The Wyoming Plant Company -- Landscape plants for Wyoming's climate

Ground Covers or Lawn Alternatives

Planted in mass in small areas these plants are an alternative to high maintenance sod. Think of those hard to mow and water areas like around posts and benches where the mower doesn‘t fit, on slopes and near foundations! The plants we offer compliment each other visually, have the same water needs and soil tolerances—So go a head and mix and match!

Greek Yarrow   New! Greek Yarrow (Achillea ageratifolia)

Ground hugging 12” diameter circular mats of deeply cut gray-white foliage are topped by 6”-10” tall flower stalks of cheery white blooms in late spring. Makes a good edging in a xeric or well drained garden and an accent in a rock garden. This one will not run!
Zone 3 Full sun
Size: 2.5" pot AAGY-P Cost: $2.85


Thymus serpyllum 'Minus'   Thyme (Thymus serpyllum ’Minus’)

This species of thyme is the densest tiny-leafed medium-green creeper perfect for diminutive rock garden, in troughs or between stepping stones, will tolerate moderate foot traffic. Deer and rabbit don’t want to eat this one!
Zone 4 Full sun to part sun
Size: 2.5" THSM-P Cost: $2.85


Mayfair Lemon Thyme   New! Mayfair Lemon Thyme (Thymus citriodorus ’Mayfair’)

A choice, vigorous multi-purpose hardy landscape plant. Whether as a replacement for lawn, as a rock garden accent, or as a garden edging you will like the way this one winters and how it tastes when harvested for culinary use.
Zone 4 Full sun to part sun
Size: 2.5" TCMT-P Cost: $2.85


Thyme 'Doone Valley'   Thyme ‘Doone Valley’ (Thymus citriodorus ‘Doone Valley’)

Green and gold variegated citrus-scented thyme with prostrate foliage that turns reddish in winter and blooms in lavender in summer. Size (height 4” by width 8-12”) makes this one suited to stepping stone territory as well as thyme lawn accent and edging duty. Plant in sun in relatively low water settings. Zone 5.
Pot Size: 2.5” TCDV-P Cost: $ 2.75

Zone 5 Sun
Size: 2.5" TCDV-P Cost: $2.75


Wooly Thyme

 

Wooly Thyme (Thymus praecox pseudolanuginosus)

Ground hugging cushion of wool-gray foliage, 1 ft diameter, with purple flowers in summer. Tolerates winter exposure better than many thymes. Great for light foot traffic and handles partial shade. A reliable choice for planting rock walls, as it will spill over the edge with the least winter die-back.

Zone 4 Sun to part shade
Size: 2.5" TPWT-P Cost: $2.85


Veronica 'Crystal Rivers'   Veronica x 'Crystal Rivers'

Plant Select® 2003 A wonderful little perennial that has proved itself in Casper through five drought years if you count under its former name before it became Plant Select! One plant forms 4” x 18” mat of glossy dark green foliage with deep blue flowers in summer. This hybrid cross of wooly and Turkish speedwell is better than either parent!
Zone 4 Full sun for the most blooms
Size: 2.5" pot VECR-P2.5 Cost: $3.00
Size: 1 quart VECR-Pq Cost: $5.25


Purple Winter Savory   New! Purple Winter Savory (Satureja Montana ssp. Illyrica)

Plant Select® 2007 We’ve used regular culinary winter savory as a hot rock garden accent and groundcover for years. This hardier selection is prostrate growing, evergreen, well covered in purple (vs. white) flowers August to hard freeze and just as useful in the kitchen as the regular culinary herb. While not picky about soil, grow on the dry side in tight clay. Height:4”-6” by 12”-15” wide.
Zone 3b Full sun to partial shade
Size: 2.5" SMWS-P Cost: $2.85


Persian Stone Cress   New! Persian Stonecress (Aethionema grandiflora Pulchella Group)

Delightful, alkaline soil tolerant dry rock garden plant that blooms in bright, light pink from May to August. Bloom stalks are carried over a 6-8” tall by 12” wide helmet of powdery blue foliage. Full sun, don’t accidentally drown this one by planting in a low spot. Zone 5 but Casper tested.
Zone 5 Full sun to partial shade
Size: 2.5" AGPS-P Cost: $2.75


Sedum Angelina   Sedum Angelina (Sedum rupestre ‘Angelina’)

This Proven Winners’ plant from Croatia really is a winner. Brilliant yellow tipped light green conifer shaped leaves become orange tinged during early and late season growing conditions. The 6-8” tall by up to 12” wide plant is a strong grower and is as tough as nails: successfully over wintering in rock pockets and at the edges of planters left outdoors and ignored. Use this one not only in the traditional sunny dry garden as a groundcover, edging, or accent but also in combination hanging baskets, as planter or barrel edging. Best color develops in full sun.
Zone 3 Full sun
Size: 2.5" SRSA-P Cost: $2.95
Size: 4" SRSA-p Cost: $4.95


Red Tips Hens and Chicks   New! ‘Red Tips’ Hen and Chicks (Sempervivum calcareum monstrosum ‘Red Tips’)

Eye-catching specimen that is green, marked with striking red on the very tips of the leaves. Let this one brighten sunny, dry spaces in rock garden or trough. Each hen grows up to 4” tall by 8” wide when the surrounding chicks are added.
Zone 4 Full sun
Size: 2.5" SCRT-P Cost: $2.75


Turkish Veronica   Turkish Veronica (Veronica liwanensis)

Plant Select® 1997 Cobalt blue flowers cover the mat-forming glossy green leaved groundcover in late spring to early summer. Height 1-2” by 12” diameter. Plant this Zone 4 low water groundcover, accent or edging in full to part sun.
Zone 4 Full sun to part sun
Size: 2.5" VLTV-P Cost: $2.85


Ice plant info: Dryland ground covers, rock garden accents, xeric garden edgings, trough plantings, all are good uses for these. They thrive in low water settings in clay and tolerate more moisture in sharp draining soils. Unlike sedum, they are not a deer or rabbit magnet and can be used on sloping sand for erosion control and around structures as part of a fire resistant landscape. Consider planting these between stepping stones in spots that seem too hot and dry for thymes.

Crystal Rivers and Turkish Veronicas and Hymenoxes scaposa are good companion plants as are the ground covers like Angelina sedum, Silverton Bluemat Penstemon, Purple Winter Savory and Greek Yarrow. Gravel is the preferred mulch around these xeric ground covers for both weed control and decorative interest. Be careful to not apply mulch over or too deeply around plant crowns.


Red Mountain Ice Plant   Red Mountain Ice Plant (Delosperma dyeri ‘Psdold’)

Plant Select® 2007 Blazing scarlet flowers form a red carpet atop this 2”tall succulent throughout the growing season. Individual plants will become 15-20” wide making a striking, fire-resistant ground cover for drought tolerant xeric plantings in sand, loam or clay. For best bloom plant in full sun but partial shade is also tolerated.
Zone 4-8 Full sun to partial shade
Size: 2.5" DDRM-P Cost: $2.95


Table Mountain Ice PLant   ‘John Proffitt’ Table Mountain Ice Plant (Delosperma 'John Proffitt')

Plant Select® 2002 Lustrous fuchsia flowers bloom and repeat on this fast spreading South African succulent ground cover. Leaves persisting through winter will remain green and may become tinged with purple. Plants mature to 2” tall by 18” wide.
Zone 4 Full sun
Size: 2.5" DJPT-P Cost: $2.75


Mesa Verde Ice Plant   ‘Kelaidis’ Mesa Verde Ice Plant (Delosperma ‘kelaidis’)

Plant Select® 2002 Iridescent salmon-pink blooms top this 2” tall succulent that will be an 18” wide groundcover at maturity. Blooms and repeats slightly out of sync with Table Mountain to help extend the season of color on these carpet-like plants.
Zone 4 Full sun
Size: 2.5" DKMV-P Cost: $2.75


Starburst Ice Plant   Starburst Ice Plant (Delosperma floribundum ‘Starburst’)

Plant Select® 1998 This upright clumping succulent produces a dome of bright pink flowers with eye-catching centers on a 4” tall by 10” wide plant. The petals have an almost metallic shimmer. Blooming starts in June and repeats until fall.
Zone 4/5 Full sun
Size: 2.5" DFSI-P Cost: $2.65




Rain Gauge

Throughout this site, the following are used as guidelines for watering established plants:

These plants need regular watering somewhat like a bluegrass lawn so that they never dry to depth in the root system during the active growing season and need occasional winter watering to prevent root dessication and resultant plant death.

  These plants are adapted to intermittent deep watering with soil drying to a depth of a few inches between waterings. Watering frequency may be every couple of weeks during the active growing season and maybe only one winter watering for optimal care.

  These truly xeric plants can live with our 12 inches of natural precipitation and only need a winter watering during a multi-year drought but they will thrive with a monthly watering. Overwatering will kill some of these.