Learn about X Rated plants at our Garden & Landscape DIY Fair on Saturday February 24th from 10am-4pm!

What are X-rated plants? Xeric or low-water plants should be part of every Colorado landscape and are rated by their drought tolerance hence where they get their X-rating from. Xeric plants that you can grow in Colorado include trees like Bur Oak and Pinyon Pine, favorite shrubs like Lilac and Spirea, perennials such as Penstemon and Yarrow, and even annuals like Portulaca and California Poppy.

X-rating System:

X = Thrives in slightly dry conditions (about 1 inch of water per week) XX = Thrives in dry conditions (about 1/2 inch of water per week) XXX = Thrives in very dry conditions (about 1/2 inch of water every 2 weeks) Don’t forget native plants and Plant Select® options for your xeriscape garden. The City of Fort Collins even offers a Xeriscape Incentive Program. Here are some xeriscape plant lists to get you started. Xeriscape Colorado, The Complete Guide is a great book for those who are wanting an in depth look at xeriscaping in Colorado. Caution: Just because a plant is xeric, doesn’t mean you don’t have to water it. Most drought-tolerant plants need 2 to 3 years of regular watering to establish an adequate root system. Water well during establishment and then gradually reduce irrigation.