Endless Summer BloomStruck Bigleaf Hydrangea (Hydrangea macrophylla ‘PIIHM-II’)

Endless Summer BloomStruck Bigleaf Hydrangea

  • Ombre Range of Bloom Colors
  • Flowers in the Shade
  • Disease Resistance
  • Compact Habit
  • Flower Buds Emerge in Early Spring
  • Blooms on Last Year’s Wood and New Growth
  • Reblooms All Summer Long
  • Dark Green Leaves
  • Unique Contrasting Red Stems
  • Super Hardy and Super Easy
  • Flower Color Depends on Your Soil pH
  • Add Lime to Soil for Pink Flowers
  • Add Sulphur to Soil for Blue Flowers

Decorate your summer by simply adding Endless Summer® BloomStruck® Hydrangea (Hydrangea macrophylla PIIHM-II’ PP 25,566) to your landscape. It blooms from late spring all the way into fall! And what blooms!

These are majestic, large and elegant mophead blooms and they shine in a range of jewel tones from rich, clear pink to glorious purple to royal blue. Sometimes, you’ll get the full range on one plant!

It’s quite simple to select the color you prefer. With a simple soil amendment, you can change the color of your Endless Summer BloomStruck Hydrangea to match your style.

If you’ve never tried the world-famous Endless Summer line, BloomStruck is a great plant to start with. This variety represents a big improvement over the Hydrangeas of old. It was made a home garden favorite, standing head and shoulders above other varieties.

Why? Well, most Hydrangeas bloom on old or last years wood and that’s all she wrote. But BloomStruck blooms on both old wood left standing from last season, then it follows up with beautiful flowers on new growth emerging from the ground.

You’ll enjoy an endless progression of flowers produced through the summertime. Let BloomStruck dazzle you with its intense display of light blues, pinks and dark purple blooms. The plants seem to change daily and there is always something to notice. You might think this plant was grown just to entertain you and your guests!

Our expert growers love these hardy, disease-resistant plants. The wonderful dark green foliage is arrow-shaped. The leaves are borne on purple-red stems and feature red petioles and red veins. Sounds exciting, right? They make a fabulous contrast to the large blooms.

How to Use Endless Summer BloomStruck Hydrangea

BloomStruck’s enormous pom-pom shaped mophead blooms are professional florist grade quality. Start your vase collection now, as you’ll be able to bring armloads indoors to place all over your tablescapes.

One will fill a simple table vase. Five blooms placed in a shallow bowl look like you spent a fortune at a Beverly Hills florist!

At only 3 to 4 feet tall, this plant can go anywhere in the landscape that gets afternoon shade. Use a long row of them on the east side of your property, or nearby taller evergreen trees.

For a compact low hedge, plant 3 feet apart on center. You’ll measure from the center of one to the center of the next.

Bring out the BloomStruck Hydrangeas wonderful display of color with a few simple guidelines. First, use a Soil Testing kit to determine the pH of your soil. Anything below 7 is considered acidic.

For the best shade of blues and purples, the soil pH should be between 5.5 to 5.8. Adjust your soils using Aluminum Sulphate, following the directions on the package until you achieve the desired pH over time. Add garden lime to warm up the tones to a lovely clear pink.

Please be patient. It may take a season or two to get things exactly right. Adjusting the pH can have a dramatic effect on the color and overall display, so don’t be afraid to experiment.

Decide if you want vivid rose pink, deep luscious purple, brilliant blue or everything in between, on the BloomStruck Hydrangea. Change them every year, if you so desire.

Leave the last blooms of the season standing on the plant for interest during the winter months. They’ll dry on the shrub and offer winter protection. The dried blooms will give you something great to look at until things start heating up again for spring.

Tips for Care

Plant in a location with moist soils that are well-drained and rich in organic matter. BloomStruck won’t tolerate standing water. If needed, simply raise your planting to 12 to 18 inches above the soil line to improve oxygen to the root.

Hydrangeas really benefit from being mulched well. Apply at least 3 to 4 inches of mulch spread out 3 feet from the outside of the canopy. Apply Dr. Earth Acid Lovers Acid Fertilizer to maintain the soil biology and help sustain your pH for those pretty blue blooms.

This is a beautiful compact selection and only needs a limited amount of maintenance. In the first few years, only cosmetic pruning to remove winter damaged stems is needed to shape the plant.

After the 3rd year, remove twiggy growth and remove a portion of the older growth to make room for new shoots. These can be removed to the ground or cut back to a point in the spring.

With the extra-strong stems, above average heat tolerance and great disease and powdery mildew resistance, BloomStruck is an outstanding garden plant.

The one-two punch of beauty and hardiness make the Endless Summer BloomStruck Hydrangea one you don’t want to miss.

Endless Summer BloomStruck Bigleaf Hydrangea (Hydrangea macrophylla ‘PIIHM-II’) Details

Common name Endless Summer BloomStruck Bigleaf Hydrangea
Botanical name Hydrangea macrophylla 'PIIHM-II'
Plant type Deciduous
Hardiness zone 4-9
Growth rate Fast
Height 3 - 4 ft.
Width 4 - 5 ft.
Sunlight Partial Shade
Moisture Medium
Soil condition Well Drained
Pollinator-friendly Yes
Pruning time After Flowering
Flower color Blue or Pink
Leaf color Dark Green