Black Truffle Cardinal Flower

$35.99
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SKU:
1231008194-pc
Availability : In Stock
Spring 2023 Pre-Order - Learn More
$35.99
  • Full Sun (At Least 6 Hours Of Direct Sunlight)
  • Mature Height 3 - 4 Feet
  • Mature Spread 2 - 3 Feet
  • Growing Zones 5 - 9
  • Use As A Thriller In Containers

With its dark foliage and contrasting red blooms, the Black Truffle Cardinal Flower really stands out in a bed or a border. Producing deep chocolate-purple leaves with tall flower spikes adorned with red blooms, this perennial is great for adding impact and height to any garden. Botanically named the Lobelia cardinalis 'Black Truffle', it is commonly known as the Black Truffle Cardinal Flower and is adored by pollinators and hummingbirds.

Native to North America, the Black Truffle Cardinal Flower is happiest when grown on moist or wet soils. Forming an erect and clumping mound, this Lobelia can grow to a height of 4 feet and provide great structure to the garden. Thankfully deer-resistant, the ornamental foliage will last from early summer until the first frost. It can either be grown as a specimen plant or for more impact, as a group.

Black Truffle Cardinal Flower Care

The Black Truffle Cardinal Flower needs to be grown in moisture-retentive fertile soil and does well when planted in a bog or rain garden. To get the best flowers and foliage color, it is best to plant this Black Truffle Cardinal Flower in full sun or partial shade. With its tall stems, it is advisable to grow this plant in a sheltered location out of the prevailing winds. If grown in a soil of medium to high fertility, no supplemental fertilizer is generally necessary.

Once the flowering stems have finished, they can be cut back to promote a neat appearance, although this will mean any self-seeding will not occur. Sadly, the Black Truffle Cardinal Flower is often short-lived. However, it can easily be divided every few years in spring to produce replacement plants. If growth becomes leggy during the growing season, stems can be reduced to encourage new growth.

Black Truffle Cardinal Flower Spacing

If given the correct conditions, the Black Truffle Cardinal Flower can reach an eventual 4 feet tall by three feet wide. A plant spacing of approximately 24 inches is advisable if planted in groups.

Black Truffle Cardinal Flower Information

USDA Hardiness Zones: 5 - 9
Plant Type: Perennial
Light Exposure: Full Sun (At Least 6 Hours Of Direct Sunlight)
Mature Height: 3 - 4 Feet
Mature Spread: 2 - 3 Feet
Spacing: 2 - 3 Feet
Habit: Upright
Flower Color(s): Red
Flower Description:
Bloom Period: Long Blooming Throughout The Summer
Foliage Type: Herbaceous
Foliage Color(s): Purple
Foliage Description: Deep Chocolate Purple
Seasonal Interest: Summer Flowering
Watering: Average
Resists: Deer
Tolerates: N/A
Attracts: Butterflies, Hummingbirds
Container Role: Thriller
Uses: Borders, Containers, Mass Planting, Specimen or Focal Point
Features: Attracts Pollinators, Native to North America
Brand: American Beauties Native Plants
Common Name: Black Truffle Cardinal Flower
Other Name(s): Cardinal Flower
Scientific Name: Lobelia c. 'Black Truffle'

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.

4.5 Pot

4.5" Pot
 Also Know As:
   4.5" Container

 Plant Age:
   ~ 6 months
 Plant Size:
   ~ 3"-6"
 Pot Size:
   ~ 4.5"H x 3.75"W
 Volume:
   1.42 quarts

Quart Pot

Quart Pot
 Also Know As:
   Quart

 Plant Age:
   ~ 1 year old
 Plant Size:
   ~ 4"-8"
 Pot Size:
   ~ 4.75"H x 4.5"W
 Volume:
   1.50 quarts

2.5 Quart

2.5 Quart
 Also Know As:
   2.5 Quart Pot

 Plant Age:
   ~ 1.5 year old
 Plant Size:
   ~ 8"-12"
 Pot Size:
   ~ 6.5"H x 6.5"W
 Volume:
   2.20-2.30 quarts

#1 Pot

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

#2 Pot

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

#3 Pot

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


For more detailed information, please click here.

Plant Addict Guarantee (Included On All Plant Orders)

Plant Addicts guarantees your plant(s) will arrive happy and healthy, but the plant(s) are being shipped through the mail and accidents happen. If the plant is dead, has dried out roots or the incorrect item was shipped just notify Plant Addicts within 3 days upon delivery. We may ask for pictures but will try to make it as easy as possible for you. Please note plant(s) with damaged branches or wilted leaves will not qualify for this guarantee. Plants are very resilient and will rebound quickly when cared for correctly.

For information on how to care for you new plant please check out our guide. Guide: How to Care for Your New Plant(s)

Plant Addicts Warranty - 1 Year (Extra Purchase Required)

We encourage all plant lovers to purchase the Plant Addicts Warranty whether you’re new or an expert. There are many variables outside our control and yours that can cause the demise of your plant(s). Examples would be hungry animals, drought, poor soil conditions, over watering, disease, insects & many other factors. The Plant Addicts Warranty is a 1 year warranty protecting you from all the unknowns and will replace your plant if it moves on to the plant afterlife.

The warranty is purchased on a per plant basis and must be purchased at the same time as the plant purchase. We will cover 100% of the price of the plant but the warranty does not cover shipping cost. Simply let us know if your plant has died within one year of receiving it and we’ll get you a new one shipped out. We may ask for photos for documentation purposes but again we’ll try to make it as easy as possible.

For more information, please go to our Shipping & Returns page at the bottom of the website.

Guide: How to Care for Your New Plant(s)

Planter Shipping

Standard Colors: 2-3 business days

Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice

Please Note: On special orders there can not be any cancellations

Plant Shipping

Time of Order:

Summer Shipping

  • If there is extreme heat we’ll delay shipping.  
    • We’ll have to review what areas the plants are traveling through along with your location


Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.

It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.