Seven-Son Flower

Heptacodium miconioides

Late summer is its moment, when little else among the shrubs is in flower, and it asks for very little the rest of the year.

Light Full sun to partial shade.
Water Regular water until established, then drought-tolerant.
Height 4 m
Spread 9 ft 10 in
Spacing 300 cm
Root depth 12–24 in
Type
Shrub · Perennial
Botanical family
Mixed / other
Foliage color
Green
Flower color
White
Sunlight
Full sun to partial shade.
Watering
Regular water until established, then drought-tolerant.
Feeding
A light feed in spring.
Frost tolerant
Yes
Flowering
August
Pruning
Shape it in late winter; it needs little.
  • Apr–Aug Bud Break
  • Aug–Oct Flowering
  • Oct–Nov Growing
  • Nov–Dec Leaf Fall
  • Jan–Apr Leaf Fall
Plant spacing
9 ft 10 in
In-row spacing
9 ft 10 in
Between rows
12 ft 4 in
Square-foot density
Not suited to SFG
Root system
Woody and fibrous
Working depth
12–24 in
Can reach
3 ft down where the soil allows
Spread
15–20 ft across, about 1.5–2× the width of the plant
Shallowest pot
20 in of soil

A shallow woody framework with the fine feeding roots in the leaf litter above it. Those feeders are mostly under the outer half of the canopy rather than against the stem, which is where water and feed should go.

The habit is Seven-Son Flower’s own; the figures are what that habit usually comes to at this size, not a measurement of this species. Roots follow the soil either way: a compacted pan, a high water table or heavy clay stops them well short of any of it, and deep open ground lets them go further.

  • Generally trouble-free No notable pest or disease problems when grown in the right conditions — one of the easy ones.

Hydrangea, Japanese Anemone, Aster, Ornamental Grasses