Gardening Help

Have a gardening question? We’ve got the answer! Contact Colorado Master Gardeners at Denver Botanic Gardens.

Call: 720-865-3575

Email: gardeninghelp@botanicgardens.org

Stop by the Gardening Help Desk in the Helen Fowler Library (free with Gardens admission):

  • April – Oct.: Tuesday, Thursday and Saturday; Noon – 4 p.m.
  • Nov. – March: Tuesday, Noon – 4 p.m.

For over 10 years Denver Botanic Gardens and Colorado State University (CSU) Extension Colorado Master Gardeners have collaborated to provide help to home gardeners. Colorado Master Gardeners tap into the knowledge of the Gardens and CSU Extension to provide sound scientific research-based horticulture information that is applicable to our diverse and sometimes challenging Colorado climate.

Colorado State University Extension logo    

Pollinators

Pollinators are vital to the creation of many plant-based foods, beverages, medicines and fabrics. The Gardens strives to provide habitats for and information about important pollinators such as birds, bees, butterflies and other insects.

See pollinator-related classes, tours and workshops.

Make your garden welcoming for pollinators year-round!

  • Plant early and late season flowers to provide food when fewer plants are in bloom. Pulsatilla (Pasqueflower), Phlox subulata (creeping phlox), Nepeta (catmint), Papaver (poppies) and Penstemon give early season sustenance. Late season food comes from Symphyotrichum (asters), Helenium (sneezeweed), Salvia and Solidago (goldenrod).
  • Cut your garden back in spring. Native bees nest in dead limbs, branches and the hollows of the dried stems of flowering perennials. Leave some ground uncovered by weed barrier or mulch for ground-nesting bees.
  • Provide essential water with bird baths, water features or simply a bowl out in the open.
  • Reduce or eliminate your use of chemicals— even organic treatments can harm pollinators.

Alert From the Experts

The emerald ash borer (Agrilus planipennis) has been confirmed in Colorado. This invasive Asian beetle has decimated ash trees in the Midwest since its discovery in 2002, costing millions of dollars to homeowners and cities. Early detection is key to controlling the emerald ash borer! Look for signs of infestation and report them to your county extension office.

Denver Parks & Recreation has started a campaign called “Be A Smart Ash.” Spend some time on their website and learn how you can help protect your ash and our urban canopy by identifying, treating and replacing Denver’s ash trees.

Visit the Colorado Department of Agriculture for more info.