Cornerstone Nursery
4101 Pennsylvania Ave, Dubuque, IA 52002
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 ★ (30 Google reviews) · as of 2026-08-06
Licence record on file, unconfirmed Matched IA's registry as of 2026-08-04 (96 days ago), too old for us to state this business is currently licensed. See the source registry to confirm current status.
Before you visit
Cornerstone Nursery is listed as a wholesale grower. Many wholesale growers sell mainly to landscapers and garden centers, so call ahead to ask whether they sell to the public and whether there is a minimum order. A listing does not show what is in stock. Call before you visit to check plants, sizes and availability.
We list 13 other places within 10 miles in Iowa, 2 of them independent. The closest in Iowa is Walmart Garden Center, 1.0 mi away.
Our directory has 23 listings in Dubuque. Compare them on the Dubuque page.
Growing conditions
- USDA hardiness zone
- 5a
- Avg. minimum winter temp
- -20°F
- Median frost dates
- First ~Oct 21 · Last ~Apr 19
Frost dates: NOAA 1991–2020 Climate Normals, nearest station (DUBUQUE L&D 11, IA US, 9.4 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.
Nearby nurseries
- Walmart Garden Center Dubuque, IA 1.0 mi away
- Hy-Vee Lawn & Garden Dubuque, IA 1.1 mi away
- Lowe's Garden Center Dubuque, IA 1.1 mi away
- Lowe's Home Improvement Dubuque, IA 1.1 mi away
- Wagner Nursery, Inc. Asbury, IA 1.1 mi away
- Hy-Vee Lawn & Garden Dubuque, IA 1.4 mi away
Frequently asked questions
- What type of business is Cornerstone Nursery?
- Cornerstone Nursery is classified as a grower in Dubuque, IA.
- What USDA growing zone is Cornerstone Nursery in?
- Cornerstone Nursery (ZIP 52002) is in USDA hardiness zone 5a, with an average minimum winter temperature of -20°F.
Source: State-licensed & Google Business Profile. Last checked 2026-08-06. See something wrong? Request a correction or removal →