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Science-based gardening information for Colorado communities from CSU Extension, Denver Botanic Gardens, and Green Industries of Colorado.

Search Results for: iris

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2305 – Ravishing Rabbit Revenge

Rabbits often ravish trees and shrubs in many Front Range gardens during the winter. The deep snow covers normal food sources and provides a platform for rabbits to reach the bark high on woody plants. How can I prevent bunnies from coming into my yard? Win the bunny battle by excluding them from desirable plants. […]

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2309 – Managing Vole Damage in Landscapes

Adapted by Alison O’Connor, Larimer County Extension, from the CO-Horts blog originally authored by Tony Koski, CSU Extension Turf Specialist There are eight species of voles that live throughout Colorado; the one most likely to be found in urban landscapes is the meadow vole (Microtus pennsylvanicus) – often called the field or meadow mouse. Textbook signs of vole activity […]

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1909 – Xeriscape Annuals & Perennials

Many flowers enliven xeriscape landscapes. They can be mixed with shrub borders, planted as edgings, or used with mulches as alternatives to turf areas. Perennials and annuals that meet the low-water requirements of xeriscaping are available at most nurseries and garden centers. What should I do before planting flowers? Before planting flowers, improve the soil […]

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2007 – Christmas Trees: Recycling

The holidays are over. The Christmas tree is bedraggled and has probably become a terrible fire hazard. It’s time to get it out of the house.  Please don’t just put it out for garbage pickup. Many Colorado municipalities have tree recycling programs. Some have curbside pickup along with your normal waste pickup. Others have drop-off […]

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1354 – Shamrocks as Houseplants

There are hundreds of species of Oxalis or shamrocks, but the most common types are the Irish Shamrock (Oxalis acetosella) and the Good Luck Plant (Oxalis deppei). Both plants have green leaves and small white or pink flowers but the Good Luck Plant has white streaks along leaf veins. Both species exhibit nyctinastic movement, where […]

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1023 – Water Gardening: in Containers

You can create a container water garden in one afternoon. Here’s how: 1. Locate a large container that can hold water. Many garden centers and nurseries carry containers made for water gardening or you can use a half barrel. If you use a half barrel, line it with plastic to prevent toxins in the wood […]

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1075 – Cut Flowers for the Garden

Flower bouquets make everyone smile, and why not indulge yourself each day by creating flower arrangements from your own garden? Plants that look great in a flower border also do well as cut flowers. Think beyond annual flowers, like dahlias, gerbera daisies, zinnias and snapdragons, and expand into perennials, woody plants and even vines. What […]

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1018 – Perennials: How to Divide

Perennial plants that grow in a ring around a dead center, no longer produce good numbers of flowers or are edging into another plant’s growing space are probably in need of division. Many perennials are vigorous growers and need to be reined in. Asters, shasta daisies and goldenrod fall into this category. Others like bearded […]

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1032 – Daylily

What are daylilies? Few plants are as easy to grow as daylilies, which thrive in our climate. Daylilies feature strap-like, arching foliage that provides strong texture in the garden from spring through fall. These graceful leaves surround sturdy stalks of flowers that add an exotic element to the garden. The trumpet-shaped blooms appear in a […]

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1009 – Bulbs: Fall Flowering Crocus

A familiar flower blooming in what seems to be the wrong season is always a source of surprise and curiosity. Such a plant is the fall-blooming crocus that provides a burst of unexpected color in the autumn garden. How many different crocus’ are there? Technically members of the iris family, there are more than a […]

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