Independent
Maynard Greenhouses
4.8 ★ (24 Google reviews) as of 2026-08-06
87 Ingham Hill Rd, Old Saybrook, CT 06475
Licence: not checked, no CT registry held
Plant Nurseries & Garden Centers in Old Saybrook, CT
Where to buy plants here
Where to buy plants in Old Saybrook, CT: big-box vs. independent
Old Saybrook, CT has 4 independent nurseries and 2 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
Plus 1 more in the listings below.
Big-box, named
Growing conditions
- USDA hardiness zone
- 7a
- Avg. minimum winter temp
- 0°F
- Median frost dates
- First ~Nov 17 · Last ~Apr 6
Frost dates: NOAA 1991–2020 Climate Normals, nearest station (ORIENT PT SP, NY US, 20.3 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.
Map data © OpenStreetMap contributors.
Independent
Old Saybrook Garden Center
5.0 ★ (3 Google reviews) as of 2026-08-06
356 Middlesex Turnpike, Old Saybrook, CT 06475
Licence: not checked, no CT registry held
Independent
Send Plants
2.0 ★ (1 Google reviews) as of 2026-08-06
143 Mill Rock Rd E, Old Saybrook, CT 06475
Licence: not checked, no CT registry held
Independent
Smartyplants Design
12 Coulter St, Old Saybrook, CT 06475
Licence: not checked, no CT registry held
Big Box
Big Box
Tractor Supply Co.
4.5 ★ (228 Google reviews) as of 2026-08-06
401 Middlesex Ave, Old Saybrook, CT 06475
Licence: not checked, no CT registry held
Big Box
Big Box
Walmart Garden Center
665 Boston Post Rd, Old Saybrook, CT 06475
Licence: not checked, no CT registry held
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 | 8 | – | – | – | – | – | – | – | – | – | 1 |
| Direct-sow | – | – | 17 | 14 | 2 | 1 | 1 | 1 | – | – | – | – |
| Transplant | – | – | 5 | 16 | – | – | – | – | – | – | – | – |
| Fall planting | – | – | – | – | – | – | – | – | – | 11 | – | – |
Keep looking nearby
Nurseries near Old Saybrook
- East Haddam, CT (10.5 mi)
- Guilford, CT (17.1 mi)
- Colchester, CT (18.4 mi)
- Ledyard, CT (21.0 mi)
- Norwich, CT (21.8 mi)
- Middletown, CT (23.1 mi)
- Wallingford, CT (25.1 mi)
- East Haven, CT (25.5 mi)
- North Haven, CT (26.0 mi)
- Cromwell, CT (26.5 mi)
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