Kirby Plants
7234 Oak Ridge Highway, Knoxville, TN 37931
Business information on this page (including hours, address, phone number, rating, and licence status) is provided for reference only. Some fields carry their own as-of date; others may be older than they appear. Contact the business directly to confirm current information before visiting or purchasing. See our full Disclaimer.
4.8 ★ (252 Google reviews) · as of 2026-08-06
State-licensed in TN as of 2026-08-04 , licence #4548, source registry · how we verify this
Growing conditions
- USDA hardiness zone
- 7b
- Avg. minimum winter temp
- 5°F
- Median frost dates
- First ~Nov 4 · Last ~Mar 31
Frost dates: NOAA 1991–2020 Climate Normals, nearest station (OAK RIDGE ASOS, TN US, 12.0 km away) .
What's plantable right now
Based on this ZIP's median frost dates, last frost ~Mar 31, first frost ~Nov 4.
Plant for fall now
- Beets · 55–65 days to maturity
- Broccoli · 65–80 days to maturity
- Brussels Sprouts · 40–50 days to maturity
- Cabbage · 70–85 days to maturity
- Collards · 32–72 days to maturity
- Kale · 50–70 days to maturity
- Kohlrabi · 50–65 days to maturity
- Mustard Greens · 25–50 days to maturity
- Radish · 20–35 days to maturity
- Spinach · 40–60 days to maturity
- Turnip · 50–60 days to maturity
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.
Nearby nurseries
- Bamboo of Knoxville Knoxville, TN 2.1 mi away
- Thress Nursery Gardens Knoxville, TN 2.6 mi away
- Powell Power Equipment, Inc. Powell, TN 2.9 mi away
- Walmart Garden Center Knoxville, TN 3.2 mi away
- Garden Center at The Home Depot Knoxville, TN 3.5 mi away
- Lowe's Garden Center Knoxville, TN 3.7 mi away
Frequently asked questions
- What type of business is Kirby Plants?
- Kirby Plants is classified as a dealer in Knoxville, TN.
- Is Kirby Plants state-licensed?
- Yes, Kirby Plants appears in TN's state nursery/dealer licensing registry, as of 2026-08-04 (license #4548).
- What USDA growing zone is Kirby Plants in?
- Kirby Plants (ZIP 37931) is in USDA hardiness zone 7b, with an average minimum winter temperature of 5°F.
- What's plantable near Kirby Plants right now?
- Based on ZIP 37931's frost dates, this is a good time to start 11 fall crops. See the full list above.
Source: State-licensed & Google Business Profile. Last checked 2026-08-06. See something wrong? Request a correction or removal →