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Blackberry Merlot Hibiscus

Plants That Work

$59.99
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SKU:
1231013692-pc
Availability : Out of Stock
Spring 2023 Pre-Order - Learn More
$59.99
This product does not ship to:
AZ, CA, ID, MT, NV, OR, UT, WA
  • Partial Shade to Full Sun (At Least 3 Hours Of Direct Sunlight)
  • Mature Height 4 - 5 Feet
  • Mature Spread 4 - 5 Feet
  • Growing Zones 4 - 9

Hibiscus ‘Blackberry Merlot’, commonly known as Rose Mallow, has spectacular, velvety-red, tropical-looking, 8” flowers on a backdrop of contrasting, glossy green foliage loaded on this upright perennial from summer through early fall for a long season of continual bloom.

This sun-loving, deer-resistant perennial is grown in Hardiness Zones 4-9 and reaches heights and widths of 4-5 ft. Blackberry Merlot Hibiscus has pollinator-attracting showy flowers that are standouts in many garden styles; use this shrub as a single specimen or plant it in groups for a magnificent display.  

Blackberry Merlot Hibiscus

Plant Blackberry Merlot Hibiscus where it will receive 6 hours or more of direct sun–the more sun the better. They thrive in slightly acidic soil, with consistent watering, which will result in larger flowers and healthy foliage. Check soil moisture levels often during the hottest days of summer. The soil should be well draining and not compacted. Perennial Blackberry Merlot Hibiscus has a vigorous growth rate when planted in preferred conditions. Plant the crown just above the soil level, and it's best to plant in early spring while the temperatures are still cool, well before the heat of summer. 

Keep Blackberry Hibiscus well watered and well fed to accommodate its vigorous growth and hearty appetite. Apply a slow-release fertilizer in early spring, after the first round of blooming, and again in mid-summer. You can also use a diluted liquid fertilizer specifically formulated for hibiscus, which contains higher nitrogen (N), and is lower in phosphorus (P) such as a 10-4-8 formula, a couple of times each month from late spring to fall. 

Pinch the shoots early in the season when they are 6-8 inches long to encourage branching. The branches of established Hibiscus can become thick, so you will need a pair of sharp garden loppers to cut the branches back in early winter. Afterward, apply a few inches of organic mulch such as shredded leaves to protect the root system during the coldest winter months.

Blackberry Merlot Hibiscus

Blackberry Merlot Hibiscus requires plenty of sun, moisture, and space in the garden to reach its mature width of 4-5 ft. Whether you are planting it as a single specimen or in groups, space each plant 4 feet apart on center. They are lovely used as a garden centerpiece with lower growing annuals and perennials surrounding this tropical-looking beauty. 

Blackberry Merlot Hibiscus Information

USDA Hardiness Zones: 4 - 9
Plant Type: Perennials
Light Exposure: Partial Shade to Full Sun (At Least 3 Hours Of Direct Sunlight)
Mature Height: 4 - 5 Feet
Mature Spread: 4 - 5 Feet
Spacing: 4 - 5 Feet
Habit: Upright
Flower Color(s): Red
Flower Description: Deep Red
Bloom Period: Summer
Foliage Type: Herbaceous
Foliage Color(s): Green
Foliage Description: Dark Green
Seasonal Interest: Summer Flowering, Fall Flowering
Watering: Average
Resists: Deer
Tolerates: Drought
Attracts: Bees, Butterflies
Container Role:
Uses: Borders, Containers, Specimen or Focal Point
Features: Attracts Pollinators, Cut Flowers, Fragrant, Low Maintenance, Continuous Blooming or Rebloomer
Brand:
Common Name: Blackberry Merlot Hibiscus
Other Name(s): Rose Mallow
Scientific Name: Hibiscus 'Blackberry Merlot'

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.

1 Review - Blackberry Merlot Hibiscus Show Reviews

  • 4
    no flowers yet.

    Posted by Victoria Miller on Jan 10, 2023

    The plants arrived in perfect condition, were easy to plant and have been growing excellently. I can't wait until they bloom!