Generally — Most Areas
daikon radish (zones 2-11) partially overlaps with Oregon (4b-9b). It can grow in zones 4-9 within the state.
Your yard isn't the whole zone.
Oregon spans zones 4b-9b, but your yard has its own microclimate — slope, trees, and low spots shift frost and sun across a single parcel. Enter your address and we'll score daikon radish against your land's actual soil, sun, and frost.
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Zone Comparison
Daikon Radish Needs
- USDA Zones: 2-11
- Soil pH: 4.3 - 8.3
- Sun: Full Sun
- Drainage: well (dry spells)
- Frost-Free Days: 50+
Oregon Has
- USDA Zones: 4b-9b
- Last Frost: Mar 1 - Jun 15
- First Frost: Sep 1 - Nov 15
- Annual Rainfall: 8-90 inches
- Common Soils: Volcanic, Silt loam (Willamette), Sandy loam
Plant Zone Range (zones 2-11)
Preferred Soil pH
Plant data: USDA PLANTS Database / plant_species_v5.csv. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.
When to Plant Daikon Radish in Oregon
The frost window
Across Oregon, the last spring frost clears between Mar 1 and Jun 15, and the first fall frost lands between Sep 1 and Nov 15 (NOAA Climate Normals 1991-2020). Counting from the latest last frost to the earliest first frost, that's a 78-day window you can count on — up to 259 days on a mild site in a kind year.
Frost tenderness
Daikon Radish is frost-tender — its listed minimum temperature is 50°F (USDA PLANTS Database) — so set plants out after the last frost has cleared your local site, not the state's earliest date.
Days to maturity vs. the window
At 60 days to maturity (USDA PLANTS Database), one crop fits Oregon's 78-day dependable window with 18 days of margin — plant at the front of the window to keep that cushion.
Frost window: NOAA Climate Normals 1991-2020. Plant timing fields: USDA PLANTS Database. Your site's own frost dates can run earlier or later than the state range — a parcel report pins them down.
Growing Season Fit
Zone compatibility says you can survive winter here. Whether the growing season is long enough — and warm enough — is a different question.
Frost-free days
Daikon Radish wants 50+ frost-free days; a typical Oregon site sees ~170 (NOAA Climate Normals). That leaves comfortable headroom for succession planting.
Growing degree days
Daikon Radish needs ~1000 GDD (base 50°F) to ripen. The state median runs ~2700 GDD (USDA NRCS county aggregates), so Oregon's typical season clears that easily.
Climate aggregates derive from USDA NRCS county-level hardiness data + Cornell CALS Extension GDD-by-region tables + MSU Extension chill-hours-by-zone (1991-2020 NOAA Climate Normals baseline).
Soil + Drainage Fit
Daikon Radish likes near-neutral soil (pH 4.3-8.3). That's the common-ground band across Oregon's volcanic and silt loam (willamette) — a soil test confirms it for your site. Drainage matters: this plant wants well (dry spells). If your Oregon site is heavier clay or sits in a low spot, raised beds or amendment with compost solve it.
Plant pH and drainage requirements from USDA PLANTS Database. Oregon soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.
Daikon Radish in Oregon — Quick Answer
- Verdict: Generally — Most Areas
- Plant Zones: 2-11 (USDA PLANTS Database)
- State Zones: 4b-9b (USDA ARS PHZM 2023)
- Growing Season: Mar 1 - Jun 15 to Sep 1 - Nov 15 (NOAA Climate Normals)
- Days to Maturity: 60 days
What Else to Consider
Zone compatibility tells you about winter cold survival — but Oregon growers also need to think about:
West side: excessive rain and overcast skies reduce sun for warm-season crops
Map your sun honestly — a south-facing bed against a light wall recovers a surprising amount of the light the clouds take.
East side: arid conditions (8-15 inches rainfall) require irrigation
East of the Cascades, drip irrigation is infrastructure, not an accessory — plan it before the first planting.
Slug pressure is extreme in western Oregon
Evening patrols, iron-phosphate baits, and dry mulch edges knock slugs back — your extension guide covers the full toolkit.
Mountain areas have very short seasons (60-90 frost-free days)
At 60-90 frost-free days, season extension is the difference between a garden and a gamble — a high tunnel changes the math.
Pollinator + Wildlife Value
Daikon Radish draws pollinators (moderate value, USDA PLANTS Database). Planting it near vegetable beds can lift fruit set on neighboring crops.
Oregon Cooperative Extension
For Oregon-specific cultivar recommendations, planting calendars, and pest pressure for daikon radish, the canonical source is OSU Extension Service. Their fact sheets carry the local trial data we can't generalize across 50 states.
Common Questions About Growing Daikon Radish in Oregon
When can I plant Daikon Radish in Oregon?
Oregon's last spring frost clears between Mar 1 and Jun 15, and the first fall frost lands between Sep 1 and Nov 15 (NOAA Climate Normals 1991-2020). Daikon Radish is frost-tender — its listed minimum temperature is 50°F (USDA PLANTS Database) — so wait until the last frost has cleared your specific site before planting out.
Can Daikon Radish mature before first frost in Oregon?
Yes — Daikon Radish matures in 60 days (USDA PLANTS Database), and Oregon's dependable frost-free window runs 78 days (NOAA Climate Normals 1991-2020), leaving 18 days of margin. Plant just after last frost and it ripens ahead of the first fall frost.
What hardiness zone is Daikon Radish grown in across Oregon?
Oregon spans USDA hardiness zones 4b-9b (USDA ARS PHZM 2023). Daikon Radish carries a range of zones 2-11, so the overlap zones are where outdoor growing is most reliable.
How many frost-free days does a typical Oregon site have?
A typical Oregon site sees ~170 frost-free days per year (derived from NOAA Climate Normals 1991-2020). Daikon Radish needs 50+ frost-free days, so check whether your local microclimate runs above or below the state average before settling on a planting date.
How should I amend the soil for Daikon Radish in Oregon?
Daikon Radish prefers pH 4.3-8.3 and well (dry spells) drainage (USDA PLANTS Database). That sits in the common-ground band across Oregon soils — a 30-minute soil test from a local Extension lab confirms it for your specific site.
Will Daikon Radish actually grow on my specific land in Oregon?
State-level zone + climate data is a sketch. A Growable Ground parcel report scores daikon radish against your address's exact soil pH, drainage, sun, and frost-date data drawn from USDA SSURGO, NOAA, and PRISM — not state averages.
Check your specific parcel in Oregon
State-level data is a sketch. Your Growable Ground report scores daikon radish against your parcel's exact soil, sun, drainage, and frost data — not zone averages.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
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