Shadow Grass Demonstration Garden
1812 Celestial Ln
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.
4.5 ★ (2 Google reviews) · as of 2026-08-06
We don't hold a nursery/dealer licensing registry for CO yet, so we have not checked whether this business is licensed. This is not a finding either way: it means our coverage doesn't reach this state, not that anything is wrong with this business.
Before you visit
Shadow Grass Demonstration Garden is an independent business, not part of a chain we track. A listing does not show what is in stock. Call before you visit to check plants, sizes and availability.
We list 34 other places within 10 miles in Colorado, 23 of them independent. The closest in Colorado is Walmart Garden Center, 1.8 mi away.
Our directory has 26 listings in Longmont. Compare them on the Longmont page.
Growing conditions
- USDA hardiness zone
- 5b
- Avg. minimum winter temp
- -15°F
- Median frost dates
- First ~Oct 5 · Last ~May 7
Frost dates: NOAA 1991–2020 Climate Normals, nearest station (LONGMONT 2 ESE, CO US, 5.2 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 Longmont, CO 1.8 mi away
- Bent Heirlooms Longmont, CO 2.1 mi away
- The Front Porch Garden Shop Longmont, CO 2.5 mi away
- Ace Hardware Longmont Longmont, CO 2.5 mi away
- Longmont Florist Longmont, CO 2.6 mi away
- A florae Longmont, CO 2.6 mi away
Frequently asked questions
- What type of business is Shadow Grass Demonstration Garden?
- Shadow Grass Demonstration Garden is a nursery or garden center in Longmont, CO; its business type has not been classified.
- What USDA growing zone is Shadow Grass Demonstration Garden in?
- Shadow Grass Demonstration Garden (ZIP 80504) is in USDA hardiness zone 5b, with an average minimum winter temperature of -15°F.
Source: Google Business Profile. Last checked 2026-08-06. See something wrong? Request a correction or removal →