Sienna Glen Maple

Product Code: msien

Maple Sienna Glen® (Acer x freemanii 'Sienna') (pp11322)
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Details

The Sienna Glen Maple tree is a naturally occurring hybrid found on an abandoned farmstead in Lake Elmo, Minnesota. Its distinct, upright, pyramidal growth habit, which is readily apparent as a young tree, grows and becomes a broad pyramid when mature. The Sienna Glen exhibits vigorous growth, yet withstands strong winds. The branches are borne more closely together along the trunk (than those of Autumn Blaze) and are finer and more delicate, yet the wood is harder and shorter and exhibit less drooping. The smaller, fine textured green leaves are dark green with a silvery underside, and turn a variable mix of yellow and orange with a pinkish tinge at the highest part of the crown. As the fall color finishes, it turns a burnt orange. This beauty tolerates higher soil pH unlike Autumn Blaze, not exhibiting any chlorosis. Hardiness zone 4 (testing done in zone 3). A Dennis Heinz introduction. Mature growth is around 60' tall x 40' wide.

Planting & Care for Trees – Hybrid Maples

Preparation

  • Its distinct, upright, pyramidal growth habit, which is readily apparent as a young tree, grows and becomes a broad pyramid when mature.
  • The Sienna Glen exhibits vigorous growth, yet withstands strong winds.
  • The branches are borne more closely together along the trunk (than those of Autumn Blaze) and are finer and more delicate, yet the wood is harder and shorter and exhibit less drooping.
  • This beauty tolerates higher soil pH unlike Autumn Blaze, not exhibiting any chlorosis.
  • Hardiness zone 4 (testing done in zone 3).
  • Mature growth is around 60' tall x 40' wide.
  • The trees grow well in almost any type of soil as long as it is well-drained.
  • 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

  • Bare Root - Cut open the bundle (top and roots are tied) and separate all the plants. Soak roots in buckets of water until planted. Each plant type will be labeled separately for identification. Do not expose the roots to sun. They should never dry out. Keep roots covered. All bare-root plants must be trimmed when planted. 
  • Containers - Completely saturate all container plants by putting in a larger container of water until it stops bubbling, then remove. You’re now ready to plant.
  • B&B - Soak root ball very well.
  • Scroll down and click on the orange rectangular box "Handling & Planting Guidelines" to see illustrations on how to plant properly. 

Planting Bare Root

  • Plant Bare root in fall. A good indicator if you can still plant is if the ground is still workable you’re good to go. If a hard frost is expected be sure to hold off on planting.
  • Dig a hole at least 6" wider and the same depth as the root mass. The crown or graft of the plant should be slightly higher than ground level where it was grown at the nursery.
  • Trim off the broken roots and branches.
  • Place fertilizer packets in hole (if purchased). Do not place other fertilizers in the planting hole. *Use Our Recommended Fertilizer.
  • Spread the roots and fill halfway with soil, then water until soil settles completely saturating the soil and planting pit.
  • Re-adjust plant and fill the hole with the rest of the soil.
  • Back fill the balance of the soil and water well. 
  • See our link below “Handling & Planting Guidelines” for illustrations on planting.   

Planting containers

  • Plant in spring and fall
  • Slide plant from pot by tapping on the bottom of the pot.
  • With shovel or knife trim bottom 2" off of the root ball for plants in plastic containers.
  • Dig a hole no deeper than the depth of the container and 6" or more, making sure it’s wider on the sides.
  • Rotate the plant to the proper position. Never lift or move plants by the tops.
  • Place the root ball in the hole.
  • 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.

Planting B&B trees

  • Plant B&B trees in spring or fall. A good indicator if you can still plant is if the ground is still workable you’re good to go. If a hard frost is expected be sure to hold off on planting.
  • Dig a hole at least 6" wider and no deeper than the size of the ball on the plant. Rotate the plant to the proper position. Never lift or move trees by the tops.
  • 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 ½ of the hole with soil and completely saturate the soil with water.
  • Once the tree is straight and located as desired, cut and remove twine. Then, remove or bend back top ⅓ of metal basket. Lastly, remove exposed burlap from top of ball
  • Fill the hole to the top of the ball with soil, then soak well with water and let settle.
  • The top of the root ball should be visible and slightly higher than the soil around it.
  • Add mulch on top of soil making sure to not put mulch against the trunk or stems.
  • See our link below “Handling & Planting Guidelines” for illustrations on planting.

Pruning - After Planting

  • Bare Root - Prune ALL bare root plants to reduce transplant shock and ensure success. Pruning should occur either before or as soon after planting as possible. All pruning should be done with a sharp pruning shears.
  • B&B & containers - Although it is not essential for B&B or containers 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 on Trees – Hybrid Maples

Special Plant Features & Tips

  • The Sienna Glen Maple tree is a naturally occurring hybrid found on an abandoned farmstead in Lake Elmo, Minnesota.
  • Its distinct, upright, pyramidal growth habit, which is readily apparent as a young tree, grows and becomes a broad pyramid when mature.
  • The Sienna Glen exhibits vigorous growth, yet withstands strong winds.
  • The branches are borne more closely together along the trunk (than those of Autumn Blaze) and are finer and more delicate, yet the wood is harder and shorter and exhibit less drooping.
  • The smaller, fine textured green leaves are dark green with a silvery underside, and turn a variable mix of yellow and orange with a pinkish tinge at the highest part of the crown.
  • As the fall color finishes, it turns a burnt orange.
  • This beauty tolerates higher soil pH unlike Autumn Blaze, not exhibiting any chlorosis.
  • Hardiness zone 4 (testing done in zone 3).
  • A Dennis Heinz introduction.
  • Mature growth is around 60' tall x 40' wide.
  • The trees grow well in almost any type of soil as long as it is well-drained.
  • 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 to plant containers

 

How & When to Prune Trees

 

Watch our Video on how to plant & care for a bare root plant

 

How do we dig our bare root plants?

ItemApprox Weight (lbs.)Approx Base Dimensions (diameter)Approx Height
#7 Grow Bag** 35-50 14-16" 5-8'
#10 Grow Bag** 55-70 18" 6-8'
#15 Grow Bag** 65-80 22" 6-10'
#20 Grow Bag** 75-100 24" 8-12'
1 1/4" B&B** 250-500 22" for single stems, 28" for multiple stems  8-11'
1 1/2" B&B** 325-600 24" for single stems, 30" for multiple stems  10-12'
2" B&B** 500-700 28" for single stems, 32" for multiple stems 10-14'
2 1/2" B&B** 600-1000 30" for single stems, 36" for multiple stems 10-15'
3" B&B** 850-1000 34"-36"  12-16'
3 1/2" B&B** 1000 36"  12-18'
10' B&B** 250 22"  10'
12' B&B** 325 24"  12'
14' B&B** 500 28" 14'
16' B&B** 600 30"  16'
2' B&B** 50 12-16"  2'
3' B&B** 60-250 16-22"  3'
4' B&B** 250 22-24" 4'
5' B&B** 325 22-24"  5'
6' B&B** 150-325 16-24" 6'
7' B&B** 500-700 28-32"  7'
8' B&B** 600-700 14-30"  8'
9' B&B** 700 32"  9'
#3 container* Less than 35  10" 10" 
#5 container** 40 11" 10.5" 
#7 container** 60 14" 12" 
#10 container** 80 14" 14 
#20 container** 160 19.5" 17" 
Bare Root* varies, but always lighter no soil on roots varies depending on item

*#1 - #3 containers and bare root are the only items that can be shipped FedEx and/or by our delivery trucks (see below for more information regarding pick-up and local delivery. 

**Any items over 100 Ibs., #5 - #20 containers or B&B can only be delivered by our trucks due to FedEx shipping weight and size restrictions. Our trusted trucks only deliver around a 100 miles radius from our corporate office in Waterloo, Wisconsin. Any item you order can be picked-up at our corporate office in Waterloo, Wisconsin or our new retail garden center Winterland Nursery for free (bare root orders cannot be picked up at Winterland due to lack of bare root coolers). See our estimated delivery schedule here

Growing Zones: 3-7

Color: Green, Orange, Pink, Yellow
Plant Size: 60' tall x 40' wide
Fall Color: Yellow-orange (pinkish tinge) finishing with burnt orange
Sunlight: Full Sun
Soil Conditions: Normal, Sandy, Clay, Acidic, Wet, Dry
Low Maintenance: Yes
Deer Resistant: No
Attracts Butterflies: No
Attracts Bees: Yes
Attracts Birds: No
Edible: No
Native: No

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