Handkerchief Tree

Davidia involucrata

Late frosts are what spoil it, scorching the new growth just as it opens.

Light Full sun
Height 12 m
Spread 26 ft 3 in
Spacing 800 cm
Root depth 12–24 in
Type
Tree · Perennial
Botanical family
Mixed / other
Foliage color
Green
Flower color
White
Sunlight
Full sun
Feeding
All-purpose balanced
Frost tolerant
Yes
Flowering
May
  • Apr–May Bud Break
  • May–Oct Flowering
  • Oct–Nov Leaf Fall
  • Nov–Dec Winter Dormancy
  • Jan–Apr Winter Dormancy
Plant spacing
26 ft 3 in
In-row spacing
26 ft 3 in
Between rows
32 ft 10 in
Square-foot density
Not suited to SFG
Root system
Woody, shallow and far-reaching
Working depth
12–24 in
Can reach
4 ft down where the soil allows
Spread
52–79 ft across, about 2–3× the width of the plant

Almost all of a tree’s roots are in the top two feet of soil, where the air is, and they run out well past the branch tips. The deep taproot most people picture belongs to the seedling; the tree grows out of it and spends the rest of its life spreading sideways instead.

The habit is Handkerchief Tree’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.

Rhododendrons, Magnolias, Hostas, Ferns