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Rock 'n Roll™ Hydrangea

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  • Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight)
  • Mature Height 4 - 5 Feet
  • Mature Spread 4 - 5 Feet
  • Growing Zones 5 - 8

Hydrangea macrophylla ‘COF-HM3’, commonly called Rock 'n Roll Hydrangea, has large mophead blooms. The large flower clusters come in bright pink, purple and dreamy blue, and stand out against a backdrop of luscious green foliage. This hydrangea reblooms in late summer, and its sturdy stems ensure that the blooms will never flop or droop. These low maintenance beauties are worth the space in your garden!

Rock 'n Roll has a mounding, upright, bushy shape. It reaches 4 - 5 high and as wide at maturity. This rock star is extremely cold-hardy down to -30° F. It prefers morning sun and afternoon shade and grows best in moist soil. Use these star performers in a privacy screen, pollinator garden, or cut-flower bed. Rock 'n Roll attracts butterflies and other pollinators, while deer don’t usually bother with it.

Rock 'n Roll™ Hydrangea Care

Rock 'n Roll Hydrangea prefers part-sun exposure and moist soil conditions. It can burn in the hot afternoon sun and will need regular water during the summer. Like most hydrangeas, Rock 'n Roll grows best in rich soil with plenty of organic matter. The pH of your soil will determine flower color: acidic soil brings out blue hues, alkaline soil leads to pink, and neutral soil promotes purple tones. Cover the root zone with a heap of mulch to reduce water evaporation and nurture the soil.

This mophead hydrangea blooms on old and new wood. Prune in early spring before the first flush of blooms. Cut back dead and damaged branches, and shape to control size.

Rock 'n Roll™ Hydrangea Spacing

Space these hydrangeas 4 feet apart, center on center, if growing as a tight hedge. For foundation planting, site shrubs at least 6 feet from your home with plenty of clearance from overhead eaves to ensure plantings will not get too dry. Hydrangeas will develop a deep root system and should only be grown in containers temporarily. 

Rock 'n Roll™ Hydrangea Information

USDA Hardiness Zones: 5 - 8
Plant Type: Bushes
Light Exposure: Partial Sun to Full Sun
Mature Height: 4 - 5 Feet
Mature Spread: 4 - 5 Feet
Spacing: 4 - 5 Feet
Habit: Upright
Flower Color(s): Blue, Pink, Purple
Flower Description: Multi-Color
Bloom Period: Summer
Foliage Type: Deciduous
Foliage Color(s): Green
Foliage Description:
Seasonal Interest: Summer Flowering
Watering: Average
Resists: Disease, Pests & Insects
Tolerates: Drought
Attracts: N/A
Container Role:
Uses: Borders, Wildlife Gardens
Features: Cut Flowers, Low Maintenance, Continuous Blooming or Rebloomer
Common Name: Rock 'n Roll™ Hydrangea
Other Name(s):
Scientific Name: HYDRANGEA M `ROCK-N-ROLL`

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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.