City guide · Zone 6b
What to plant in Columbus, Ohio
A full-sun bed in Columbus: Shrub rose 'Knock Out', Feather reed grass 'Karl Foerster', English lavender 'Hidcote', Bearded iris, Cheddar pinks 'Firewitch'. Zone 6b, last frost around Apr 20.
Humid continental climate with a broad plant palette. Heavy clay soil is common.
Preview: plant data is awaiting horticulturist review. A professional horticulturist hasn't reviewed our plant table yet. Lists still follow fixed rules for zone, sun, pets, deer and invasive status.
Columbus, Ohio at a glance
- Hardiness zone (2023 USDA)
- 6b (ZIP 43215)
- Typical last spring frost
- Apr 20
- Typical first fall frost
- Oct 20
- Spring planting window
- early May to early June
- Fall planting window
- mid-September to mid-October
- Annual rainfall (approx.)
- 40 in
Frost dates are typical metro values, not forecasts. Humid summers and wide temperature swings matter alongside winter cold; most plants hardy here also take the heat. Our lists for Columbus use the rules for the Midwest.
Zone: USDA Plant Hardiness Zone Map, 2023 (USDA Agricultural Research Service; data by the PRISM Climate Group, Oregon State University). ZIP code to state data: GeoNames (geonames.org), CC BY 4.0.
A full-sun bed in Columbus
6 or more hours of direct summer sun, 12 × 6 ft.
12 × 6 ft · Zone 6b · 6+ hours of sun · Cottage
Rosa 'Radrazz'
Structure · Back of bed · 3-gallon pot · 3 ft apart · grows 3–4 ft tall · May–Oct
Can't find it? Use Ninebark 'Summer Wine' or Shrubby cinquefoil (potentilla) 'Goldfinger'.
Calamagrostis × acutiflora 'Karl Foerster'
Grass · Back of bed · 1-gallon pot · 2 ft apart · grows 4–5 ft tall · Jun–Jul
Can't find it? Use Dwarf fountain grass 'Hameln' or Northern sea oats.
Lavandula angustifolia 'Hidcote'
Filler · Middle of bed · 1-gallon pot · 1.5 ft apart · grows 1–2 ft tall · Jun–Jul
Can't find it? Use Hardy geranium 'Rozanne' or Garden peony 'Sarah Bernhardt'.
Bearded iris
× 7
Iris germanica
Filler · Middle of bed · 1-gallon pot · 1.5 ft apart · grows 2–3 ft tall · Apr–Jun
Can't find it? Use Hardy geranium 'Rozanne' or Bee balm.
Dianthus gratianopolitanus 'Firewitch'
Edge · Edge of bed · quart pot · 0.8 ft apart · grows 6–9 in tall · May–Jun
Can't find it? Use Angelina stonecrop 'Angelina' or Two-row stonecrop 'Dragon's Blood'.
Kinds
5
Plants
33
Coverage
85%
Mulch
9 bags
Mulch: 0.67 cu yd at 3 in deep (9 bags of 2 cu ft). Plants cover about 85% of the 72 sq ft bed when mature.
A part-shade bed in Columbus
2 to 4 hours of direct summer sun, 12 × 6 ft.
12 × 6 ft · Zone 6b · 2–4 hours of sun · Classic
Buxus sinica var. insularis 'Wintergreen'
Structure · Back of bed · 3-gallon pot · 3.5 ft apart · grows 2–4 ft tall · Foliage plant
Can't find it? Use Dwarf boxwood 'Green Gem' or Reblooming azalea 'Encore Autumn Amethyst'.
Athyrium niponicum 'Pictum'
Grass · Middle of bed · 1-gallon pot · 1.3 ft apart · grows 1–1.5 ft tall · Foliage plant
Can't find it? Use Autumn fern or Japanese forest grass 'Aureola'.
Lenten rose
× 7
Helleborus × hybridus
Filler · Middle of bed · 1-gallon pot · 1.5 ft apart · grows 1–1.5 ft tall · Feb–Apr
Can't find it? Use Hairy alumroot 'Caramel' or Coral bells 'Palace Purple'.
Geranium 'Gerwat' (Rozanne)
Filler · Middle of bed · 1-gallon pot · 2 ft apart · grows 1.5–2 ft tall · Jun–Oct
Can't find it? Use Hairy alumroot 'Caramel' or Coral bells 'Palace Purple'.
Carex morrowii 'Ice Dance'
Edge · Edge of bed · 1-gallon pot · 1.3 ft apart · grows 0.75–1 ft tall · Foliage plant
Can't find it? Use Japanese sedge 'Evergold' or Hairy alumroot 'Caramel'.
Kinds
5
Plants
28
Coverage
90%
Mulch
9 bags
Mulch: 0.67 cu yd at 3 in deep (9 bags of 2 cu ft). Plants cover about 90% of the 72 sq ft bed when mature.
A shady bed in Columbus
Under 2 hours of direct summer sun, 12 × 6 ft.
12 × 6 ft · Zone 6b · Under 2 hours of sun · Classic
Taxus × media 'Densiformis'
Structure · Back of bed · 3-gallon pot · 4.5 ft apart · grows 3–4 ft tall · Foliage plant
Can't find it? Use Sweetbox.
Carex oshimensis 'Evergold'
Grass · Front of bed · 1-gallon pot · 1 ft apart · grows 0.75–1 ft tall · Foliage plant
Can't find it? Use Japanese painted fern 'Pictum' or Japanese forest grass 'Aureola'.
Lenten rose
× 7
Helleborus × hybridus
Filler · Middle of bed · 1-gallon pot · 1.5 ft apart · grows 1–1.5 ft tall · Feb–Apr
Can't find it? Use Astilbe 'Fanal' or Siberian bugloss 'Jack Frost'.
Filler · Middle of bed · 1-gallon pot · 2 ft apart · grows 1–1.5 ft tall · Jul–Aug
Can't find it? Use Astilbe 'Fanal' or Siberian bugloss 'Jack Frost'.
Heuchera villosa 'Caramel'
Edge · Edge of bed · 1-gallon pot · 1.5 ft apart · grows 1–1.5 ft tall · Aug–Sep
Can't find it? Use Coral bells 'Palace Purple' or Variegated lilyturf 'Variegata' (invasive in North Carolina: don't plant it there).
Kinds
5
Plants
30
Coverage
86%
Mulch
9 bags
Mulch: 0.67 cu yd at 3 in deep (9 bags of 2 cu ft). Plants cover about 86% of the 72 sq ft bed when mature.
Guides for zone 6
- Dog-safe plants for a full-sun bed in zone 6
- Deer-resistant plants for a full-sun bed in zone 6
- Deer-resistant plants for a part-shade bed in zone 6
- Low-water plants for a full-sun bed in zone 6
- What to plant in a full-sun bed in zone 6
- What to plant in a part-shade bed in zone 6
- What to plant in a shady bed in zone 6
- Cottage garden plants for a sunny bed in zone 6
Questions and answers
- What hardiness zone is Columbus, Ohio in?
- Central Columbus (ZIP 43215) is in zone 6b on the 2023 USDA map: the coldest night of an average winter falls between -5°F and 0°F. Suburbs can be half a zone colder.
- When is the last frost in Columbus?
- Typically around Apr 20 in spring and Oct 20 in fall. These are typical dates; any one year can be two weeks earlier or later.
- When should I plant shrubs and perennials in Columbus?
- In spring, early May to early June; in fall, mid-September to mid-October. Fall planting gives roots a cool, moist season to settle before summer.
- How many plants do I need for a 12 × 6 ft bed in Columbus?
- Our full-sun bed list for Columbus uses 33 plants of 5 kinds, plus 9 bags of mulch.
How this page was made
This page was generated from FloraVista's plant table by fixed rules: the rules engine composed each list for the city's 2023 USDA zone, its region's summers and its state's invasive lists. The frost dates and rainfall are approximate metro values. No person or chat model chose these plants, and no named expert has reviewed this page.
Data status: the plant table is awaiting review by a horticulturist. Check each plant with a local nursery or extension office before you buy.
Sources
- Missouri Botanical Garden Plant Finder, state extension services and the USDA PLANTS database (zones, size, sun, water, bloom, native range)
- ASPCA toxic and non-toxic plant lists (dog and cat toxicity)
- Rutgers NJAES and regional extension deer-resistance ratings
- State noxious-weed and invasive-plant lists and the Invasive Plant Atlas of the US
- Typical US garden-centre listings (pot size and price band)
- USDA Plant Hardiness Zone Map, 2023. Agricultural Research Service, U.S. Department of Agriculture. Data by the PRISM Climate Group, Oregon State University.
- ZIP code to state data: GeoNames (geonames.org), licensed under CC BY 4.0.
Generated . How FloraVista chooses plants
