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Amelanchier x grandiflora

Shrub
Spring-flowering; fruit ripens early summer
Full sun to partial shade

Also known as: Apple Serviceberry

When & where

Season
Spring-flowering; fruit ripens early summer
USDA zones
Hardy zones 4–8
Sun
Full sun to partial shade
Start indoors
Not typically started indoors — sow outdoors in fall or stratify
Direct sow outdoors
Fall sowing or stratified seed in early spring
Days to harvest
2–4 years to fruit from seed

Germination

Germination time
Variable — often 30–90 days after stratification
Soil temperature
60–70°F after cold stratification

Spacing & depth

Sow depth
1/2 in (12 mm)
Seed spacing
Sow 2–3 per pot; thin to strongest
Mature plant spacing
8–15 ft (2.4–4.5 m)
Row spacing
15–20 ft

How to plant

Hybrid serviceberry seed needs 90–120 days cold-moist stratification. Sow 1/2 inch deep in rich, well-drained soil.

Pre-sow treatment

Cold stratification

Cold-moist stratify 90–120 days.

Grower's tip

A hybrid prized for large, sweet berries and showy spring blooms. Excellent for edible landscaping.

Woody plant facts

USDA zones
Hardy zones 4–8
Mature height
8–10 ft dwarf · 12–18 ft semi-dwarf · 20–30 ft standard
Mature spread
8–25 ft (2.4–7.6 m), matching the rootstock
Years to fruit
2–4 years dwarf · 4–8 years standard · 6–10 years from seed
Chill hours
500–1,000 for most; low-chill cultivars from 250
Pollination
Needs a second apple or crabapple in the same bloom group. Crabapples are excellent universal pollenizers.
Rootstock
M9/B9 dwarf (needs staking for life), M26 and G935 semi-dwarf, seedling for a full standard.
Planting depth for seed
Stratify pips 60–90 days, then sow 1/2 in (12 mm) deep.
Soil pH
6.0–7.0
Disease & problem notes
Scab, cedar-apple rust and fire blight. Pick a resistant cultivar, rake fallen leaves, and thin for airflow.

Soil preferences

Soil type

Free-draining garden soil. Most shrubs fail from wet feet, not poor fertility.

pH range

5.5–7.0 for most; acid-lovers (rhododendron, blueberry) want 4.5–5.5.

Amendments

Mulch a wide ring with compost or bark each spring; keep mulch off the stems.

Watering

Frequency

Deep soak weekly for the first two seasons, then only in drought.

Method

Slow soak over the root zone, not the crown.

Over vs. under

Overwatered: yellowing leaves, dieback, sour soil. Underwatered: leaf scorch, early leaf drop, sparse bloom.

Top-water or bottom-water?

Prefers top-watering — Trees are always top-watered — deep slow soak at the drip line, never at the trunk. Bottom-watering only makes sense for nursery seedlings.

Temperature tolerance

Ideal daytime air temp

Broad — hardy shrubs handle 35–90°F once established

Ideal nighttime air temp

Down to the species' rated zone minimum

Frost sensitivity

Hardy once established; first-winter seedlings need a mulch collar or cold frame.

Special germination requirements

Most temperate tree seed needs cold stratification (30–120+ days at 34–41°F) — see each species entry for the exact time.

Container growing

Container-suitable?

Possible with the right cultivar

Recommended pot size

10–20 gal (38–76 L) for a long-term potted shrub

Notes

Dwarf and compact forms do fine in large pots; full-size shrubs eventually need the ground.

Detailed harvesting

Prune rather than harvest — take out dead, damaged and crossing stems, and cut spring bloomers right after flowering so you don't remove next year's buds.

Post-harvest storage & preservation

Not applicable — this is a permanent planting.

Culinary, medicinal & other uses

Structure, hedging, screening, wildlife cover and season-long flower or berry interest.

Medicinal or traditional uses are shared for interest only — this is not medical advice. Consult a qualified professional before using any plant medicinally.

Seed saving

Pollination

Mostly insect-pollinated; seedlings vary from the parent.

Isolation needs

Not practical. Named cultivars must be grown from cuttings, not seed.

How to save

Collect ripe seed or clean berries in fall, then cold-stratify before spring sowing.

Your zone's planting calendar

Pick your USDA hardiness zone and we'll estimate the key dates for amelanchier x grandiflora in your area. These are regional averages — always check your own last-frost forecast before sowing.

My Amelanchier x grandiflora notes

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