- 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:
- 1231013692-pc
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 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
Also Know 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 Know As:
2.5 Quart Pot
Plant Age:
~ 1.5 - 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 Know As:
#1 Container
1 Gallon
Plant Age:
~ 1.5 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
#2 Pot
Also Know 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 Know 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 Addict Guarantee (Included On All Plant Orders)
Plant Addicts Warranty - 1 Year (Extra Purchase Required)
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.
