Conditional — Some Areas
Egyptian walking onion (zones 3-9) has limited zone overlap with Missouri (5b-7a). Only zones 5-7 in the state are suitable.
Your yard isn't the whole zone.
Missouri spans zones 5b-7a, 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 egyptian walking onion against your land's actual soil, sun, and frost.
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Zone Comparison
Egyptian Walking Onion Needs
- USDA Zones: 3-9
- Soil pH: 4.5 - 7.5
- Sun: Full Sun
- Drainage: well (dry spells)
- Frost-Free Days: 120+
Missouri Has
- USDA Zones: 5b-7a
- Last Frost: Apr 5 - Apr 25
- First Frost: Oct 5 - Oct 30
- Annual Rainfall: 34-50 inches
- Common Soils: Silt loam, Clay loam, Loess
Plant Zone Range (zones 3-9)
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 Egyptian Walking Onion in Missouri
The frost window
Across Missouri, the last spring frost clears between Apr 5 and Apr 25, and the first fall frost lands between Oct 5 and Oct 30 (NOAA Climate Normals 1991-2020). Counting from the latest last frost to the earliest first frost, that's a 163-day window you can count on — up to 208 days on a mild site in a kind year.
Frost tenderness
Egyptian Walking Onion is frost-tender — its listed minimum temperature is 42.8°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 240 days to maturity (USDA PLANTS Database), even Missouri's kindest 208-day season runs short — challenging without season extension. An indoor start plus row cover on both shoulders of the season closes the gap.
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
Egyptian Walking Onion wants 120+ frost-free days; a typical Missouri site sees ~190 (NOAA Climate Normals). That leaves comfortable headroom for succession planting.
Growing degree days
Egyptian Walking Onion needs ~1200 GDD (base 50°F) to ripen. The state median runs ~3850 GDD (USDA NRCS county aggregates), so Missouri'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
Egyptian Walking Onion likes near-neutral soil (pH 4.5-7.5). That's the common-ground band across Missouri's silt loam and clay loam — a soil test confirms it for your site. Drainage matters: this plant wants well (dry spells). If your Missouri 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. Missouri soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.
Egyptian Walking Onion in Missouri — Quick Answer
- Verdict: Conditional — Some Areas
- Plant Zones: 3-9 (USDA PLANTS Database)
- State Zones: 5b-7a (USDA ARS PHZM 2023)
- Growing Season: Apr 5 - Apr 25 to Oct 5 - Oct 30 (NOAA Climate Normals)
- Days to Maturity: 240 days
What Else to Consider
Zone compatibility tells you about winter cold survival — but Missouri growers also need to think about:
Highly variable weather with late frosts and early heat
Let your local frost normals call the plantings — Missouri springs punish the calendar-planters and reward the patient.
Heavy clay soils in many regions
Raised beds solve clay drainage the first weekend — and yearly compost turns the ground under them into loam.
Ozark soils are thin and rocky
One soil test shows what thin Ozark ground actually holds — then build up with compost or beds where the depth runs out.
Pollinator + Wildlife Value
Egyptian Walking Onion draws pollinators (moderate value, USDA PLANTS Database). Planting it near vegetable beds can lift fruit set on neighboring crops.
Missouri Cooperative Extension
For Missouri-specific cultivar recommendations, planting calendars, and pest pressure for egyptian walking onion, the canonical source is MU Extension. Their fact sheets carry the local trial data we can't generalize across 50 states.
Common Questions About Growing Egyptian Walking Onion in Missouri
When can I plant Egyptian Walking Onion in Missouri?
Missouri's last spring frost clears between Apr 5 and Apr 25, and the first fall frost lands between Oct 5 and Oct 30 (NOAA Climate Normals 1991-2020). Egyptian Walking Onion is frost-tender — its listed minimum temperature is 42.8°F (USDA PLANTS Database) — so wait until the last frost has cleared your specific site before planting out.
Can Egyptian Walking Onion mature before first frost in Missouri?
Egyptian Walking Onion needs 240 days to mature (USDA PLANTS Database), and even Missouri's longest typical season runs 208 days (NOAA Climate Normals 1991-2020) — challenging without season extension. An indoor start plus row cover on both season shoulders closes the gap.
What hardiness zone is Egyptian Walking Onion grown in across Missouri?
Missouri spans USDA hardiness zones 5b-7a (USDA ARS PHZM 2023). Egyptian Walking Onion carries a range of zones 3-9, so the overlap zones are where outdoor growing is most reliable.
How many frost-free days does a typical Missouri site have?
A typical Missouri site sees ~190 frost-free days per year (derived from NOAA Climate Normals 1991-2020). Egyptian Walking Onion needs 120+ 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 Egyptian Walking Onion in Missouri?
Egyptian Walking Onion prefers pH 4.5-7.5 and well (dry spells) drainage (USDA PLANTS Database). That sits in the common-ground band across Missouri soils — a 30-minute soil test from a local Extension lab confirms it for your specific site.
Will Egyptian Walking Onion actually grow on my specific land in Missouri?
State-level zone + climate data is a sketch. A Growable Ground parcel report scores egyptian walking onion 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 Missouri
State-level data is a sketch. Your Growable Ground report scores egyptian walking onion against your parcel's exact soil, sun, drainage, and frost data — not zone averages.
Three things about your exact spot that zone averages miss:
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