Welcome to Long's Gardens

3240 Broadway - map
P.O. Box 19
Boulder, CO. 80306

Toll Free: 866-442-2353
Phone: 303-442-2353
Fax: 303-413-1323
e-mail us
Welcome to Long's Gardens

Welcome to Long’s Gardens! We are a third generation, family owned and operated iris farm in the middle of Boulder, Colorado. We were founded in 1905 by J.D.Long. Today the business is carried on by Catherine Long Gates, grand-daughter of J.D., and her husband, Dennis Gates.

J.D. Long
J.D. Long

For more on our history, see About us. We specialize in bearded iris, which we sell both as dig it yourself and by mail order catalog. Operating an agricultural enterprise in the middle of a city makes for some interesting challenges, but also provides an opportunity for people to slow down, take a break, and relax (take a virtual tour at Beyond the Bloom). Come see and smell the iris and enjoy a bit of historical Boulder. We’re open to the public when the iris are in bloom, May through early June. Please check back often for updates.


Long's Shorts


We will be open for the 2014 season from

April 26 through June 10, 9:00 am to 5:00 pm.

The iris have been provided with fairly regular doses of moisture this season and we are hoping for a good bloom. Please check back for status updates.

We've been slow in our updates of this page, but very busy with work on the Silver Lake Ditch, the main source of our irrigation water. It was significantly affected by last fall's flooding. Thanks to many volunteers and amazing workers, we are making great progress. The photo below was taken near the mouth of Boulder Canyon at the site of one of the major slides into the ditch. The ditch was completely filled in by a slide and then dug out by hand, the culvert (now buried) was hauled in by hand and buried by hand. The debris from the slide was piled on the ditch bank (on the left side of the photo) and then used to bury the culvert.


Culvert installation on the Silver Lake Ditch



Updated on March 8, 2014

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