moisture and inhibits the growth of weeds. Pull the mulch back a few inches from the trunk to prevent rot.
  • Corrective pruning to remove dead, dying, and diseased branches should be done in winter.
  • Prune branches that grow into the center or rub against each other. Remove smaller branches up to two inches in diameter first. Sugar maple makes dense shade; removal of some branches in the center will let in sun and air. Cut small branches just outside the "collar", the thick fold of bark at the junction of the branch and its lateral. Cutting "flush" to the main branch injures the collar and cutting too far out leaves a "stub", both lengthening the healing time for the tree.

How & When to Prune Trees

Popular Sizes
ItemApprox. Weight (lbs.)Approx. Base DiameterApprox. HeightShipping Method
#1 Container  10 8" 10" FedEx
#3 Container/Grow Bag 25 10" 15" FedEx
2' - 5' Bare Root 5 - 35 5 - 15" 2 - 5' FedEx
Containers/Grow Bags
ItemApprox. Weight (lbs.)Approx. Base DiameterApprox. HeightShipping Method
#1 Container  10 8" 10" FedEx
#2 Container 15 12" 12" FedEx
#3 Container/Grow Bag 25 10" 15" FedEx
#5 Container/Grow Bag 40 14" 10" McKay Delivery*
#7 Container/Grow Bag 35 - 50 14 - 16" 1 - 2' McKay Delivery*
#10 Container/Grow Bag 55 - 70 18" 1 - 3' McKay Delivery*
#15 Container/Grow Bag 65 - 80 22" 2 - 3' McKay Delivery*
#20 Container/Grow Bag 100 - 160 24" 7 McKay Delivery*
#25 Container/Grow Bag 130 - 200 24 - 30" 8' McKay Delivery*
Bare Root
ItemApprox. Weight (lbs.)Approx. Base DiameterApprox. HeightShipping Method
#1 Bare Root 5 5 - 8" (no soil on roots) 5 - 10" FedEx
12" Bare Root 5 - 10 5" (no soil on roots) 10 - 12" FedEx
15" Bare Root 8 - 10 10 - 12" (no soil on roots) 12 - 15" FedEx
18" Bare Root 10 - 15 10 - 15" (no soil on roots) 15 - 18" FedEx
2' Bare Root 15 12" (no soil on roots) 2' FedEx
3' Bare Root 20 15" (no soil on roots) 3' FedEx
4' Bare Root 25 18" (no soil on roots) 4' FedEx
5' Bare Root 30 20" (no soil on roots) 5' FedEx
6' Bare Root 35 22" (no soil on roots) 6' McKay Delivery*
8' Bare Root 40 22 - 24" (no soil on roots) 8' McKay Delivery*
9' Bare Root 45 24 - 30" (no soil on roots) 9' McKay Delivery*
1 3/4" caliper Bare Root 50 30" (no soil on roots) 5 - 6' McKay Delivery*
1 1/4" caliper Bare Root 55 32" (no soil on roots) 8 - 11' McKay Delivery*
1 1/2" caliper Bare Root 60 32" (no soil on roots) 10 - 12' McKay Delivery*
2 1/2" caliper Bare Root 65 32 - 35" (no soil on roots) 10 - 16' McKay Delivery*
Balled & Burlap (B&B)
ItemApprox. Weight (lbs.)Approx. Base DiameterApprox. HeightShipping Method
2' tall B&B 50 12 - 16" 2'  McKay Delivery*
3' tall B&B 60 - 250 22 - 24" 4' McKay Delivery*
4' tall B&B 250 22 - 24"  5' McKay Delivery*
5' tall B&B 325 16 - 24" 5' McKay Delivery*
6' tall B&B 150 - 325 24 - 30"  6' McKay Delivery*
7' tall B&B 500 - 700 30"  7' McKay Delivery*
8' tall B&B 600 - 700 30 - 32" 8' McKay Delivery*
9' tall B&B 700 30 - 35" 9' McKay Delivery*
1 1/4" caliper B&B 250 - 700 22" - 28" 8 - 11' McKay Delivery*
1 1/2" caliper B&B 350 - 600 24" - 30"  10 - 12' McKay Delivery*
2" caliper B&B 600 - 700 28" - 32"  10 - 14' McKay Delivery*
2 1/2" caliper B&B 700 - 1,000 30" - 36" 10 - 16' McKay Delivery*
3" caliper B&B 850 - 1,200 34" - 38" 12 - 18' McKay Delivery*
3 1/2" caliper B&B 1,000 - 1,200 36"  3' McKay Delivery*

*McKay Delivery - This shipping method can only be used when your delivery address is within 60 miles of Waterloo, Wisconsin. McKay will hand delivery your nursery stock. We can delivey any size, but typically this shipping method is used for oversize items that FedEx cannot ship.

Growing Zones: 4-7

Color: Purple, Red
Plant Size: 30-40' tall x 35' wide
Fall Color: Purple
Sunlight: Full Sun
Soil Conditions: Normal, Sandy, Clay, Acidic, Dry
Low Maintenance: Yes
Deer Resistant: No
Attracts Butterflies: No
Attracts Bees: Yes
Attracts Birds: No
Edible: No
Native: No

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