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Oakleaf hydrangea 'Munchkin'

Hydrangea quercifolia 'Munchkin' · Hydrangeaceae

Oakleaf hydrangea 'Munchkin' (Hydrangea quercifolia 'Munchkin') in flower
Photo: Eric in SF, via Wikimedia Commons (CC BY-SA 3.0)

A dwarf oakleaf hydrangea, waist high, with upright white cones that turn pink and mahogany-red leaves in autumn.

Size
3½ ft tall, 4½ ft wide
Zones
5 to 9
Light
Full sun to part shade
Flowers
Late June to late August
Pets
Toxic (mild)
Job in a bed
Anchor

A bed built around oakleaf hydrangea 'Munchkin'

The planner designed this bed around oakleaf hydrangea 'Munchkin' when this page was made: a 16 × 8 ft (4.9 × 2.4 m) English border in zone 6, part sun. It chose the other plants from the 708 that suit those conditions, and says below why oakleaf hydrangea 'Munchkin' stands where it does.

A 16 × 8 ft (4.9 × 2.4 m) bed at eye level in late July: Oakleaf hydrangea 'Munchkin', Green-and-gold, Coral bells 'Firefly', White mugwort, Joe Pye weed 'Little Joe', Palm sedge, Asiatic lily, Camassia, Easter lily.
A 16 × 8 ft (4.9 × 2.4 m) English border in zone 6, part sun, seen from the path in late July.
4. White mugwort44. White mugwort44. White mugwort45. Joe Pye weed 'Little Joe'55. Joe Pye weed 'Little Joe'55. Joe Pye weed 'Little Joe'51. Oakleaf hydrangea 'Munchkin'13. Coral bells 'Firefly'33. Coral bells 'Firefly'33. Coral bells 'Firefly'32. Green-and-gold22. Green-and-gold22. Green-and-gold23. Coral bells 'Firefly'33. Coral bells 'Firefly'33. Coral bells 'Firefly'33. Coral bells 'Firefly'33. Coral bells 'Firefly'32. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold23. Coral bells 'Firefly'33. Coral bells 'Firefly'33. Coral bells 'Firefly'33. Coral bells 'Firefly'33. Coral bells 'Firefly'35. Joe Pye weed 'Little Joe'54. White mugwort47. Asiatic lily77. Asiatic lily77. Asiatic lily79. Easter lily99. Easter lily99. Easter lily98. Camassia88. Camassia88. Camassia82. Green-and-gold22. Green-and-gold22. Green-and-gold26. Palm sedge66. Palm sedge66. Palm sedge62. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold22. Green-and-gold29. Easter lily98. Camassia88. Camassia8
From above, to scale. Each circle is one plant, as wide as the room it needs.

The plants

  1. 2 Green-and-gold × 30, yellow
  2. 3 Coral bells 'Firefly' × 13, red
  3. 4 White mugwort × 4, cream
  4. 5 Joe Pye weed 'Little Joe' × 4, pink
  5. 6 Palm sedge × 3, green leaves
  6. 7 Asiatic lily × 3, orange
  7. 8 Camassia × 5, blue
  8. 9 Easter lily × 4, white

Why this plant

  • The only dense clusters. The others are daisies, airy sprays, plumes and others. Shape reads at a distance, where colours blur.
  • Part of the bed's structure. Shrubs and grasses keep their shape when the perennials die down. So does palm sedge.

Why here

  • At the back. At 3½ ft it is seen over palm sedge (2½ ft) in front of it, and has nothing behind it to hide.
  • A step in the back row. Next to Joe Pye weed 'Little Joe' (4 ft) and white mugwort (5 ft): no two neighbours there are the same height, so the back steps up and down like a skyline.
  • One plant, alone. A shrub is seen as an object, and needs clear ground around it.

Why now

  • In flower for 10 weeks. From late June to late August.
  • Part of the bed's peak. With coral bells 'Firefly', Asiatic lily and Easter lily in late June: 4 kinds at once. No week has more.

Planned as an English border: 6 of the 7 groups (86%) are drifts, longer along the bed than they are deep. Green-and-gold repeats along the bed to tie it together. There is more green-and-gold than anything else, 30 plants in all.

The planner's own design check: 12 Excellent, 5 Good.

Open this bed in the planner Change its size, the sun or the style, move plants about, or swap one for another.

Where oakleaf hydrangea 'Munchkin' goes in a border

At 3½ ft it belongs in the middle of a bed. In the planner's ten height classes it is moderately tall (3 to 4 ft).

Its job: anchor. A shrub that gives the bed permanent structure. Planted singly, as soon as the front edge is laid; everything else is arranged around it.

From the US National Arboretum. It brings everything good about the oakleaf hydrangea to a small garden, and stays dense without pruning.

  • Oakleaf hydrangea for a small garden
  • Foundation planting
  • Autumn colour

What to plant with oakleaf hydrangea 'Munchkin'

Plants recorded as good partners for it, and what each pairing does:

  • Hosta: its green leaves are a setting for the flowers, before and after; spires rising out of its mound; low enough (18 in) to stand in front of it.
  • Coral bells: its burgundy leaves are a setting for the flowers, before and after; medium leaves against its bold ones; low enough (12 in) to stand in front of it.
  • Japanese forest grass: its green leaves are a setting for the flowers, before and after; fine leaves against its bold ones; low enough (18 in) to stand in front of it.

Questions about oakleaf hydrangea 'Munchkin'

Does oakleaf hydrangea 'Munchkin' need sun or shade?

Oakleaf hydrangea 'Munchkin' grows in full sun (6 or more hours of direct sun a day), part sun (4 to 6 hours of sun, including some afternoon sun) and part shade (2 to 4 hours of sun, mostly in the morning).

It wants soil that stays evenly moist, rich in organic matter, and a good soak in dry spells. Once settled in, it stands drought.

What zones does oakleaf hydrangea 'Munchkin' grow in?

USDA zones 5 to 9. It is hardy to zone 5, which means it survives winter nights down to about −10 °F (−23 °C).

Gardening in Canada? Use the USDA zone for your town: Canada's own zone map uses different numbers.

When does oakleaf hydrangea 'Munchkin' flower in my zone?

In zone 5 it flowers late June to late August. As a summer flower it moves about half a week for every zone: earlier where it is warmer.

Roughly when oakleaf hydrangea 'Munchkin' is in flower
Zone 5Late June to late August
Zone 6Late June to late August
Zone 7Mid June to mid August
Zone 8Mid June to mid August
Zone 9Early June to early August

Worked out from Hopkins' bioclimatic law: spring arrives about four days later for each degree of latitude north, and one zone is roughly two degrees. A warm spring or a cold one moves any garden two weeks either way.

How far apart should oakleaf hydrangea 'Munchkin' be planted?

3½ ft (110 cm) apart, from the middle of one plant to the middle of the next. That is a little closer than its full width of 4½ ft (130 cm), so a group knits into one patch.

It grows 3½ ft (100 cm) tall. Give it the full distance from anything taller, or it will lean out towards the light.

How many oakleaf hydrangea 'Munchkin' plants do I need?

At 3½ ft apart, set out in staggered rows:

  • 1 to fill 10 square feet (about 1 m²)
  • 3 for a single row 10 ft (3 m) long
  • 3 to fill a 4 × 8 ft bed on its own

In a mixed border, plant it as one, planted singly: it is the bed's structure, and everything else is arranged around it.

In the bed above, the planner used one in one group.

Is oakleaf hydrangea 'Munchkin' poisonous to dogs and cats?

Yes: mild toxicity to people, dogs, cats and horses. Leaves and buds can cause vomiting and diarrhoea if eaten.

Rated from NC State Extension and the ASPCA. Where references disagree, the more cautious rating is used.

Is there a pet-safe plant like oakleaf hydrangea 'Munchkin'?

These come closest to doing what oakleaf hydrangea 'Munchkin' does, and no toxicity is recorded for them:

  • Summersweet 'Hummingbird': the same job in a bed and the same colour; 8 in narrower, flowers mid July to mid August.
  • Dwarf fothergilla: the same job in a bed and the same colour; 8 in narrower, flowers late April to mid May.

Matched the way the planner's Swap button matches plants: the same job in a bed, then size, then flowering time.

Do deer eat oakleaf hydrangea 'Munchkin'?

They may. NC State does not list it as resistant to deer or rabbits. Where they visit, protect it, or plant it among ones they avoid.

What flowers after oakleaf hydrangea 'Munchkin'?

Oakleaf hydrangea 'Munchkin' is over by late August. These start as it finishes and carry the same spot on, so it never goes flat:

  • Garden chrysanthemum: from mid September to late October, 24 in tall, to stand in front of it and cover its fading stems.
  • Japanese anemone: from mid August to early October, 3 ft tall.
  • Sedum 'Autumn Joy': from mid August to mid October, 24 in tall, to stand in front of it and cover its fading stems.

What does oakleaf hydrangea 'Munchkin' look like in winter?

Oakleaf hydrangea 'Munchkin' drops its leaves and stands as bare branches. That is when to see its shape, and to prune it if it needs pruning.

Is oakleaf hydrangea 'Munchkin' good for bees and butterflies?

Oakleaf hydrangea 'Munchkin' is visited by pollinators, butterflies and songbirds.

It is native to the United States (this is a named variety of the native plant).

More Hydrangea

In these guides

Zone guides: Zone 5 · Zone 6 · Zone 7 · Zone 8 · Zone 9

In flower in: June · July · August

Every fact on record

Type
Shrub
Size
3½ ft (100 cm) tall, 4½ ft (130 cm) wide
Plant
3½ ft (110 cm) apart
Height class
Moderately tall (3 to 4 ft)
Place in the bed
Middle
Flowers
Late June to late August; dense clusters; white, pink
Leaves
Bold texture, deciduous; dark green, red
Shape
Rounded, clumping
Hardy in
USDA zones 5 to 9
Light
Full sun, part sun, part shade
Soil
Rich, evenly moist
Water
Moderate
Feeding
Light, in spring
Family
Hydrangeaceae
Comes from
Southeastern USA
Attracts
Pollinators, butterflies, songbirds
Stands up to
Drought

Checked against NC State Extension and ASPCA poison lists. Flowering times are for zone 5: later in colder zones, earlier in warmer ones. Toxicity and spread information is a general gardening guide, not veterinary or medical advice, and invasive status varies by region. If a person or pet eats a plant, contact poison control or a vet. Check your local invasive species list before planting anything with a spread warning.