= Water twice per month or less, once established.
= Water about once per week, once established.
= Water about twice per week, once established.
= Water three days per week, or more.
Use the plant water needs as a guideline. Actual plant water needs will vary for several reasons, including weather conditions, soil type, sun exposure, root depth, wind and elevation. Adjust your watering schedule as needed to meet the plants' needs at your site. Water recent transplants more often than established plants.
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Penstemon mensarum
low
blue
May and June
24 to 30 in.
10 to 16 in.
Yes
native to the western slope of Colorado
sun
USDA zones 4-9
hardy to 9,500 ft.
Grand Mesa penstemon is a perennial flower native to the western slope of Colorado. It has a mat of glossy green leaves that turn orange-red in winter. In May, it produces stunning spikes of cobalt-blue flowers. It's worth planting simply for the incredible flower color.
Grand Mesa penstemon has been a beautiful bloomer at the Xeriscape Demonstration Garden. Individual plants live only for a few years, but they are worth replanting because of the stunning flower spikes.
Remove spikes of spent flowers after bloom.
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