Tuff Stuff Top Fun™ Reblooming Mountain Hydrangea

Hydrangea serrata 'SMNHSG'

Proven Winners®

Tuff Stuff Hydrangea Rebounds All Season with Compact, Hardy Mountain Genetics
Cold Hardy: Thrives in Zones 4-9
Grows 2-3 ft Tall and Wide
Showy Pink Blooms From Early Summer to Early Fall
Ideal for Mass Planting in Asian Gardens

$26¹⁴

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Find your Growing Zone

Plant Size

Quart Container #3 Container

Product variants

Planting & Care

Where to Plant

Sunlight: Aim for about 4 to 6 hours of direct sun to ensure the best bloom color and stem strength. In hotter climates, provide protection from the intense afternoon sun to prevent wilting, while gardeners in cooler zones can plant in full sun.
Soil: Plant in rich, well-draining soil that stays evenly moist without becoming waterlogged. If your soil is heavy clay or very sandy, mix in compost or peat moss to improve texture and hold the right amount of moisture.

Watering Requirements

Give this shrub consistent moisture throughout its first year to help the shallow root system establish. While it becomes more resilient once settled, inconsistent watering often leads to wilting leaves and significantly fewer flowers during the rebloom cycle.

Pruning Tips

Since this variety blooms on both old and new wood, avoid cutting it back hard or you will lose the first flush of flowers. Simply trim off any dead wood or winter-damaged stems in early spring to tidy up the plant and encourage vigorous new growth.

Fertilizer Needs

Apply a slow-release granular fertilizer formulated for flowering shrubs or roses in early spring just as new leaves emerge. Avoid high-nitrogen fertilizers late in the summer, as this encourages soft growth that will not survive the winter cold.

Delivery and Shipping

Shipping Rates

Ships in 7-10 business days • Tracking provided • Weather protected

Under $50	$9.99
$50 - $99.99	$14.99
$100 - $149.99	$16.99
$150 - $198.99	$24.99
$199+	FREE

✓ Zone-specific timing • ✓ Professional packaging • ✓ Health guarantee

Understanding Our Container Sizes

At Nature Hills, our plants are sold in industry-standard nursery containers. You will notice we use the word "container" rather than "gallon." Container numbers follow a nursery trade size standard, not liquid volume. The number tells you the plant's size category and general maturity level. A larger container means a more established plant with a stronger root system.

Container Sizes

Quart

Plant age: 6 months to 1 year
Best for: Ground covers, perennials, ornamental grasses
What to expect: Our smallest and most affordable size. Well-suited for planting in multiples across a large area. Allow 1 to 2 seasons for full establishment.

#1 Container

Plant age: 1 to 2 years
Best for: Shrubs, perennials, smaller trees
What to expect: About the size of a large coffee can. A well-developed root system in a manageable size. Good value choice when you have time to let the plant grow into the space over a season or two.

#2 Container

Plant age: 2 to 3 years
Best for: Shrubs and trees where you want faster establishment
What to expect: A noticeable step up from a #1 in both plant size and root development. Good choice when you want visible presence without going to a larger size.

#3 Container

Plant age: 3 to 4 years
Best for: Most plants, most situations — flowering trees, shade trees, evergreen shrubs
What to expect: Our most popular size. Strong, developed root system. Plants in a #3 container make an immediate visual impact from day one. If you want a head start rather than waiting seasons for a plant to fill in, this is typically the right choice.

#5 Container and Larger

Plant age: 4 to 5+ years
Best for: Specimen plants, privacy screens, maximum instant impact
What to expect: Large, mature plants ready to make an immediate statement in your landscape. We also carry #7 and larger sizes for select varieties.

Why "Container" and Not "Gallon"?

Nursery container sizes follow an industry trade standard established for the nursery and horticulture industry. The number is a size designation, not a measurement of liquid volume. Actual soil volume varies by plant type, root mass, and growing medium. Using "container" is the accurate industry term. When you see #1, #2, or #3, think of it as the plant's size tier, not a gallon measurement.

Root Pouch Containers

Some Nature Hills plants arrive in a Root Pouch, a breathable fabric container made from 100% recycled materials. Root Pouches encourage denser root development through air pruning, which discourages root circling and promotes a stronger, more fibrous root ball at the time of planting.

Plants growing in Root Pouch fabric containers, showing the breathable woven fabric construction

There are two types. Knowing which one you have changes how you plant:

Degradable (brown or tan fabric): Plant the entire pouch directly in the ground. The fabric breaks down naturally in the soil over time.
Non-degradable (black or gray fabric): Remove the pouch before planting. Cut the bottom open with scissors, then peel the sides away. The fibrous root ball will hold its shape.

Not sure which type you have? Check the tag on your plant or contact us and we will confirm.

Full Root Pouch planting guide

Choosing the Right Size

Size	Plant Age	Best For
Quart	6 mo to 1 yr	Ground covers, perennials, grasses. Budget-friendly for mass plantings.
#1 Container	1 to 2 yrs	Shrubs, perennials, small trees. Value choice for patient gardeners.
#2 Container	2 to 3 yrs	Shrubs and trees where you want faster establishment.
#3 Container	3 to 4 yrs	Most plants. Immediate visual impact. Our most popular size.
#5 and larger	4+ yrs	Specimen plants, privacy screens, maximum instant impact.

Still not sure which size is right for your project? Our plant specialists are happy to help. Contact us and we will point you in the right direction.

Plant specifications
Plant Characteristics	Cold hardy, Flowering, Reblooming, Attracts pollinators, Disease resistant, Container Friendly, Non-invasive
Hardiness Zone	6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Sunlight	Full sun, Partial shade
Height	2-3 ft
Width	2-3 ft
Watering Needs	Moderate
Preferred Soil	Clay, Loamy, Peaty, Sandy
Growth Rate	Moderate
Growth Habit	Bushy, Compact
Blooms In	Fall, Summer
Flower Color	Pink
Foliage Color	Green
Pet Safety	Toxic to pets
Suitable Space	Outdoors
Plant Name	Hydrangea
Botanical Name	Hydrangea serrata 'SMNHSG'
Species	serrata
Cultivar	SMNHSG
Class	Magnoliopsida, Cornales
Does Not Ship To	AK, HI, ID, MT, PR

Lacecap blooms in pretty soft pink, the Tuff Stuff Top Fun™ Reblooming Mountain Hydrangea (Hydrangea serrata 'SMNHSG') is a fantastic long-blooming ornamental shrub with small, compact mounds of textured green foliage!

Top Fun™ has dainty lacecap pink bloom takes on blue to purple tones (depending on the soil pH) with buttonlike green buds in the centers of the flat-topped clusters as the pink bracts on the outer blooms dance around the edges of each bloom! Pollinators adore Mountain Hydrangea flowers for their ample nectar resources!

Hardy throughout USDA growing zones 4 to 9, these compact deciduous shrubs flower throughout the summer and the dried flowers add fall interest! Growing just 2-3 feet in height and width, these rounded shrubs are wonderfully adaptable and easy to grow!

Planting and Application:

Reblooming Mountain Hydrangea are wonderful accents throughout the garden no matter how much room you have available! These petite flowering shrubs just bloom and bloom as edging, facer plants along your foundation plantings, and as low property division in rows! Ideal in Cottage gardens, Pollinator borders, and as shining specimens!

Top Fun™ blooms look fantastic in the landscape as they do in a vase bouquet! Add them to your Cutting garden as a backdrop planting or focal point shrub. Highlight sunny decks and balconies with these small shrubs planted in large planters or pots, or plant in containers around the pool! Create dense bird-friendly shelters by planting groups or in rows for low screening.

Lacy Pink Blooms With Green Centers
Textured Ornate Green Leaves
Round Compact Small-Sized Shrubs
Pollinator-Friendly & Lovely Cut Flowers
Low Hedges, Accents & Specimens, & Great Container Plants

#ProPlantTips for Care:

Plant Hydrangea shrubs in well-drained soil that is organically enriched in any full sun or partial shade location. Appreciating afternoon shade in hotter climates, Hydrangea also needs a good layer of arborist mulch over the root system to insulate them and keep moisture in the soil more consistently.

Considered an "everbloomer" you really need to see Tuff Stuff™ Hydrangeas to understand their sheer flower power. Since it blooms on old AND new wood, it is an almost non-stop bloomer from early summer and well into fall! Prune your shrub only to remove dead wood in spring, after the new growth begins to emerge. Because these bloom on old and new wood, pruning too much will remove the new flowers! Renewal pruning is best to keep them blooming by removing only one-third of the oldest, fattest stems every 3-5 years, leaving the youngest stems to bloom abundantly.

Mountain Hydrangeas are slightly dependent on soil pH and their pink blooms may take on more of a blue to purple hue. Play with this to your advantage and tweak these shrubs to match them to your garden's décor.

Tuff Stuff™ Hydrangea love moisture and sun but are wonderfully adaptable and mix and match beautifully with each other! Mix Top Fun™ with Ah-Ha® or Tuff Stuff™ Red for a range of flower colors!

Full Sun & Partial Shade
Well Drained Moderate Moisture
Prune Only in Spring
Appreciates Mulch
Blooms on Old & New Wood

Lily Looks™ Tiny Double Dutch Asiatic Lily will catch the eye and attract all the attention with their double brilliant blooms! Order your quality spring-planted bulbs from Nature Hills and we'll ship your order at the proper planting time for your hardiness zone!

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Frequently Asked Questions

How tall and wide does Tuff Stuff Top Fun™ Mountain Hydrangea grow at maturity?

Tuff Stuff Top Fun™ Mountain Hydrangea reaches 2-3 feet in both height and width at maturity. This compact, rounded shrub maintains its small stature throughout USDA zones 4-9. Its petite size makes it perfect for foundation plantings, containers, or tight garden spaces.

How often should I water Tuff Stuff Top Fun™ Mountain Hydrangea?

Water deeply once or twice weekly, allowing soil to dry slightly between waterings. This compact 2-3 foot shrub needs consistent moisture during its long summer blooming period but avoid waterlogged conditions. Check soil moisture regularly and mulch well to retain water. Shop Nature Hills for this easy-care rebloomer.

When and how should I prune Tuff Stuff Top Fun™ Hydrangea?

Prune Tuff Stuff Top Fun™ in late winter or early spring before new growth begins. Since this reblooming hydrangea flowers on both old and new wood, avoid heavy pruning that removes established branches. Simply deadhead spent blooms and remove any dead or damaged stems to maintain the natural 2-3 foot rounded shape.

Does Tuff Stuff Top Fun™ Hydrangea rebloom on new and old wood?

Tuff Stuff Top Fun™ blooms on both old and new wood, giving it excellent rebloom capabilities throughout summer in zones 4-9. This reliable flowering habit means you can prune lightly in late winter without sacrificing blooms, and the compact 2-3 foot shrub will continue producing lacecap flowers all season long.

Is Tuff Stuff Top Fun™ Mountain Hydrangea cold hardy for zone 4 winters?

Yes, Tuff Stuff Top Fun™ Mountain Hydrangea is fully cold hardy in zone 4 winters. This compact reblooming shrub thrives in USDA zones 4-9, reaching just 2-3 feet tall and wide. Plant in well-drained, organically enriched soil and mulch well for best winter protection.

How is Tuff Stuff Top Fun™ Hydrangea shipped, and what is the condition upon arrival?

Tuff Stuff Top Fun™ Hydrangeas arrive as dormant bare-root plants or in containers, depending on the season. The compact 2-3 foot shrubs ship ready to establish in zones 4-9. Plant immediately in well-drained, organically enriched soil with afternoon shade in hot climates.

Can I plant Tuff Stuff Top Fun™ Mountain Hydrangea in full sun?

Yes, Tuff Stuff Top Fun™ can handle full sun in zones 4-9. However, it appreciates afternoon shade in hotter climates for best performance. Plant in well-drained, organically enriched soil and add a good layer of mulch over the root system.