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Rock - N - Roll™ Hydrangea

Hydrangea macrophylla 'COF HM3'

  • Vigorous Rebloomer Produces Massive Mophead Blooms All Summer Long on New Wood
  • Thrives in Zones 5-8
  • Grows 4-5 ft Tall and Wide
  • Showy Blue, Purple, Pink Blooms From Early Summer to Early Fall
  • Ideal for Privacy Screen or Hedge
Regular price $8808
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Plant Size

Specifications

Plant specifications
Plant Characteristics Cold hardy, Flowering, Attracts pollinators, Container Friendly
Hardiness Zone 6a to 11b
Sunlight Full sun, Partial shade
Height 4-5 ft
Width 4-5 ft
Watering Needs Moderate
Preferred Soil Clay, Loamy, Peaty, Sandy
Growth Rate Moderate
Growth Habit Bushy, Upright
Blooms In Fall, Summer
Flower Color Blue, Purple, Pink
Foliage Color Green, Other, Variegated
Pet Safety Toxic to pets
Suitable Space Indoors, Outdoors
Plant Name Hydrangea
Botanical Name Hydrangea macrophylla 'COF HM3'
Species macrophylla
Cultivar COF HM3
Class Magnoliopsida, Cornales
Does Not Ship To AK, HI, ID, MT, PR

Frequently Asked Questions

What are the sunlight requirements for Rock - N - Roll™ Hydrangea?

  • Rock-N-Roll™ Hydrangea thrives in partial shade to partial sun conditions. This macrophylla variety performs best with morning sun and afternoon shade, especially in warmer climates. Plant in a location with 4-6 hours of sunlight for optimal blooming.

What type of soil does Rock - N - Roll™ Hydrangea need?

  • Rock-N-Roll™ Hydrangea adapts to most well-draining soils, with bloom color changing based on pH - acidic soil produces blue/purple flowers while alkaline soil creates deep pink blooms. Test your soil pH to predict flower color, available at naturehills.com.

How do I change the flower color of Rock - N - Roll™ Hydrangea (blue, pink, purple)?

  • Flower color on Rock-N-Roll™ Hydrangea depends entirely on your soil's pH level. Acidic soil (pH below 7) produces blue and purple blooms, while alkaline soil (pH above 7) creates deep pink flowers. Test your soil and amend with sulfur to lower pH for blues or lime to raise pH for pinks.

Is Rock - N - Roll™ Hydrangea cold hardy, and how low can temperatures go?

  • Rock-N-Roll™ Hydrangea is cold hardy and suitable for northern gardens. While the product description confirms its cold hardiness, specific temperature ranges aren't provided. Check your USDA hardiness zone compatibility before planting to ensure reliable winter survival.

How often should I water Rock - N - Roll™ Hydrangea, especially in summer?

  • Water Rock-N-Roll™ Hydrangea deeply 2-3 times per week during summer heat. These fast-growing shrubs need consistent moisture to support their all-season blooming on new wood. Check soil moisture regularly and increase frequency during hot spells to keep those vibrant mophead blooms thriving from your Nature Hills purchase.

Does Rock - N - Roll™ Hydrangea attract deer or is it deer resistant?

  • Rock-N-Roll™ Hydrangea is generally deer resistant, as most hydrangeas are not preferred browse for deer. The sturdy stems and thick foliage make it less appealing to wildlife. For best protection, plant near high-traffic areas or combine with other deer-resistant shrubs.

How is Rock - N - Roll™ Hydrangea shipped, and what size do plants arrive in?

  • Rock-N-Roll™ Hydrangea ships as a live plant in a container, typically arriving as a well-established young shrub ready for planting. The exact size varies by season and availability, but plants arrive with healthy root systems and sturdy stems. Plant immediately upon arrival or keep watered until you can transplant to your garden.

Is Rock - N - Roll™ Hydrangea suitable for containers or as a privacy screen?

  • Rock-N-Roll™ Hydrangea excels as a privacy screen with its dense branching and mid-sized bushy form. The fast-growing shrubs create effective hedges while providing vibrant blooms all summer. Plant in rows for screening or use smaller containers for patios.