Job's Nursery and Pumpkin Patch LLC

Helping Tri-City Gardeners Grow Since 1940!

Job's Nursery LLC is a family owned nursery and tree farm that offers a wide selection of outdoor plants that are hardy for our area. We are located just north of Pasco on Columbia River Road.  It's a short trip to a beautiful location to escape the hustle and bustle of your everyday life.

 

 

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Twombly's Red Sentinel Japanese Maple

Acer palmatum 'Twombly's Red Sentinel'

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Twombly's Red Sentinel Japanese Maple (Acer palmatum 'Twombly's Red Sentinel') at Job's Nursery

Twombly's Red Sentinel Japanese Maple foliage

Twombly's Red Sentinel Japanese Maple foliage

(Photo courtesy of NetPS Plant Finder)

Twombly's Red Sentinel Japanese Maple (Acer palmatum 'Twombly's Red Sentinel') at Job's Nursery

Twombly's Red Sentinel Japanese Maple in fall

Twombly's Red Sentinel Japanese Maple in fall

(Photo courtesy of NetPS Plant Finder)

Height:  8 feet

Spread:  3 feet

Sunlight:  partial shade 

Hardiness Zone:  5b

Description:

True to its name, this variety maintains a somewhat columnar form, with burgindy to red foliage all season long, ending in a fiery display in fall; dense and narrow upright form. Needs afternoon shade and wind protection.

Ornamental Features

Twombly's Red Sentinel Japanese Maple is primarily valued in the landscape or garden for its rigidly columnar form. It has attractive burgundy deciduous foliage which emerges red in spring. The small lobed palmate leaves are highly ornamental and turn an outstanding crimson in the fall.

Landscape Attributes

Twombly's Red Sentinel Japanese Maple is a dense deciduous tree with a strong central leader and a narrowly upright and columnar growth habit. Its relatively fine texture sets it apart from other landscape plants with less refined foliage.

This is a relatively low maintenance tree, and should only be pruned in summer after the leaves have fully developed, as it may 'bleed' sap if pruned in late winter or early spring. It has no significant negative characteristics.

Twombly's Red Sentinel Japanese Maple is recommended for the following landscape applications;

  • Accent
  • Vertical Accent
  • Mass Planting
  • Hedges/Screening
  • General Garden Use
  • Container Planting

Planting & Growing

Twombly's Red Sentinel Japanese Maple will grow to be about 8 feet tall at maturity, with a spread of 3 feet. It tends to be a little leggy, with a typical clearance of 2 feet from the ground, and is suitable for planting under power lines. It grows at a slow rate, and under ideal conditions can be expected to live for 60 years or more.

This tree should be grown in a location with partial shade or which is shaded from the hot afternoon sun. It prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is not particular as to soil pH, but grows best in rich soils. It is somewhat tolerant of urban pollution, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder microclimates. This is a selected variety of a species not originally from North America.

Twombly's Red Sentinel Japanese Maple is a fine choice for the yard, but it is also a good selection for planting in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. It is even sizeable enough that it can be grown alone in a suitable container. Note that when grown in a container, it may not perform exactly as indicated on the tag - this is to be expected. Also note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Accent  Articulation  Massing  Screening  Garden  Container 
Applications
Foliage Color  Fall Color  Texture  Plant Form 
Ornamental Features