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Sale Balsam smooth hydrangea flower

Hydrangea arborescens 'Balsam' (smooth hydrangea)

Next available Monday or Tuesday

Unavailable Available Only few left Out of Stock Pre-order

'Balsam' is also knows as 'Highland Lace' because of the lacy mophead flowers (see pic for 1,000 words of explanation).

These flowers are remontant - if you prune off the spent flowers, you will likely get a second flush.

The texture of the leaves are evocative of the Appalachian forests (even when seen from a car window - they are along so many roadsides in the mountains) so that Hydrangea arborescens fits into the native forest gardens and suburban-urban gardens of the East Coast with that sense of place many of us are cultivating in our backyards.

This is one of those hydrangeas that will give you fall color. It's the color of our favorite Kerry Gold butter from grass fed cows.

Smooth hydrangea is a cherished shrub that has two check marks in its favor:

✔ it's a native hydrangea
✔ it's a slow colonizer

We love plants that colonize an area. Colonizers do the work of filling in gaps for us, so we think down the road and give them extra feet to spread over the years. This native hydrangea is a gentle colonizer - it plays nicely with its neighbors.

Here's an explanation of the flowers in the pictures.

  • The big while ones are how they look in full glory.
  • There's a close up of the full glory phase - showing how it has a few fertile florets flowers tucked amongst the sterile florets.
  • Then there's a pic next to a true 1 gallon pot for scale (not one of the smaller "trade" gallons) and then a panned-out shot showing the habit in flower.
  • We show two pics of the broccoli phase - just emerging green florets.
  • Then two pictures of mature flower heads. They turn back to chartreuse green with age.

Grower's Note: We grow smooth hydrangeas in RootMaker pots so we induce the best, well-branched, non-circling roots possible. These pots are expensive, so we take your plant out of the pot, then we clean and reuse the pot (recycling!). To ship your plants, we carefully wrap the roots in a compostable plastic bag, then put them in a paper bag; then they are boxed. This triple packaging holds together very tightly during shipment. Please have a pot on hand to shift them up into, but they will hold as-is in the packaging we send them for several days before planting (please water them!). The goal of this system is to have good roots and reduce trash.

  • spreads to colonize an area
  • remontant if prune off the first round of spent flower heads (remontant means it will rebloom)
  • cold tolerant
  • heat tolerant
  • remontant
  • long flowering period
  • cut flowers
Common Name
Balsam smooth hydrangea, smooth hydrangea, wild hydrangea, native hydrangea
Other Names
'Highland Lace'
USDA Hardiness Zones
flowering shrub, deciduous
Growth Rate
Flower Color
Showy Flower?
Flower Season
Leaf Colors
  • Spring: medium green
  • Summer: medium green
  • Fall: yellow
Fall Leaf Color Quality
Ornamental Bark?
Bark Feature
Native to USA?
Native To
Eastern US
Soil Moisture Requirements
moist-but-draining, no standing water
Soil pH Requirements
acid, neutral, alkaline
Light Requirements
sun, part shade, shade
To Make It Thrive
Give Hydrangea arborescens 'Balsam' rich soil plus consistent moisture in a soil that drains. It may require extra watering, but no standing water. Smooth hydrangeas loves a layer of compost, then a layer of mulch on top - both to provide a rich and cool root zone. Place it in full shade or afternoon shade in the deep south (zones 8 and 9), but full sun is okay farther north. Best flowering is with some sun.
Plant Patent
Is this a pollinator plant?
Smooth hydrangea in general is definitely a pollinator plant. On 'Balsam' we see some fertile florets tucked amongst the showy sterile florets, but we have yet to see insects working them.

Other types of smooth hydrangea cultivars (lacecap types) are fertile and therefore bees come to them for nectar. We are collecting some to propagate and offer here in the future.

Rule of thumb: If you run across mophead smooth hydrangeas, such as this one, 'Annabelle', and 'Incrediball', you can assume they are mostly sterile. The fertile ones aren't quite as showy, so there's this trade-off to balance as best you see fit in your own garden. We like to have some of these mopheads coupled with less showy fertile forms. Personally, we enjoy looking at the fertile (lacecap) forms just as much as the largely sterile (mophead) types.

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