Azure Skies™ Bigleaf Hydrangea

As low as $99.59 was $119.99
Availability: In stock

Introducing to you the one and only Azure Skies™ Bigleaf Hydrangea bush (Hydrangea macrophylla 'COF HM1'). If you haven't guessed, it has big leaves and even bigger blooms! These flowers are known for making excellent cut flowers that are long-lasting! Who doesn't love a big blue Hydrangea?

These bloom in the early summer and again in late summer. You can expect these rounded mophead flowers all season long. Hydrangea bushes are extremely popular, maybe even the most popular bush! Their striking good looks and heavy blooms are the reason for this! Sturdy stems resist flopping and handsome foliage is quilted and toothy. Overall, these are highly ornamental flowering bushes for almost any landscaping project!

Like we said before, these strong and large flowers create a gorgeous cut flower. People love decorating their homes or desks with this pretty flower. An interesting aspect of this Bigleaf Hydrangea is the flower color. You can basically decide what you want! If you want a blue flower, plant them in acidic soils. If you want a fun pink flower, plant in a higher pH! Isn't that fun! Which will you choose? Pink or Blue Hydrangea?

Planting and Application:

This Bigleaf Hydrangea is most commonly used for hedges, mixed borders, cutting gardens, and as a backdrop to your perennial border. The size of this Hydrangea bush varies depending on your climate. Usually, this plant is around 5-6 feet tall but can be maintained smaller. There are endless possibilities!

Hedges, privacy and screening, rows along your property edges or along your home's foundation! Plant staggered rows as backdrops along garden beds and borders, or just have fun and plant clusters for bird-friendly mass plantings! The color is enough to be a fantastic focal point and they are tidy sentries for placing on either side of a set of stairs or astride your driveway!

  • Blue or Pink Depending on pH
  • Big Mophead Flower Clusters
  • Dark Green Foliage & Yellow Fall Color
  • Mid-Sized Compact Shrub
  • Hedge, Cut Flower, Specimen & Large Planter

#ProPlantTips for Care

Hydrangea care is simple and easy. You'll look like a gardening pro! The Azure Skies™ Bigleaf Hydrangea thrives in zones 5-8. Need to find your hardiness zone? Use our map to locate yours! Have a shady corner in your yard that only gets light a few hours a day? Perfect! This Hydrangea will love this spot. They thrive in partly shaded locations! Plant your new bush in well-drained soil. This is preferred among most plants as it will hold enough moisture, but not keep too much to where your roots will drown.

  • Part Shade/Partial Sun
  • Consistently Moist Well-Drained Soil
  • Prune Bigleaf Hydrangea After Flowering
  • Blooms on New Wood
  • Highly Adaptable Hardy & Carefree Once Established

Azure Skies™ Bigleaf Hydrangea is not going to remain in stock for long! Hurry and order this unique blue flowering ornamental from the Hydrangea experts at!

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
6 Now
7 Now
8 Now
9 Now
10 Now
11 Now

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


Azure Skies™ Bigleaf Hydrangea Is Suited to Grow in Zones 5-8
Growing Zones 5-8
More Information
Brand Nature Hills' Choice
Botanical Name Hydrangea macrophylla 'COF HM1
Type Deciduous
Mature Height 3 - 5 feet
Mature Spread 3 - 5 feet
Soil Well Drained Soil
Moisture Moderate
Growth Rate Medium
Foliage Color Green
Fall Color Yellow
Pollinator Friendly Yes
Pruning Time After Flowering