Weed, California, sits in USDA hardiness zone 7b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
These conditions suit cabbage, prickly pear, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Weed, no two yards are alike.
A low spot, a south-facing slope, or a stand of trees moves the frost date and sun across a single Weed lot. Enter your address and we'll score 1,086 plants against your land's actual soil, sun, and frost.
We read public map data around Weed — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Weed — the short answer
Weed, California: USDA zone 7b, about 198 days between hard freezes, across 3K acres of city.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~198
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 3K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are this town’s own 28°F normals: light frosts run a few weeks past them, and tender transplants usually wait 2–3 weeks after the last hard freeze.
Hardiness Zone Range
Zone 7b is Weed's average, not your lot's — a low corner or a tree line moves it. Against Weed's 198-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Weed
Each reading below is measured for Weed itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWeed runs about 198 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredWeed sits in USDA hardiness zone 7b.
The zone sets which perennials, shrubs, and fruit trees live through an average winter here — a plant rated for a colder zone is a safe bet, one rated warmer needs winter protection or gets treated as an annual.
Match perennials and fruit to the zone before you buy, so nothing you plant is a gamble against the cold.
USDA PHZM 2023
The kind of country Weed is in
Weed sits in the Cascades — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Weed's own centroid, and it is not what its county reads: Siskiyou County is mostly Klamath Mountains/California High North Coast Range. The wider page above you is answering a different question about different ground.
What Grows in Weed
Every plant below cleared Weed's own zone 7b and its 198-day season. Each card opens that plant's California profile. How we score.
Is it too late to plant in Weed?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Mar 18; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 30 — long-season crops need about 90 days of runway, quick greens only 30. Late in the year the fall bench takes over — quick greens, radishes, and garlic that repays you next summer.
What's on the federal record near Weed
Closest first, within ~10 miles of Weed. Listing isn't leaking, and distance isn't exposure.
- CITY OF WEED MAINTENANCE YARDBrownfields · 450 ft
- SOLANO'S, INC.Brownfields · 500 ft
- SISKIYOU GARDENS APTSBrownfields · 1700 ft
- BP WEST COAST PRODUCTS LLC 11242Brownfields · 0.5 mi
- CONOCOPHILLIPS SITE #2611242Brownfields · 0.5 mi
- PACIFIC BELLBrownfields · 0.6 mi
- DOLLAR GENERAL #16124Brownfields · 0.6 mi
- ERICKSON SHELLBrownfields · 0.7 mi
- Erickson ShellUnderground Storage Tanks · 0.7 mi
- CHEVRON 307155Brownfields · 0.7 mi
- WEED CHEVRONBrownfields · 0.7 mi
- CHEVRON 93476Brownfields · 0.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Weed's center, not your beds. Run your own address for what's upwind of you specifically.
Environmental Intelligence
The counts behind that headline — every source type on the record near Weed.
Sources Checked
within ~10 miles of Weed
Severity Distribution
within ~10 miles of Weed
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Weed, two things run higher than the national average within ~10 miles of Weed — Mining (31 sites) and Brownfields (98 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
Brownfields: Brownfield sites are former commercial or industrial properties where legacy soil contamination (heavy metals, PAHs, petroleum compounds) may persist.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Check EPA brownfield remediation status — many sites have completed cleanup with institutional controls.
Check your specific parcel in Weed
Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,086 plant recommendations.
25+ data sources read at your address, not the Weed average
Your land is one point inside Weed
Everything above resolves to Weed as a whole — one PHZM band and one 28°F frost record, read across 3K acres. Your parcel is one point inside that footprint. Slope, tree cover, a low spot that pools cold air, and what is in the soil are all resolved at the address, and none of them are visible at city scale. That is the honest boundary of this page, and the reason the next step is a reading of your own ground rather than a better local average.
Your Lot vs the Weed Average
Weed Average
- ●USDA Zones 7b, averaged across Weed
- ●One soil character for all of Weed
- ●Frost dates read at Weed's scale: Apr 15 to Oct 30
YOUR Parcel
- ✓Your exact zone, not Weed's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Weed
Pull a site-specific report for your exact address in Weed, California — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Weed averages can't show:
We read public map data around Weed — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Weed average
How we know this about Weed
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Weed’s own record; boundaries and acreage from US Census TIGER/Line 2025; the contamination records from the federal sources named in their beats above. Soil is not read at city grain anywhere on this page — there is no city-resolution survey in our data, which is why you will find no soil grid here rather than a statewide one wearing a local label. The resolution ledger below names every figure this page inherited.
Common questions about Weed
When does frost risk typically end in Weed?
The last hard freeze (28°F) in Weed typically lands around Apr 15, per NOAA 1991–2020 climate normals — earlier than the light-frost dates most charts quote. That marks the hard freeze, not the last light frost — lighter frosts keep biting past it, which is why tender transplants here wait until about May 6.
When is the first frost in Weed?
The first hard freeze (28°F) in Weed typically arrives around Oct 30, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 16, so the watching starts about Sep 30 — about 198 days after the spring freeze cleared.
How long is the growing season in Weed?
Measured between 28°F hard freezes, Weed sees about 198 frost-free days — roughly Apr 15 through Oct 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 6 to Oct 16, about 163 days.
Is the soil safe to grow vegetables in Weed?
The federal record around Weed is a meaningful one — 162 documented sites, mostly Brownfields entries (98), the nearest Brownfields record under a tenth of a mile out — so a soil test before new food beds is a sensible precaution here, not a reason to hold back from growing. Remember that proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what sits where.
How do I protect my plants from frost in Weed?
From about Sep 30 the job here turns from planting to protecting — the last start even a 30-day crop can finish. As the season closes around the first 28°F hard freeze near Oct 30 (NOAA 1991–2020 climate normals), three moves buy time: row cover or an old sheet over tender plants on still, clear nights; water the soil the afternoon before a freeze, so it holds warmth overnight; and harvest tomatoes, peppers and basil before Oct 30. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Weed's scale — its 7b band and its 198-day season. Your yard writes its own version of Weed's numbers: we read soil, sun, drainage and frost at your exact address. Try it for 14 days — no card required.
What this page reads at Weed’s own scale
6 of the readings below were taken at Weed's own scale — its own ~198-day season between 28°F freezes, the 3,083 acres it covers and 162 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Weed's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Weed's own 28°F hard-freeze dates, about Apr 15 and Oct 30 and the ~198-day span between themNOAA 1991–2020 Climate Normals
- 162 documented contamination sites on the federal record near Weed, the closest Brownfields record under a tenth of a mile out from the town centreFederal environmental registers
- Weed's boundary and the 3,083 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~198-day seasonGrowable Ground crop-matching engine
- Weed sits in the Cascades — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Weed's 3,083 acres read through its county's SSURGO summaryfrom Siskiyou County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Siskiyou County
- The growing challenges every California grower plans around — written at state scale, so they stay on the state guidefrom California
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Siskiyou County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Weed's 3,083 acreswhy one lot differs from the next →
- Which side of Weed you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,083 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record under a tenth of a mile out, measured from the town centrehow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — measured at your address, and averaged away by any Weed-wide figureread your own land →
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