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Endless Summer®

Endless Summer® BloomStruck® Bigleaf Hydrangea

Hydrangea macrophylla 'PIIHM-II'

  • BloomStruck Hydrangea Blooms on Old and New Wood for Non-Stop Color Spring Through Fall
  • Cold Hardy: Thrives in Zones 4-9
  • Grows 3-4 ft Tall, 4-5 ft Wide
  • Showy Blue, Pink Blooms From Early Summer to Early Fall
  • Excellent Privacy Screen or Hedge
$6727
Shipping calculated at checkout.
In Stock
Outside your zone (): not guaranteed Why

Rated for zones 4 to 9. Great in a pot brought indoors for winter, or as an annual.

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Houseplant: grows indoors in any zone
Will it grow in your garden?

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Plant Size
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Plant Characteristics Cold hardy, Flowering, Reblooming, Disease resistant, Attracts pollinators, Container Friendly
Hardiness Zone 6a11b
Sunlight Partial shade
Height 3-4 ft
Width 4-5 ft
Watering Needs Moderate
Preferred Soil Clay, Loamy, Peaty, Sandy
Growth Rate Fast
Growth Habit Bushy, Upright
Blooms In Fall, Summer
Flower Color Blue, Pink
Foliage Color Green, Red, Purple
Pet Safety Toxic to pets
Suitable Space Indoors, Outdoors
Plant Name Hydrangea
Botanical Name Hydrangea macrophylla 'PIIHM-II'
Species macrophylla
Cultivar PIIHM-II
Class Magnoliopsida, Cornales
Does Not Ship To AK, HI, ID, MT, PR

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Some of the reviews shown are from related products the merchant grouped with this one.
A
Alfie (United States)
Shipping package was great

Shipping package was great, no fungus growth and plants looked really healthy. They’re actually doing much better than another variety I bought online with a different company.

Healthy plants right out of the box is exactly what we aim for, Alfie, so it's great to hear the packaging held up well on its way to you. BloomStruck is a tough, reliable hydrangea, and it sounds like it's already showing you what it can do. Thanks for giving it a good home.

D
Dennis (United States)
Nature hills is the best!

Beautiful. Beautiful. Beautiful. Healthy. Vibrant. This nursery is spot on!

Hi Dennis, thank you so much for your fantastic feedback on your Endless Summer® BloomStruck® Bigleaf Hydrangea. I’m delighted to hear it arrived healthy and vibrant in your garden.

To keep those lush blooms coming, water deeply once or twice a week during dry spells and apply a 2–3-inch layer of organic mulch around the root zone to help retain moisture and regulate soil temperature. BloomStruck® performs best with morning sun and afternoon shade—too much midday sun can scorch the leaves.

After the first flush of flowers fades, gently deadhead spent blooms to encourage rebloom later in the season. A balanced, slow-release fertilizer applied in early spring will support strong growth and abundant flowering. If you’d like to tweak bloom color, you can adjust soil pH with garden lime (for pink tones) or aluminum sulfate (for blue tones), though BloomStruck® holds its color beautifully on its own.

Thank you again for choosing Nature Hills. We’re here to help with any questions as your hydrangea continues to grow.

Growing with you,
Nature Hills Nursery – Your Trusted Plant Specialists

G
Guest
Beautiful

Beautiful

Hi,

Thank you so much for taking the time to share your lovely feedback! We’re thrilled to hear that you find the plants beautiful. If you ever have questions about caring for them or want recommendations for new additions to your garden, please don’t hesitate to reach out. We’re here to help ensure your garden continues to thrive and bring joy.

Bloom on,
The Nature Hills Plant Knowledge Team

K
Kelly
Beautiful

Beautiful

Hello Kelly,

Thank you so much for your lovely review! We’re delighted to hear that you find your purchase beautiful—it truly means the world to us to know our plants bring joy and beauty to your space. If you ever have any questions or need tips to help your plants thrive, don’t hesitate to reach out. We’re always here to support your gardening journey.

Wishing you happy planting,
The Nature Hills Plant Experts

N
Nite
color for shade area

The BloomStruck is tough enough to take a little sun in my yard and still produce a bunch of colorful blooms. So far this hydrangea has been super easy to grow,

J
Jj
Long blooming

We truly do get blooms all summer lawn in a shady spot in our yard. Great plant.

Hi Jj,

Thank you so much for sharing your experience with the Endless Summer® BloomStruck® Bigleaf Hydrangea! We’re delighted to hear that it’s thriving and providing blooms all summer long, even in a shady spot—that really speaks to this variety’s versatility and hardiness. Be sure to keep an eye on watering in those shadier areas, as consistent moisture will help it maintain such vibrant blooms. If you ever want to encourage even more lush growth, occasional feeding with a balanced fertilizer can work wonders.

We appreciate you choosing NatureHills.com and sharing your success with this wonderful hydrangea!

Bloom on,
The Nature Hills Plant Knowledge Team

N
Nite
color for shade area

The BloomStruck is tough enough to take a little sun in my yard and still produce a bunch of colorful blooms. So far this hydrangea has been super easy to grow,

Dear Nite N.,

Thank you so much for sharing your experience with the Endless Summer® BloomStruck® Bigleaf Hydrangea! We're thrilled to hear that it is thriving in your yard, even with a bit of sun, and that it continues to produce vibrant, colorful blooms. This hydrangea really is a superstar when it comes to ease of care and hardworking performance in partial sun to shade.

If you ever want to enhance the color intensity further, remember that soil acidity plays a significant role. For deeper blue tones, maintaining more acidic soil with additions like garden sulfur or aluminum sulfate can help, whereas adding lime to the soil tends to encourage pinker finished blooms. Given your shade conditions, it’s also great to ensure watered evenly and protect from harsh afternoon sun to keep those luscious blooms coming all season long.

Feel free to check out our planting tips and care guides on our website to get the most from your BloomStruck hydrangea, or reach out if you have any questions along the way — we're always eager to help your garden flourish!

Bloom on,
The Nature Hills Plant Knowledge Team

B
Bell
Shade garden

I have used hydrangeas in my shade garden for many years. Some of the Endless Summer hydrangeas like Bloomstruck are simply wonderful. Mine adds so much color and makes my shady area look bright.

J
Jimmy
Hardy

When you live in a zone 4 climate, you need a hardy plant. I just cannot believe how hardy this plant is here and still produces the awesome blooms it does. I really like this plant!

Hi Jimmy,

Thank you so much for sharing your wonderful experience with the Endless Summer® BloomStruck® Bigleaf Hydrangea! We’re thrilled to hear how well it thrives in your Zone 4 climate and that you’re enjoying those stunning blooms despite the colder conditions. It's truly a testament to how robust and resilient this variety can be.

If you’d like to keep your hydrangea at its best through the seasons, we recommend mulching in late fall to protect the roots and ensuring it gets a balanced fertilizer in spring to encourage vibrant blooms. Also, some light pruning after flowering can help maintain its shape and health.

We’re here any time you want tips or care advice to keep your garden flourishing!

Bloom on,
The Nature Hills Plant Knowledge Team

D
Denny
Large blooms

Hydrangeas produce some of the most amazing blooms and the Bloomstuck is one of best I have tried so far. The stems and the foliage add so much to the attractiveness of this plant

Hi Denny,

Thank you so much for sharing your wonderful experience with the Endless Summer® BloomStruck® Bigleaf Hydrangea! We’re delighted to hear that its large blooms, sturdy stems, and attractive foliage have made such a lovely addition to your garden. Hydrangeas really are a seasonal showstopper, and the BloomStruck® variety is especially admired for its vigor and vibrant colors.

If you’d ever like tips to help those beautiful blooms keep coming all season, consistent moisture during hot periods and occasional feeding with a balanced fertilizer can work wonders. Also, making sure the plant gets morning sun and some afternoon shade really helps maintain bloom health and prevents wilting.

Thank you again for your thoughtful review—we’re thrilled the BloomStruck® Bigleaf Hydrangea is one of your favorites!

Bloom on,
The Nature Hills Plant Knowledge Team

B
Bell
Shade garden

I have used hydrangeas in my shade garden for many years. Some of the Endless Summer hydrangeas like Bloomstruck are simply wonderful. Mine adds so much color and makes my shady area look bright.

Hi Bell,

Thank you so much for sharing your experience with the Endless Summer® BloomStruck® Bigleaf Hydrangea! We’re thrilled to hear that it’s been such a bright and colorful addition to your shade garden. Hydrangeas are truly wonderful for adding life to those shadier spots, and it sounds like you’ve mastered raising them beautifully.

If you’re ever looking for tips on extending blooming season or enhancing color intensity, make sure your soil is slightly acidic (pH around 5.2–5.5) and keep the plants consistently moist — they do appreciate regular watering but good drainage too. We also have some great care guides on our website that might inspire your next garden project.

Thanks again for your kind words, and happy gardening!

Rooting for your garden’s success,
Your Nature Hills Plant Care Team

Frequently Asked Questions

Does BloomStruck Hydrangea bloom on both old and new wood?
  • Yes, BloomStruck Hydrangea blooms on both old wood from last season and new growth that emerges from the ground. This dual blooming habit ensures continuous flowers from late spring through fall, unlike traditional hydrangeas that only bloom on old wood. You'll see the first flush on overwintered stems, followed by repeat blooms on current year's growth.

What are the sunlight requirements for Endless Summer BloomStruck Hydrangea?
  • BloomStruck Hydrangea thrives in partial shade and can even bloom in shadier conditions than most hydrangeas. This variety tolerates morning sun with afternoon shade beautifully. Plant where it gets 4-6 hours of sunlight daily for best blooms, available at naturehills.com.

How do I care for BloomStruck Hydrangea, including watering and fertilizing?
  • Water regularly but ensure good drainage, as BloomStruck hydrangeas prefer consistently moist soil. Fertilize in early spring with a balanced fertilizer when flower buds emerge. Apply lime for pink blooms or sulfur for blue flowers to adjust soil pH and achieve your desired color.

What are the shipping options or seasons for ordering BloomStruck Hydrangea online?
  • BloomStruck Hydrangeas are typically available for spring and fall planting seasons when shipped bareroot or potted. Since flower buds emerge in early spring, fall planting gives the best establishment time. Order early in your preferred season for the widest selection and optimal planting timing.

Is BloomStruck more heat-tolerant than other bigleaf hydrangeas?
  • BloomStruck hydrangeas offer improved heat tolerance compared to traditional bigleaf varieties, thriving in both sun and shade conditions. Their disease resistance and ability to bloom on both old and new wood makes them more resilient overall. Shop at Nature Hills for this hardy, reblooming variety.

What soil pH determines the flower color (blue or pink/purple) on BloomStruck?
  • Acidic soil (pH below 7) produces blue flowers, while alkaline soil (pH above 7) creates pink and purple blooms on BloomStruck hydrangeas. Add sulfur to lower pH for blue flowers, or add lime to raise pH for pink tones.

Is my planting zone suitable for BloomStruck, like Zone for New Orleans, LA?
  • BloomStruck hydrangeas are hardy in USDA zones 4-9, so they'll thrive in New Orleans' zone 9b climate. The super hardy nature of this variety means it can handle your hot, humid summers while still producing continuous blooms. Plant in morning sun with afternoon shade to protect from intense heat.
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