Where to buy plants here
Union, NJ has 2 independent nurseries and 3 big-box garden centers 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.
Independent, named
Growing conditions
Frost dates: NOAA 1991–2020 Climate Normals, nearest station (CRANFORD, NJ US, 5.6 km away) .
What's plantable right now
Based on this ZIP's median frost dates, last frost ~Apr 11, first frost ~Oct 31.
Planting-window sources: , Clemson Cooperative Extension Home & Garden Information Center , Clemson Cooperative Extension Home & Garden Information Center , Colorado State University Extension , University of Missouri Extension , NC State Extension , Purdue Extension (Dept. of Horticulture and Landscape Architecture) , Virginia Cooperative Extension, Virginia Tech and Virginia State University .
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.
Map data © OpenStreetMap contributors.
4.4 ★ (9 Google reviews) as of 2026-08-06
930 Springfield Rd, Union, NJ 07083
Licence: not checked, no NJ registry held
3.0 ★ (4 Google reviews) as of 2026-08-06
1439 Stuyvesant Ave., Union, NJ 07083
Licence: not checked, no NJ registry held
4.3 ★ (203 Google reviews) as of 2026-08-06
1721 Morris Ave, Union, NJ 07083
Licence: not checked, no NJ registry held
4.8 ★ (48 Google reviews) as of 2026-08-06
1871 Vauxhall Rd, Union, NJ 07083
Licence: not checked, no NJ registry held
5.0 ★ (1 Google reviews) as of 2026-08-06
900 Springfield Rd, Union, NJ 07083
Licence: not checked, no NJ registry held
Planting calendar
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 | 8 | – | – | – | – | – | – | – | – | – | 1 |
| Direct-sow | – | – | 17 | 12 | 2 | 1 | 1 | 1 | – | – | – | – |
| Transplant | – | – | 5 | 15 | – | – | – | – | – | – | – | – |
| Fall planting | – | – | – | – | – | – | – | – | 11 | – | – | – |
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