Twombly's Red Sentinel Japanese Maple Tree
Acer palmatum 'Twombly's Red Sentinel'
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Twombly's Red Sentinel Japanese Maple Tree - #3 Container is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Delivery and Shipping
Fast, Safe Plant Delivery
Ships in 3-4 business days • Tracking provided • Weather protected
Under $50 | $9.99 |
$50 - $99.99 | $14.99 |
$100 - $149.99 | $16.99 |
$150+ | $24.99 |
✓ Zone-specific timing • ✓ Professional packaging • ✓ Health guarantee
Understanding Plant Options
Nature Hills offers plants in two main formats:
- Container Plants: Grown in pots with soil, sized by container volume and plant age
- Bare Root Plants: Dormant plants without soil, sized by height measurements
Container Plant Sizes
Container sizes indicate plant age and growing capacity rather than liquid volume equivalents. Our containers follow industry-standard nursery "trade gallon" specifications, which differ from standard liquid gallon measurements.
Young Plants (6 months to 18 months old)
Container Size | Actual Volume | Metric Equivalent |
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2" x 2" x 3" | 0.18 - 0.21 dry quarts | 0.20 - 0.23 dry liters |
4" Container | 0.31 - 0.87 dry quarts | 0.35 - 0.96 dry liters |
4.5" Container | 0.65 dry quarts | 0.72 dry liters |
6" Container | 1.4 dry quarts | 1.59 dry liters |
1 Quart | 1 dry quart | 1.1 dry liters |
5.5" Container | 1.89 dry quarts | 2.08 dry liters |
Established Plants (18 months to 2.5 years old)
Container Size | Actual Volume | Metric Equivalent |
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2 Quart | 2 dry quarts | 2.2 dry liters |
#1 Container | 2.26 - 3.73 dry quarts | 2.49 - 4.11 dry liters |
5" x 5" x 12" | 3.5 - 4.3 dry quarts | 3.85 - 4.74 dry liters |
Mature Plants (2-4 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#2 Container | 1.19 - 1.76 dry gallons | 5.24 - 7.75 dry liters |
#3 Container | 2.15 - 2.76 dry gallons | 8.14 - 12.16 dry liters |
Large Plants (3-5 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#5 Container | 2.92 - 4.62 dry gallons | 12.86 - 20.35 dry liters |
#6 Container | 5.25 - 6.01 dry gallons | 23.12 - 26.42 dry liters |
#7 Container | 5.98 - 6.53 dry gallons | 26.34 - 28.76 dry liters |
Bare Root Plants
Bare root plants are sold by height from the root system to the top of the plant. Plants may exceed minimum height requirements.
Common Sizes:
- Trees: 1 foot, 2 feet, 3 feet, 4 feet, 5 feet, 6 feet
- Shrubs & Perennials: 1 foot, 18 inches, 2 feet
Important Notes
Container Volume Specifications
- Trade Gallon Standard: Our containers follow industry-standard "trade gallon" specifications established by the American National Standards Institute (ANSI Z60.1) for nursery stock
- Volume Variations: Actual soil volume may vary due to plant root systems and growing medium settlement
- Age Indicators: Container size primarily indicates plant age and maturity rather than liquid volume equivalents
Growing Conditions
- Plant size can vary based on variety and growing conditions
- Container size helps indicate plant maturity and establishment level
- Larger containers generally mean more established root systems and faster landscape establishment
Seasonal Availability
- Bare root plants are available seasonally when dormant
- Container plants are available throughout the growing season
- Specific varieties may have limited availability in certain sizes
Questions?
For questions about specific plant sizes or availability, please contact our plant experts who can help you choose the right size for your landscape needs.
Plant Highlights
Twombly's Red Sentinel Japanese Maple Tree highlights at a glance!
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Brand
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Plant Class
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Botanical Name
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Suitable Space
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Growing Zones5, 6, 7, 8
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Mature Height
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Mature Spread
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Sun ExposureFull Sun, Partial Shade
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Moisture
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Soil
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Growth RateMedium
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Fall Color
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Pruning Time

Growing Zones
Columnar Beauty - Twombly's Red Sentinel Japanese Maple Tree
A compact, upright and narrow-growing sport of the Bloodgood Japanese Maple with stunning color, the Twombly's Red Sentinel Japanese Maple Tree (Acer palmatum 'Twombly's Red Sentinel') is a rare and highly sought-after new variety! Known for its unique columnar growth and rich, deep red foliage that lasts throughout the growing seasons!
Unlike most Japanese Maples, which have a spreading habit, this variety grows in a narrow, vertical form, making it an excellent choice for small gardens, tight spaces, or as a striking accent tree!
With its vibrant red leaves that transition to fiery crimson in fall, this tree adds elegance and drama to any landscape!
Key Features
- Columnar Growth Habit – Narrow, upright form ideal for small spaces, patios, or urban landscapes.
- Vibrant Red Foliage – Deep burgundy leaves in spring and summer, transitioning to a brilliant red in fall.
- Compact Yet Striking – Grows 10-15 feet tall and 4-6 feet wide, making it perfect for narrow planting areas.
- Year-Round Interest – Bold foliage in growing seasons, striking bare branches in winter.
- Low Maintenance – Requires minimal care once established, with excellent disease resistance.
- Cold Hardy & Heat Tolerant – A unique Japanese Maple that thrives in USDA Zones 5-8, performing well in a variety of climates.
Landscaping With Twombly's Red Sentinel Japanese Maple
Growing just 10-15 feet tall, the Twombly's Red Columnar Japanese Maple is a versatile columnar tree that enhances any outdoor space with its vertical elegance and rich color.
- Perfect for Small Gardens – The columnar form allows it to fit in narrow garden beds, courtyards, or patios. That empty side yard will now have a vertical red living wall to block the nosy neighbors or a busy street!
- Focal Point in Modern Landscapes – Adds structure and visual interest, especially when paired with contemporary hardscaping. Think of Twombly's as a living exclamation point for your yard!
- Beautiful in Containers – Ideal for large decorative pots, bringing height and drama to patios or balconies!
- Japanese and Zen Gardens – Complements stone pathways, water features, and minimalist garden designs. A perfect ornamental for Meditation gardens!
- Great for Privacy Screening – When planted in rows, it creates a natural, colorful privacy barrier.
- Living Fences – Separate your front yard from a busy street, create a stunning red backdrop to your garden beds, or simply create a vibrant living wall as property division or privacy throughout your yard with multiples planted in a row or curve.
How to Care for Your Twombly's Red Sentinel Japanese Maple
This deciduous easy-to-grow Japanese Maple tree is low-maintenance and adaptable, thriving with basic care and the right growing conditions.
- Sunlight: Prefers full sun to partial shade; afternoon shade is beneficial in hotter climates.
- Soil: Plant Maple trees in very well-draining, slightly acidic to neutral soil for best results. Avoid heavy clay or waterlogged areas.
- Watering: Water deeply and regularly, especially in the first few years. Once established, it is somewhat drought-tolerant.
- Mulching: Apply a 3-4 inch layer of arborist mulch around the base to retain moisture and regulate temperature.
- Pruning: Minimal pruning is needed; shape lightly in late winter or early spring before new growth emerges.
- Fertilizing: Use a balanced, slow-release fertilizer in early spring for optimal growth and foliage color.
Read more care and tips for Japanese Maples in our Garden Blog!
Order The Twombly's Red Sentinel Japanese Maple Today!
The Twombly's Red Sentinel Japanese Maple is a truly unique addition to any garden, offering compact, vertical growth, stunning red foliage, and year-round beauty. A gorgeous focal point, privacy screen, or container specimen, this Japanese Maple brings elegance, structure, and rich color to any setting!
Order yours today at NatureHills.com and elevate your landscape with this exceptional ornamental tree!
Frequently Asked Questions (FAQ)
Do Japanese Maple Trees require a lot of maintenance?
No. It is a low-maintenance tree that thrives with proper watering, occasional pruning, and annual fertilization.
Can I grow Twombly's Red Sentinel in a container?
Yes, its upright form makes it an excellent choice for large decorative pots or planters.
Will Twombly's Red Sentinel Japanese Maple tolerate full sun?
Yes, but in hotter zones (7-8), some afternoon shade is recommended to prevent leaf scorch.
Does Twombly's Red Sentinel Japanese Maple have a good fall color?
The foliage remains deep red from spring through summer, then turns a brilliant crimson in fall!
Are Japanese Maples deer-resistant?
While not completely deer-proof, Japanese Maples are less appealing to deer than many other ornamental trees. In areas with high deer pressure, apply repellant from day one and continue according to package directions to protect your investment.