Serviceberry

Amelanchier lamarckii

also called saskatoon, juneberry, shadbush

Spring blossom followed by dark berries in early summer — worth netting, because the birds reach them first.

Light Sun or light shade, with full sun giving the best crop.
Water Water through the first year; after that it copes with drought.
Height 5 m
Spread 13 ft 1 in
Spacing 450 cm
Root depth 12–24 in
Type
Shrub · Perennial
Botanical family
Mixed / other
Foliage color
Green
Flower color
White
Sunlight
Sun or light shade, with full sun giving the best crop.
Watering
Water through the first year; after that it copes with drought.
Feeding
A compost mulch in spring; it rarely needs feeding beyond that.
Frost tolerant
Yes
Flowering
April
Pruning
Little pruning is needed after flowering — take out dead wood and stop there.
  • Mar–Apr Bud Break
  • Apr–Jun Flowering
  • Jun–Jun Fruit Set
  • Jun–Oct Harvest
  • Oct–Dec Leaf Fall
  • Jan–Mar Leaf Fall
Plant spacing
14 ft 9 in
In-row spacing
14 ft 9 in
Between rows
18 ft 1 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
20–26 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.

It suckers from the base into a multi-stemmed thicket, which is how it grows naturally. Take the suckers off if you want a small tree, or leave them and let it be a shrub.

The habit is Serviceberry’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.

Blueberries, Heather, Ferns