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Maine · Zones 3–6

Native Flowering Shrubs in Maine

Native shrubs that flower for pollinators, fruit for birds, and give the garden its year-round backbone and structure. Every species here is genuinely native to Maine and the wider flora of the Northeast and hardy through zones 3–6 — proven performers for Maine's cool, short summers climate across Acadian forest & coastal lowlands, not a generic list. Local standouts include Winterberry and Smooth Hydrangea. Shrubs are the bones of a garden — they hold their shape through winter, screen what you would rather not see, and pack flowers, berries, and fall color into a single long-lived plant. Give them room to reach full size rather than shearing them into boxes, plant in fall for the best root establishment, and choose species suited to your light and moisture so they thrive on near-zero care.

The plants

12 native species for Maine

Each one native to your region and hardy in zones 3–6 · see this collection in other states.

Shrub

Winterberry

Ilex verticillata

Where Maine meets the Northeast, long-lived woody structure with flowers for pollinators and fruit for birds, for clay and loam ground and 5–10 ft tall, flowering as it flowers in Jun and Jul.

  • Full–part sun
  • Average–wet
  • 5–10 ft
  • Blooms Jun–Jul
Shrub

Smooth Hydrangea

Hydrangea arborescens

Where Maine meets the Northeast, a four-season shrub — bloom, fruit, and winter form — 3–5 ft tall and spreading 3–5 ft — it blooms Jun through Aug.

  • Part shade
  • Average
  • 3–5 ft
  • Blooms Jun–Aug
Shrub

Buttonbush

Cephalanthus occidentalis

Where Maine meets the Northeast, a woody native that holds its shape through winter and flowers in season, 5–10 ft tall and good through zone 9, flowering as it blooms Jun through Aug.

  • Full–part sun
  • Average–wet
  • 5–10 ft
  • Blooms Jun–Aug
Small tree

Serviceberry

Amelanchier canadensis

Where Maine meets the Northeast, a shrub that gives the border its bones, 15–25 ft tall and 10–20 ft wide — it flowers in Apr and May.

  • Full–part sun
  • Average–wet
  • 15–25 ft
  • Blooms Apr–May
Shrub

Arrowwood Viburnum

Viburnum dentatum

Where Maine meets the Northeast, flowers, then berries for the birds, on a long-lived native shrub, for clay and loam ground and creamy white flowers — it flowers in May and Jun.

  • Sun to shade
  • Average–wet
  • 6–10 ft
  • Blooms May–Jun
Shrub

American Elderberry

Sambucus canadensis

Where Maine meets the Northeast, a woody native that holds its shape through winter and flowers in season, cold-hardy to zone 3 and creamy umbels flowers — it flowers in Jun and Jul.

  • Full–part sun
  • Average–wet
  • 6–12 ft
  • Blooms Jun–Jul
Shrub

Fragrant Sumac

Rhus aromatica

Where Maine meets the Northeast, long-lived woody structure with flowers for pollinators and fruit for birds, yellow catkins flowers and happy in sand, clay, rocky, and loam soil; it flowers in Mar and Apr.

  • Full–part sun
  • Dry
  • 2–6 ft
  • Blooms Mar–Apr
Shrub

Ninebark

Physocarpus opulifolius

Where Maine meets the Northeast, a flowering native shrub for the garden's backbone, spreading 5–10 ft and white to pink flowers — it flowers in May and Jun.

  • Full–part sun
  • Dry to wet
  • 5–10 ft
  • Blooms May–Jun
Shrub

New Jersey Tea

Ceanothus americanus

Where Maine meets the Northeast, flowers, then berries for the birds, on a long-lived native shrub, happy in sand, rocky, and loam soil and spreading 2.5–4 ft — it blooms May through Jul.

  • Full–part sun
  • Dry
  • 2–3.5 ft
  • Blooms May–Jul
Shrub

Red-Twig Dogwood

Cornus sericea

Where Maine meets the Northeast, a four-season shrub — bloom, fruit, and winter form — 6–9 ft tall and 6–10 ft wide; it flowers in May and Jun.

  • Full–part sun
  • Average–wet
  • 6–9 ft
  • Blooms May–Jun
Shrub

Spicebush

Lindera benzoin

Where Maine meets the Northeast, a flowering native shrub for the garden's backbone, hardy in zones 4–9 and spreading 6–12 ft; it flowers in Mar and Apr.

  • Part shade
  • Average–wet
  • 6–12 ft
  • Blooms Mar–Apr
Evergreen shrub

Inkberry Holly

Ilex glabra

Where Maine meets the Northeast, the kind of native shrub a border is built around, reaching 4–8 ft and 4–8 ft wide, and it flowers in May and Jun.

  • Full–part sun
  • Average–wet
  • 4–8 ft
  • Blooms May–Jun
Sourcing

Where to find these in Maine

Seeds & live plants on Amazon

Seed packets, plugs, and starter plants for many of these species ship to your door.

Browse on Amazon

Some links here are affiliate links — we may earn a small commission at no extra cost to you. The surest source of locally-adapted stock is a native-plant nursery or a native plant society sale in your area.