Wholesale Grower
Dealer
Blackburn's Greenhouse
N9371 County Road Aa, Portage, WI 53901
State-licensed as of 2026-08-04
Plant Nurseries & Garden Centers in Portage, WI
Where to buy plants here
Where to buy plants in Portage, WI: big-box vs. independent
Portage, WI has 2 independent nurseries and 3 wholesale growers in this directory's own classification. Independent, big-box, and grower are separate business-structure categories on file for each listing, not a ranking of one over another.
Licence record on file with this directory: 2 of 2 independent nurseries, 0 of 0 big-box locations. WI is one of the 11 states this directory holds a nursery-dealer licence registry for; a listing with no badge may still be licensed elsewhere, this directory simply has no matching registry record for it as of that registry's own sync date.
Independent, named
Wholesale growers, named
Growing conditions
- USDA hardiness zone
- 5a
- Avg. minimum winter temp
- -20°F
- Median frost dates
- First ~Oct 10 · Last ~Apr 28
Frost dates: NOAA 1991–2020 Climate Normals, nearest station (PORTAGE WWTP, WI US, 3.5 km away) .
What's plantable right now
Nothing in our crop table has an open planting window for this ZIP right now, check back soon.
Planting windows and crop timing here are computed from USDA/NOAA climate data and the university extension sources cited below, not a site visit or soil test. Treat this as a starting point: local conditions vary, and a local nursery or extension office can advise on your exact site. See our full Disclaimer.
No mapped coordinates yet for any listing in Portage.
Independent
Dealer
Columbia County Land and Water Conservation Dept
112 E Edgewater St, Portage, WI 53901
State-licensed as of 2026-08-04
Wholesale Grower
Dealer
Dixon Shoreline/Landscaping LLC
N6780 County Road U, Portage, WI 53901
State-licensed as of 2026-08-04
Independent
Dealer
Edgewater Home & Garden, LLC
PO Box 757, Portage, WI 53901
State-licensed as of 2026-08-04
Wholesale Grower
Dealer
Link's Greenhouse, Inc.
N9905 Link Rd, Portage, WI 53901
State-licensed as of 2026-08-04
Planting calendar
The full year, at a glance
Number of crops in our table with an open planting window each month, computed from this ZIP's median frost dates.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Start indoors | 1 | – | 12 | – | – | – | – | – | – | – | – | – |
| Direct-sow | – | – | – | 9 | 9 | 2 | 1 | 1 | 1 | – | – | – |
| Transplant | – | – | – | 10 | 10 | – | – | – | – | – | – | – |
| Fall planting | – | – | – | – | – | – | – | 11 | – | – | – | – |
Portage, WI has a population of 10,236, a median household income of $64,722, and a 58.6% owner-occupied housing rate. Source: US Census Bureau, American Community Survey (2020-2024).
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