- USDA Hardiness Zones 4-9
- Height 4-4.5 Feet Tall
- Spread 4.5-5 Feet Wide
Summerific Holy Grail Hibiscus is a hardy version and will look great in your yard! It has almost black foliage that is paired with large deep red blooms. This one brings hummingbirds to your yard while looking amazing. This award winner is native to North America and resistant to deer.
The foliage is as interesting as the blooms. It is deep near-black in color and provides fall interest. The blooms are a large eight to nine inches and deep red. This upright perennial falls into the tall category reaching a height of forty-eight to fifty-four inches tall and fifty-four to sixty inches wide. The Summerific Holy Grail Hibiscus has a long bloom season that lasts from summer to fall. This hibiscus makes an unforgettable focal point. It is a great border plant, and does well in mass planting. Plant in containers as a thriller or spiller.
Summerific Holy Grail Hibiscus Care
Plant in full sun to part sun, ensuring it receives four to six hours of sun per day. Water needs are average. Soil should be well-drained and moist. Plant your Summerific Holy Grail Hibiscus in acidic soil. It is tolerant to all types of soil. Trim down in the spring prior to new growth. Apply slow release fertilizer in the spring. Mulching in the winter can be beneficial.
Summerific Holy Grail Hibiscus Spacing
The Summerific Holy Grail Hibiscus grows to be 48”-54” inches tall, spacing is important when used for border or mass planting. Spacing for this plant should be 54”- 60” inches, center on center.
Summerific Holy Grail Hibiscus Plant Facts
|USDA Hardiness Zones: 4-9|
|Flower Color(s): Red|
|Bloom Period: Summer to Fall|
|Foliage Color(s): Black|
|Light Exposure: Partial Sun to Full Sun|
|Height Class: Tall|
|Height: 4-4.5 Feet|
|Spread: 4.5-5 Feet|
|Spacing: 4.5-5 Feet|
|Drought Tolerant: No|
|Features: Fall Interest; Long Blooming|
|Scientific Name: Summerific® Holy Grail Hibiscus hybrid USPPAF|
|Common Name: Summerific® Holy Grail Hibiscus|
|Other Name(s): Rose Mallow; Hardy Perennial Hibiscus; Swamp Mallow|
|Brand: Proven Winners|
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.
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.
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
Time of Order:
- 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.