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Perennials - Mid to Late Summer Bloom Time Just as we start to get used to seeing our early summer perennials explode in color, on comes these beauties to steal the show for the late summer garden! Like all the perennials we offer, these were picked for their excellent durability.
Plant Select 2001 Helmets of yellow flowers stained with orange from mid July to autumn.
Plant Select 2002 This compact lavender and rose, large flowered selection is showier than in the species providing more display for you and attractive food for hummingbirds and butterflies from late summer to fall. Winters in some Casper neighborhoods.
 Coronado Red Agastache (Agastache x ‘Coronado Red’ ‘Pstessene’)
Plant Select 2009 This distinct brilliant crimson and maroon spired selection from the northern Colorado Welby Gardens is not only a new color scheme but exhibits a summer-long bloom season providing hummingbird and butterfly food for a much longer season! No more waiting for the second half of summer for agastache bloom! Grow agastaches in sun.
Plant Select 1997 Sunset orange and lavender flower spikes top gray - green root beer scented foliage from later summer through fall in fairly hot summer settings. This hummingbird and butterfly magnet has a good record of surviving our winters when it is planted in drier mineral soil, in spots without reflected warmth in winter. While the usual agastache needs full sun, Sunset tolerates part shade as well. Water needs are relatively low once this xeric plant is established.
Colorado Gold Gazania ( Gazania linearis ‘Colorado Gold’)
Plant Select 1998. Glossy mounds of deep green strap shaped leaves are spangled with 3 inch shiny yellow flowers all season. Unlike other ganzania, this one is a hardy perennial perfect for the xeric, rock and sunny perennial gardens. Does well in amended as well as lean soils.
Bloom Time Height Width Zone Watering Sun Summer into Autumn 3 inches 10 inches 4 Full Sun
New! This is a great vertical, bottle brush, white accent, exclamation point in the sunny perennial bed! Alba is an old time favorite for summer gardens that will attract butterflies but not deer.
 Kolbold Liatris
(Liatris spitica 'Kobold') 
New! This is not as tall as Alba, but still a great bottle brush, purple, exclamation point! Like Alba, Kobold blooms July - August.
Mexican Hat Prairie Coneflower is a native of the eastern prairies of Wyoming, with blossoms set on tall slender stems 15 to 24 inches tall. The center cones are ringed by downward curving petals of mahogany (Red Mexican Hat) or bright yellow (Yellow Mexican Hat) giving the appearance of little sombreros! Bloom season is midsummer to autumn. Planted in a mass, these plants make quite a display. Choose one color or mix it up, we offer both varieties. May reseed in gravelly soils for a natural looking planting. Fittingly, Mexican Hat is our company's logo! Click Here to watch a VIDEO of Mexican Hat.
Mexican Hat Prairie Coneflower is a native of the eastern prairies of Wyoming, with blossoms set on tall slender stems 15 to 24 inches tall. The center cones are ringed by downward curving petals of mahogany (Red Mexican Hat) or bright yellow (Yellow Mexican Hat) giving the appearance of little sombreros! Bloom season is midsummer to autumn. Planted in a mass, these plants make quite a display. Choose one color or mix it up, we offer both varieties. May reseed in gravelly soils for a natural looking planting. Fittingly, Mexican Hat is our company's logo! Click Here to watch a VIDEO of Mexican Hat.
 Norah Leigh Phlox (Phlox paniculata 'Norah Leigh') 
New! This is a tall garden phlox that bears large clusters of white flowers with a deep pink eye in July and August. Leaves are edged with a band of creamy yellow. It's variegated foliage adds interest even when not in bloom. Great for cut flowers!
Size Cost Premium $8.00
Missouri Evening Primrose (Oenothera macrocarpa) Large, deep yellow flowers cover sprawling mounds of glossy, dark green foliage from summer to frost. This prairie native is easily grown on watered soil with drainage or on drier clay.
Silver Blade Evening Primrose (Oneothera macrocarpa var. incana) Plant Select 1999 and still a champion of the xeric garden. A native of the southern Great Plains, it has silvery-blue leaves complimented by huge, clear yellow flowers from June through autumn. Handles clay soil so long as its kept on the dry side.
Yella Fella Primrose (Oenothera pilosella 'Yella Fella') New! This one sports large, brilliant golden flowers that open from bright orange buds. Its intense green and hairy foliage turns reddish in autumn. An easy keeper anywhere you plant it so long as it stays on the dry side. Butterflies like it - deer don't!
Regal Torchlily (Kniphofia caulescens) Plant Select 2010! Drop dead gorgeous blue-green foliage is garden worthy in its own right, but by late summer the clump is crowned with glowing crimson, golden and ivory torches that create a focal point in the xeric garden. Needs well drained soil. Zone 5 in the literature but zone 4 in our experience.
Russian Sage (Perovskia atriplicifolia) This vase shaped 3 to 4 foot accent plant makes a vivid statement behind xeric perennials or in the middle of a stand of plants! Blue-violet flower spikes top silvery gray foliage in late summer through hard freeze. This high desert native of Afghanistan thrives in lean soil on hot windy sites and has proven itself reliable on Wyoming’s high plains as well. Deer don’t touch it!
 Summer Blues Delphinium
(Delphinium grandiflora 'Summer Blues')
New! Delphiniums can get quite large - over 3 feet, often requiring staking in our high winds, but not this one! Summer Blues is a small well branched dwarf, covered in sky blue flowers at a height of only 12 inches. Expect flowering from early summer to autumn. A great plant for edging, in the mixed perennial bed, even in containers with pastel colored annuals - it will bloom this season. Considered a short-lived perennial, but what beauty it will provide!
Cassis Yarrow (Achillea millefolium ‘Cassis’)
This is the winner of the Fleuroselect Quality Mark Award! This clump forming yarrow has masses of attractive, intense deep red flowers throughout most of summer going into autumn. Great for the perennial bed or xeric garden. Flowers can be used in cut flower arrangements.
Bloom Time Height Width Zone Watering Sun Summer to Autumn 24 inches 20 inches 4 Full Sun to Part Shade
Coronation Gold Yarrow (Achillea ageratifolia)
This perennial blooms 36 to 42 inches tall with 3 to 4 inch wide golden-yellow flower heads from later June through autumn above silvered green fern-like foliage. This reliable old standard fills a great place at the back of the border or as an accent near caryopteris or Russian Sage. This one does not run about through the flower bed and will stay around for years. Enjoy it as a cut or dried flower, too!
A spreading clump of finely cut grayish-green foliage producing erect stalks topped by tight clusters of red flowers. Xeric.
Rain Gauge Throughout this site, the following are used as guidelines for watering established plants:
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Coronado Agastache (Agastache ‘Coronado’)
Sonoran Sunset Agastache (Agastache cana ‘Sinning’ ‘Sonoran Sunset’)
Sunset Agastache (Agastache rupestris)
Alba Liatris
(Liatris spicata 'Alba') 
Red Mexican Hat Coneflower
Yellow Mexican Hat Coneflower (Ratibida columnifera) 
Red Beauty Yarrow (Achillea millefolium 'Red Beauty')
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