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Plants for Zone 6: Find What Fits Your Garden

Plants for zone 6 need a hardiness range that includes your zone, plus the right light, soil and room to grow. Start with the examples below, then use our library of 2,436 zone-matched records to compare mature size and spacing. Hardiness is a winter-temperature filter, not a survival guarantee.

A mixed border of perennials, shrubs and trees beside a lawn
“Herbaceous Border in the Flower Garden at Cawdor Castle” by David Dixon · CC BY-SA 2.0. Resized and saved as WebP.

Not sure which zone you are in? Look it up by ZIP code

686 of them are perennial or bulb records selected by the stated lifecycle filter →

Three plants for zone 6, compared by light and size

These are starting points for different sites, not a planting combination or a best-for-everyone ranking. Sizes below come from the same records as our plant browser. Check the linked plant profile and the exact cultivar before buying.

Three plants for zone 6, compared by light and size
Plant and sourceLight in our libraryMature height × spread (ft)
Northwind SwitchgrassPanicum virgatum 'Northwind'Plant profileFull sun, Part shade4–5 × 2–3
Black-eyed SusanRudbeckia fulgidaPlant profileFull sun2–3 × 1–2
Christmas DaggerPolystichum acrostichoidesPlant profilePart shade, Shade1–3 × 1–3
Browse more zone 6 plants

Start with 36 examples from 2,436 zone-matched records. Choose a light level and submit to browse matching plants, 36 per page.

Zone 6

Typical annual minimum
-10 to 0°F(-23 to -18°C)
Matching species in our library
2,436

Typical annual minimum temperature: -10 to 0°F. 2,436 species in our library match this zone and light

Design a zone 6 garden with AI →

  • Abeto Coreano

    Abies koreana

    tree
    Zones
    5–7
    Spacing
    6–12 ft
    Mature height
    15–50 ft
    Est. price
    $150–260

  • Rockspray

    Cotoneaster horizontalis

    shrub
    Zones
    5–7
    Spacing
    6–8 ft
    Mature height
    2–3 ft
    Est. price
    $24–55

  • Fraser's Sedge

    Carex fraseriana

    grass
    Zones
    5–7
    Spacing
    1.5–2 ft
    Mature height
    1–1.5 ft
    Est. price
    $8–20

  • Japanese Spikenard

    Aralia cordata 'Sun King'

    perennial
    Zones
    4–8
    Spacing
    3–6 ft
    Mature height
    3–6 ft
    Est. price
    $8–20

  • Blue False Indigo

    Baptisia australis

    perennial
    Zones
    3–9
    Spacing
    3–4 ft
    Mature height
    3–4 ft
    Est. price
    $8–20

  • Creeping Phlox

    Phlox subulata

    groundcover
    Zones
    3–9
    Spacing
    1–3 ft
    Mature height
    0.25–0.5 ft
    Est. price
    $5–12

  • Japanese Striped-Bark Maple

    Acer capillipes

    tree
    Zones
    5–7
    Spacing
    30–40 ft
    Mature height
    30–35 ft
    Est. price
    $150–260

  • Littleleaf Cotoneaster

    Cotoneaster microphyllus

    shrub
    Zones
    5–7
    Spacing
    6–8 ft
    Mature height
    2–3 ft
    Est. price
    $24–55

  • Calamint

    Clinopodium nepeta

    perennial
    Zones
    5–7
    Spacing
    1–2 ft
    Mature height
    1–1.5 ft
    Est. price
    $8–20
  • Northwind Switchgrass

    Panicum virgatum 'Northwind'

    grass
    Zones
    5–9
    Spacing
    2–3 ft
    Mature height
    4–5 ft
    Est. price
    $8–20

  • Bleeding Heart

    Lamprocapnos spectabilis

    perennial
    Zones
    3–9
    Spacing
    1–3 ft
    Mature height
    2–3 ft
    Est. price
    $8–20

  • Cimbru

    Satureja hortensis

    perennialAnnual

    Annual cultivation; the listed range is not a winter-survival rating.

    Zones
    2–11
    Spacing
    1–3 ft
    Mature height
    1.5 ft
    Est. price
    $8–20

  • Cappadocian Maple

    Acer cappadocicum

    tree
    Zones
    5–7
    Spacing
    20–25 ft
    Mature height
    25–30 ft
    Est. price
    $150–260

  • Blue Daphne

    Daphne genkwa

    shrub
    Zones
    5–7
    Spacing
    1.5 ft
    Mature height
    3–5 ft
    Est. price
    $40–85

  • Aspen Fleabane

    Erigeron speciosus

    perennial
    Zones
    5–7
    Spacing
    1–2 ft
    Mature height
    1–2 ft
    Est. price
    $24–55

  • Flying Saucers

    Ipomoea tricolor

    vineAnnual

    Annual cultivation; the listed range is not a winter-survival rating.

    Zones
    2–12
    Spacing
    3–6 ft
    Mature height
    8–10 ft
    Est. price
    $24–55

  • Eastern Red Columbine

    Aquilegia canadensis

    perennial
    Zones
    3–8
    Spacing
    1–1.5 ft
    Mature height
    2–3 ft
    Est. price
    $8–20

  • Blunt-lobed Cliff Fern

    Woodsia obtusa

    perennial
    Zones
    1–10
    Spacing
    2–2.5 ft
    Mature height
    1–1.5 ft
    Est. price
    $8–20

  • Pere David's Maple

    Acer davidii

    tree
    Zones
    5–7
    Spacing
    20–40 ft
    Mature height
    30–50 ft
    Est. price
    $150–260

  • Kirilow Indigo

    Indigofera kirilowii

    shrub
    Zones
    5–7
    Spacing
    3–4 ft
    Mature height
    2–3 ft
    Est. price
    $24–55

  • Hardy Gloxinia

    Incarvillea

    perennial
    Zones
    5–7
    Spacing
    1.5–2 ft
    Mature height
    1.5–2 ft
    Est. price
    $24–55

  • Everlasting Pea

    Lathyrus

    vine
    Zones
    2–11
    Spacing
    1–3 ft
    Mature height
    1–9 ft
    Est. price
    $24–55

  • Deutschland Astilbe

    Astilbe japonica 'Deutschland'

    perennial
    Zones
    4–9
    Spacing
    1.5–2 ft
    Mature height
    1.5–2 ft
    Est. price
    $8–20

  • Cranesbill

    Geranium maculatum

    groundcover
    Zones
    3–11
    Spacing
    1–1.5 ft
    Mature height
    1.17–1.5 ft
    Est. price
    $8–20

  • Devil Maple

    Acer diabolicum

    tree
    Zones
    5–7
    Spacing
    20–40 ft
    Mature height
    20–30 ft
    Est. price
    $150–260

  • Gold Cone Juniper

    Juniperus communis 'Gold Cone'

    shrub
    Zones
    5–7
    Spacing
    1–2 ft
    Mature height
    3–5 ft
    Est. price
    $40–85

  • American Twinleaf

    Jeffersonia diphylla

    groundcover
    Zones
    5–7
    Spacing
    0.5–0.75 ft
    Mature height
    0.75–1.5 ft
    Est. price
    $8–20

  • Virginia Creeper

    Parthenocissus quinquefolia

    vine
    Zones
    3–10
    Spacing
    5–10 ft
    Mature height
    30–50 ft
    Est. price
    $24–55

  • Eastern Wood Fern

    Dryopteris marginalis

    perennial
    Zones
    3–8
    Spacing
    1.5–3 ft
    Mature height
    1.5–2 ft
    Est. price
    $8–20

  • Ajuga

    Ajuga reptans

    groundcover
    Zones
    3–10
    Spacing
    0.5–1 ft
    Mature height
    0.5–1 ft
    Est. price
    $8–20

  • Fullmoon Maple

    Acer japonicum

    tree
    Zones
    5–7
    Spacing
    15–30 ft
    Mature height
    15–30 ft
    Est. price
    $150–260

  • Chinese Neillia

    Neillia sinensis

    shrub
    Zones
    5–7
    Spacing
    0–6 ft
    Mature height
    5–6 ft
    Est. price
    $40–85

  • Dwarf Dandelion

    Krigia montana

    perennial
    Zones
    5–7
    Spacing
    0.5–1 ft
    Mature height
    0.67–1.67 ft
    Est. price
    $8–20

  • Baltimore Belle rose

    Rosa 'Belle de Baltimore'

    perennial
    Zones
    4–11
    Spacing
    6–10 ft
    Mature height
    8–13 ft
    Est. price
    $24–55
  • Bigleaf Hydrangea

    Hydrangea macrophylla

    shrub
    Zones
    6–11
    Spacing
    3.5 ft
    Mature height
    3–6 ft
    Est. price
    $40–85

  • Alpine Violet

    Cyclamen

    perennial
    Zones
    4–11
    Spacing
    0.67–1 ft
    Mature height
    0.33–1 ft
    Est. price
    $8–20

Does zone 6a need different plants from 6b?

Zone 6a has an average annual extreme minimum of -10 to -5°F; 6b is -5 to 0°F. Our library stores whole-zone ranges, so both halves share this list. Check the exact cultivar label for a borderline choice. Hardiness zones do not give your last spring frost, first autumn frost or planting date.

How to choose plants for a zone 6 garden

Start with your site rather than a long shopping list. Note how much direct sun the bed gets, whether water drains after rain, and its usable width. Then compare mature spread, not the size of the nursery pot. A plant can be rated for zone 6 and still be wrong for a wet corner or a narrow path.

From a plant shortlist to a spaced planting layout

  1. Match the light first

    Observe the bed through the day before using the light filter. A sunny front border and a shaded side yard can share a ZIP code but need different plants.

  2. Check soil and local restrictions

    Use the plant profile to check drainage and soil needs. Ask your local extension office or nursery about invasive plants and planting restrictions; this whole-zone list does not screen your address for them.

  3. Leave room for mature growth

    Compare spread with the distance to paths, walls and neighbouring plants. Check the cultivar: a compact selection and the species can need very different amounts of space.

For a simple example, a 12 × 4 ft bed has 48 square feet. A square grid with 2 ft between plant centres allows 4 square feet per position: 48 ÷ 4 = 12 positions. This is an area estimate, not a planting prescription. Edges, paths, shrubs and irregular shapes change the count; triangular spacing uses a different calculation.

Choose the actual plants first, then draw their mature spread on the usable bed area. Do not treat the nursery pot width as the final spacing.

Compare Northwind switchgrass size and spacing

A recorded garden rendering example

This August 18, 2026 test edited the photo below using a structured planting prompt. It shows how a reference list can guide a visual concept; it was not a zone-6 site survey or a run of the current ZIP-based planner.

Original backyard photo with lawn, fence and an unplanted strip
Original input photo
Historical AI test output with a red-leaf tree, rounded shrubs and purple flowering plants along the fence
Generated test output

Reference list supplied in the test prompt

  • 1 red Japanese maple
  • 6 rounded boxwood shrubs in a row
  • 8 lavender plants in front

These are requested counts, not plants verified in the output. The record does not contain a ZIP, sunlight measurement or bed dimensions. Species identity and quantities cannot be certified from the picture; use your own site conditions and a checked plan before buying.

Historical test, not a customer garden or a guarantee of current output.

See a planting idea in your own garden photo

Ready to move from a plant list to a visual concept? Upload a photo in AI Garden Design and enter your US ZIP, sunlight and dimensions. The tool filters its plant palette by zone and light and provides mature-size guidance and reference quantities. It does not place the three examples above into your photo automatically, and it does not produce a surveyed planting plan.

Sign-in and credits are required to generate. Confirm soil, drainage, final spacing and quantities on site before purchasing.

Try AI Garden DesignAI Backyard Design for enclosed yards

Questions before choosing zone 6 plants

Are plants for zone 6a and zone 6b interchangeable?
The library uses integer zones, so this page cannot resolve a plant’s half-zone cold limit. Confirm the exact cultivar rating if it is near its cold limit, and consider shelter, drainage and exposure at your site.
Which zone 6 plants come back each year?
Use the dedicated zone 6 perennials page for the narrower list and its classification limits. This page also includes shrubs, trees and grasses, so it is not a list of herbaceous perennials alone.
Can I use the same list for pots?
Do not assume an in-ground hardiness rating applies unchanged to an exposed pot. Ask a local nursery about the plant, container and overwintering conditions before buying.
Check your address on the USDA map

Neighbouring zones

Zone 5 — one step colderZone 7 — one step milder

Where these numbers come from

The ZIP lookup uses PRISM Climate Group’s 2023 hardiness data (40,502 ZIP records). The catalogue uses stored NC State and Missouri Botanical Garden records. A versioned public extract and filtering method are linked below; upstream lifecycle and plant-type tags can conflict.

Card prices are internal container-size budgeting estimates, not current nursery quotes or stock checks. Verify lifecycle, cultivar, local restrictions, soil, drainage and dimensions. This is not the official USDA map.