- 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' |
- SKU:
- HIBBM
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
Also Known 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
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
For more detailed information, please click here.
Plant Addicts Guarantee (Included On All Plant Orders)
Plant Addicts always guarantees your plant(s) will arrive happy & healthy. However, plant(s) are being shipped through the mail & sometimes 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 more information on how to care for your new plants, please click on our guide below.
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 a new gardener or an expert. There are many variables outside of anyone's control that can cause a plant to die. Hungry animals, drought, poor soil conditions, over watering, diseases & pests are all good examples of what can cause plants to die. The Plant Addicts Warranty is a 1 year warranty protecting you from all of the unknowns and will replace your plant if something were to happen to it.
The warranty is purchased on a per plant basis and must be purchased at the same time as the plant(s). We will cover 100% of the price of the plant, but the warranty does not cover shipping costs. SImply let us know if your plant has died within 1 year of receiving it and we will get you a new one shipped out as soon as possible (depending on the time of the year and availability). We may ask for photos for documentation purposes, but we try to make the process as easy as possible.
For more information, please click on our page below.
Plant Shipping
Below are some factors we consider when determining when to ship the plants depending on the timing of the order.
Winter to Early Spring
We ship only when it's warm enough to plant in your growing zone.
Sometimes plants aren't completely ready to sell and ship in early spring. We will wait until the plants are ready before shipping so you don't get a subpar product.
For Southern plants we will be able to ship much earlier than plants coming from our northern nursery.
Summer
If there is extreme heat we may delay shipping for a week or several weeks.
We review what areas the plants are traveling through as well as your location.
Fall into Winter
We’ll ship plants out all the way up to the end of the fall planting season!
Winter
Get your order in early to reserve your plants for Spring planting!
Once your plant is shipped you’ll receive an automated email with tracking information.
Click here for more detailed shipping information.
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