- Full Shade to Full Sun (0 - 6+ Hours Direct Sunlight)
- Height 12-16 Inches Tall
- Mature Width 22-28 Inches
- USDA Hardiness Zones 4-9
The foliage is impressive! The leaves are huge and mahogany red and paired with cream blooms. The Primo Mahogany Monster Coral Bells is salt tolerant and attracts all kinds of pollinators. This plant is resistant to deer and provides interest for seasons!
Its foliage is impressive. The leaves are a deep mahogany red and they are massive, and they form in large clumps. The blooms appear in summer and start as pink buds and open up to cream flowers. The Primo Mahogany Monster Coral Bells is native to North America. It reaches a garden height of twelve to sixteen inches and a scape height of thirty-two to thirty-eight inches. The spread reaches up to twenty-eight inches. There are many uses for this heuchera. Plant as a border plant, edging plant, in mass planting, or in containers. The Primo Mahogany Monster Coral Bells blooms make great cut flowers and will stand out in any landscape as a focal point.
Primo Mahogany Monster Coral Bells Care
Your Primo Mahogany Monster Coral Bells can grow in sun or shade. However, they thrive in part shade. Soil should be rich and must be well drained. It can tolerate soils with varying Ph. The water needed for the Primo Mahogany Monster Coral Bells is average. Fertilizer should be applied in the spring. Pruning and trimming should take place in early spring.
Primo Mahogany Monster Coral Bells Spacing
The Primo Mahogany Monster Coral Bells have large leaves and they need room to thrive. Space your plant twenty to twenty-eight inches center on center.
Primo Mahogany Monster Coral Bells Plant Facts
USDA Hardiness Zones: 4-9 |
Plant Type: Perennial |
Flower Color(s): Pink Shades |
Bloom Period: Mid Summer |
Foliage Color(s): Red |
Light Exposure: Full Shade to Full Sun |
Height Class: Short |
Height: 12-16 Inches |
Spread: 22-28 Inches |
Spacing: 22-28 Inches |
Habit: Mounded |
Watering: Average |
Drought Tolerant: No |
Resists: Deer |
Attracts: Bees, Hummingbirds & Butterflies |
Features: Winter Interest; Foliage Interest; Salt Tolerant |
Scientific Name: Primo® Mahogany Monster Heuchera hybrid USPPAF |
Common Name: Primo® Mahogany Monster Coral Bells |
Other Name(s): Alumroot |
Brand: Proven Winners |
- SKU:
- HEUMS
Container Sizes
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Quart Pot
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts

2.5 Quart
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts

#1 Pot
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts

#2 Pot
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons

#3 Pot
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons

#5 Pot
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons

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Arrival Guarantee
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Free 1-Year Plant Warranty
All bushes, perennials & trees come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.

Pre-Ordered Plants
Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated Spring Shipping Schedule
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 24th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants Shipping Now
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.