Rock-N-Roll™ Hydrangea

As low as $79.19 was $119.99
Availability: In stock

Rocking the Blooms all Summer iBloom® Rock-N-Roll™ Hydrangea!

  • Large Mophead Blooms
  • Vibrant Deep Pink or Blue and Purple
  • Flower Color Varies Depending on Soil pH
  • Vigorous Rebloomer on New Wood
  • Easy Care & Low Maintenance
  • Long-Lasting Flower Heads
  • Butterflies and Beneficial Pollinators
  • Wildlife Habitat & Shelterbelts
  • Cold Hardy
  • Lush Bushy Deep-Green Foliage
  • Fast-Growing Sturdy Stems
  • Dried and Fresh Floral Arrangements

Hydrangea conjure images of traditional plantings of stately shrubs, sedately lining quiet picket fences. Time to turn up the volume with the iBloom® Rock-N-Roll™ Hydrangea!

These are fast-growing shrubs and their long-bloom time makes Rock-N-Roll™ Hydrangea (Hydrangea macrophylla 'COF HM3') an amazing garden addition.

Concert-ready flower clusters in vibrant jewel tones are highlighted by equally saturated deep-green foliage. This gorgeous shrub grows in a bushy, upright form that is naturally rounded and mid-sized presence in the garden.

The clusters of blossoms are either deep pink, purple or vibrant blue, depending on your soil's pH. Pollinators adore this Mophead Hydrangea as much as you will!

The showy blooms last all summer and in autumn, and the blooms dry to tan on the shrub and create fantastic winter interest. The sturdy stems make excellent cut flowers for dried or fresh dcor!

How to Use Rock-N-Roll™ Hydrangea In The Landscape

Bigleaf Hydrangea are reliable flowering shrubs with bloom color boosted by an amp! The bright colors and sizable form create amazing hedges for privacy we're sure your neighbors won't mind blaring in your yard!

Boost curb appeal with a row of these rock stars screening your property from the street, or a row in front of your home as a foundation planting!

The branching is dense enough for Rock-N-Roll™ to be utilized for ornamental additions to shelterbelts and windbreaks while pulling double duty as a fantastic backdrop for your garden beds and borders!

An excellent specimen or accent plant, Rock-N-Roll™ is a rounded anchor plant and just the boost your garden needs to wake up your sleepy cottage border.

Cut flower beds and pollinator gardens benefit from vigorous, reblooming flower buds that keep pumping out enough blooms to keep your vases and pollinators full!

Low-maintenance, you'll have little work to keep these hardy shrubs looking amazing anywhere you plant one. So heavy in bloom that Rock-N-Roll™ Hydrangea needs every sturdy stem.

#ProPlantTips For Care

If you have acidic soil your iBloom® Rock-N-Roll™ will take on blue shades, and if you have alkaline soil, you'll get to see bright pink! Neutral soil and you'll see vibrant purples! Whatever color you choose, Rock-N-Roll™ will be vibrant and showy!

Tolerating near full sun only in the cooler zones, Hydrangea really does its best with morning sun and afternoon shade. Partial sun and dappled shade are favorite locations for these, but for the strongest stems, they do need at least 4 hours of sun.

Provide Rock-N-Roll™ Hydrangea with adequately moist soil, especially during the summer months for the best flower size and color! Hydrangea loves rich soil with ample organic matter. Consistent moisture is a must during the hot summer months.

Hardy growing zones 5 through 8, soil type for Hydrangea is any type, from clay to sand to loam, just as long it is well-drained. A generous layer of mulch helps retain soil moisture as well as insulate the root system from both heat and chill.

Prune in early spring before new growth appears, but only to remove any winter dieback, flowering on last year's wood. This keeps the shrub fresh and removes winter damage.

Change the ho-hum tune of your garden with iBloom® Rock-N-Roll™ Hydrangeas! Set the stage for amazing colors and entertaining tomorrow by ordering your landscaping from the plant disc jockeys at Nature Hills Nursery today!

Buying Options for Plants

Nature Hills sells a large variety of plants with several options available. Plants are offered in both potted containers and as dormant bare root without soil. Here is a helpful resource to understand your options as you create a beautiful landscape with help from Nature Hills.

Ever wonder what a larger plant will mean for your landscape? Container Sizes are really all about the age of the plant!

Seasonally, Nature Hills offers hand selected, high quality bare root trees, shrubs and perennials. Bare root plants are sold by height from the top of the root system to the top of the plant. Plants may be taller than the height minimums.

  • Popular sizes of select trees are 1 foot, 2 feet, 3 feet, etc.
  • Popular sizes of select bare root plants is 1 foot, 18 inches, etc.

Nature Hills Container Size by Volume

Keep in mind, specific varieties and different growing conditions can affect the rate at which plants grow. Variations in size may occur.

Young Plants to 18 Months
Size Volume
2"x2"x3" Ranges from .18 to .21 dry quarts / .198 to .23 dry liters in volume
4.5" Container Equal to .65 dry quart / .72 dry liter in volume
Sprinter Pot Equal to .63 dry quart / .69 dry liter in volume
4" Container Ranges from .31 to .87 / .35 to .96 dry liter in volume
6" Container Equal to 1.4 dry quarts / 1.59 dry liters in volume
1 Quart Equal to 1 dry quart / 1.1 dry liter in volume
5.5" Container Equal to 1.89 of a dry quart / 2.08 dry liters in volume
4"x4"x5" Ranges from .8 to 1.1 dry quarts / .88 to 1.2 dry liters in volume
4"x4"x6" Ranges from 1.0 to 1.3 dry quarts / 1.1 to 1.41 dry liters in volume
4"x4"x9" Ranges from 1.1 to 2.1 dry quarts / 1.2 to 2.3 dry liters in volume
4"x4"x10" Ranges from 1.7 to 2.3 dry quart / 1.87 to 2.53 dry liters in volume
Plants 18 Months - 2.5 Years Old
Size Volume
2 Quart Equal to 2 dry quarts / 2.2 dry liters in volume
#1 Container Ranges from 2.26 to 3.73 dry quarts / 2.49 to 4.11 dry liters in volume
5"x5"x12" Equal to 3.5 to 4.3 dry quarts / 3.85 to 4.74 dry liters in volume
Plants 2 - 4 Years Old
Size Volume
#2 Container Ranges from 1.19 to 1.76 dry gallons / 5.24 to 7.75 dry liters in volume
#3 Container Ranges from 2.32 to 2.76 dry gallons / 10.22 to 12.16 dry liters in volume
Plants 3 - 5 Years Old
Size Volume
#5 Container Ranges from 2.92 to 4.62 dry gallons / 12.86 to 20.35 dry liters in volume
#6 Container Ranges from 5.25 to 6.01 dry gallons / 23.12 to 26.42 dry liters in volume
#7 Container Ranges from 5.98 to 6.08 dry gallons / 26.34 to 26.78 dry liters in volume

About Plant Sentry™

Plant Sentry is designed to protect both consumers and the nursery trade from invasive plant pests and diseases. Sites that display the Plant Sentry protection badge are protected from consumers buying and nurseries shipping material carrying invasive pests and diseases.

This proprietary eCommerce software prevents the shipment of a restricted plant to each state. The Plant Sentry system includes a shipment certification program. The Plant Sentry Compliance Officer works closely with and each nursery or fulfillment center to ensure only compliant plants are sold to customers.

Click Here to learn more

Plant Sentry


To obtain a more accurate shipment time-frame, simply enter your zip code in the “Find Your Growing Zone” box to the right. Our plants are grown all over the country and lead time on items may be different because of this. Once your order is placed, you will also receive the specific shipment time-frame information as part of your order confirmation. Once an item ships, you will receive shipment notification and tracking numbers, so you can follow along while your plant travels to your doorstep. We use FedEx, UPS, or USPS at our discretion.

Due to winter weather we have put a hold on shipping to the areas shown below in grey. You can still order now and we will ship the plant to you during an appropriate time for your zone.

*If you have found your zone already, it will be highlighted in the table below.
Color Zone Times
3 Spring 2019
4 Now
5 Now
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Shipping Rates

At Nature Hills we handle, package and ship the products you order with the utmost care to ensure healthy delivery. Shipping and handling charges are calculated based on the tables below. Please note that some items include an additional handling surcharge, these will be noted on the item's product page.

From To S&H
0 - 19.99 24.99
20 - 49.99 29.99
50 - 69.99 34.99
70 - 99.99 39.99
100 - 129.99 44.99
130 - 149.99 48.99
150 - 150+ Approx 28%

Click here to see our full rates


Rock-N-Roll™ Hydrangea Is Suited to Grow in Zones 5-8
Growing Zones 5-8
More Information
Brand Nature Hills' Choice
Botanical Name Hydrangea macrophylla 'COF HM3'
Type Deciduous
Mature Height 4 - 5 feet
Mature Spread 4 - 5 feet
Sun Exposure Full Sun, Partial Shade
Soil Well Drained
Moisture Moderate
Growth Rate Medium
Flower Color Pink, Blue or Lavender
Foliage Color Green
Pollinator Friendly Yes
Pruning Time Early Spring