Petrophyton caespitosum (Rosaceae) (10x40,Z3,P,L,1) ............................................ 100 seeds / $4.00 12034.38 (W) Custer Co., ID, 6650ft, 2027m. Also spelled Petrophytum. Slow-growing, bright blue-green mats produce white Astilbe-like spikes in late summer. Highly adaptable to most fast-draining soils. I have found this calciphile remarkably easy to grow.

Petunia integrifolia (Solanaceae) (16x45,A,L,1) .................................................................. 100 seeds / $3.00 59879.07    Ascending runners spread from a central root and are massed with 1-1/2" (4 cm) vivid plum-purple flowers all summer.   Photo

Phacelia campanularia (Hydrophyllaceae) (16x10,A,L,2) .............................................. 100 seeds / $4.00 12196.17 (W) San Bernadino Co., CA, 3800ft, 1160m. Deep, sapphire-blue, bell-shaped flowers unfurl along coiled stems. The roundish leaves are toothed and mildly hairy/glandular. Beautiful annual which brightens up any garden.   Photo

Phacelia sericea (Hydrophyllaceae) (16x14,Z3,P,L,3:6w) ........................................... 100 seeds / $3.50 76415.32 (W) Park Co., CO, 12150ft, 3704m. Showy spikes of blue-purple with exserted golden stamens. Silver-gray, dissected basal leaves.   Photo

Phemeranthus teretifolius (15x10,Z5b,P,L,3:4w) .......................................................... 50 seeds / $3.50 78414.10 (W) DeKalb Co., GA. Thin terete leaves in dense clumps bear numerous airy stems with deep pink flowers roughly 3/4 inch across. Found on sandstone, granitic and serpentine outcrops in the southeastern US.

Philadelphus lewisii (Philadelphaceae) (220x150,Z4,P,L,3:8w) ............................................ 100 seeds / $3.50

 54432.12  (W) Adams Co., ID, 4000ft, 1220m.  One of the truly outstanding shrubs of the Pacific Northwest. In mid-summer, hundreds of white, Dogwood-like flowers burst into fragrant splendor on every bush.    Photo1    Photo2

Phlomis tuberosa (Lamiaceae) (90x28,Z5,P,L,3:4w) ……………………..............……….... 25 seeds / $3.50

 78950.05    Whorls of pink to purple flowers along multiple stems arising from a woody crown, the roots sprouting small tubers. Coarsely-veined, pubescent leaves. Native from Europe to Asia.

Phlox colubrina (Polemoniaceae) (15x35,Z6,P,L,4:12w) ......................................................... 20 seeds / $6.00

 12794.18  (W) Washington Co., ID, 2300ft, 701m.  Masses of vibrant, deep pink, long-petalled flowers.   Photo

Phlox grayi (4x18,Z5,P,C,4:8w) ............................................................................................. 12 seeds / $6.00

 32755.13  (W) Coconino Co., AZ, 7200ft, 2195m.  (= P. longifolia ssp. brevifolia = P. stansburyi v. brevifolia). An outstanding cushion Phlox with wide, stiff leaves and luminous cerise-pink flowers. Seeds germinate readily and I find the plants relatively easy to cultivate. Grows on volcanic loam which dries out in the summer.   Photo

Phlox longifolia (12x10,Z4,P,C,4:16w) ............................................................................ 10 seeds / $6.00 54798.22 (W) Uintah Co., UT, 8000ft, 2439m. Non-mat-foming species with stems clothed in a few long, linear leaves crowned with corymbs of saucers colored in various pink shades.   Photo

Phlox pulvinata (blue-flowered form) (2x12,Z3,P,C,4:12w) ........................................ 15 seeds / $6.00 70864.12 (W) Albany Co., WY, 10575ft, 3224m. The deep icy-blue flowers are mirrored by the glacial lakes below the alpine ridges where these dense, caespitose cushions grow. Variation in color is considerable, from very pale blue to deep china blues and even a few lavender-blues. Photo1   Photo2   Photo3

Phlox roemeriana (8x10,A,C,2) ............................................................................................. 30 seeds / $4.00

 74639.10  (W) Edwards Co., TX, 2600ft, 793m.  Sumptuous deep lavender-pink flowers with gold starburst centers. A sparkling annual well worth growing from the limestone terraces of the Edwards Plateau.   Photo

Phlox speciosa (pink) (Polemoniaceae) (13x22,Z4,P,L,4:12w) ........................................ 15 seeds / $6.00 76716.43 (W) Lewis and Clark Co., MT, 6350ft, 1936m. A beautiful form here with pale China-pink flowers on rather dwarf plants compared to the Pacific Northwest populations, and definitely hardier here. Photo

Phlox stansburyi (12x14, Z6, P, C, 4:8w) ............................................................................. 40 seeds / $5.00

 76794.11  (W) Inyo Co., CA, 7200ft, 2195m.  Very viscid, lanceolate foliage erupt into dozens of white, pink-throated trumpets with unusually long tubes, over an inch (3 cm).  In volcanic desert soil.

Phlox woodhousei (7x16,Z5,P,L,3:8w) ............................................................................ 15 seeds / $5.00 92675.23 (W) Coconino Co., AZ, 7100ft, 2165m. Narrow-leaved foliage and clusters of pink, white-throated, notched flowers. On level areas of loam derived from basalt.   Photo

Phoenicaulis cheiranthoides (Brassicaceae) (5x13,Z3,P,C,3:6w) .................................. 30 seeds / $3.50 12378.14 (W) Blaine Co., ID, 8900ft, 2713m. Tufts of oblanceolate blue-green leaves covered in fine hairs bear clusters of lavender to pink wallflower-type flowers very early in spring. Dagger-like seed pods are splayed around the tufts at maturity.

Pholisma arenarium (Boraginaceae) (16x40,Z?,P,?,?) ........................................................ not available 07441.74 (W) Kern Co., CA, 2850ft, 870m. A parasitic herb sprouting out of the sands of the Mojave Desert.    Photo

Phyllodoce empetriformis (Ericaceae) (24x36,Z5,P,L,3:8w) ......................................... 100 seeds / $3.50 39670.42 (W) Yakima Co., WA, 5500ft, 1677m. Acicular leaves with deep pink campanulate flowers. Photo

Physaria acutifolia (Brassicaceae) (5x14,Z4,P,L,3:6w) ..................................................... 50 seeds / $3.50 01301.20 (W) Sweetwater Co., WY, 8150ft, 2485m. Handsome silver-gray rosettes erupt into a mass of yellow in late spring. On steep screes of sandy loam.

Physaria alpina (Brassicaceae) (4x14,Z3,P,L,1) ................................................................ 75 seeds / $5.00 05470.12 (W) Park Co., CO, 12100ft, 3689m. Silver, offsetting rosettes surround themselves with deep yellow blossoms shading to almost orange in the throat. On alpine screes. One of the best.   Photo

Physaria chambersii (9x10,Z5,P,L,3:6w) ........................................................................... 50 seeds / $4.00 12366.43 (W) Sevier Co., UT, 6500ft, 1982m. Silvery-green rosettes have clusters of yellow flowers in the spring, followed by large balloons of tannish, angular fruit held erect.

Physaria condensata (Brassicaceae) (2x7,Z4,P,L,3:6w) ...................................................... 50 seeds / $5.00 12800.10 (W) Lincoln Co., WY, 6900ft, 2104m. Genuine xerophytes dwarfed by the constant wind and as silver-white as the gypsiferous badlands these plants grow on. This new species, described only in 1983, has decumbent, bright yellow racemes. My vote for the best in this genus.

Physaria newberryi (8x18,Z6,P,L,3:6w) ................................................................................ 50 seeds / $3.50

 58433.27  (W) San Juan Co., NM, 7100ft, 2165m.  Large silver-gray rosettes produce the most voluminous fruit I have ever seen in this genus. Yellow flowers.

Physaria rollinsii (Brassicaceae) (2x6,Z4,P,L,3:5w) ........................................................... 45 seeds / $4.00 74794.36 (W) Gunnison Co., CO, 8550ft, 2607m. One of the smallest in the genus, perfect for troughs. Decumbent yellow flowers are splayed around silver-gray rosettes.

Physaria saximontana (4x10,Z5,P,L,3:6w) ........................................................................... 50 seeds / $3.50

 76234.18  (W) Fremont Co., WY, 6700ft, 2043m.  A choice dwarf species with chalky rosettes and clusters of yellow flowers. On tuffaceous mud/sandstone.

Phyteuma scheuchzeri (Campanulaceae) (12x25,Z5,P,L,3:8w) .................................... 100 seeds / $3.50 76147.04 Masses of spiky purple-blue flowers over mounds of blue-green, lanceolate foliage.

Pinus edulis (Pinaceae) (200x180,Z5,P,C,3:8w) ............................................................... 30 seeds / $4.00 21599.44 (W) Santa Fe Co., NM, 6500ft, 1982m. The edible Pinyon Pine, sold here only for growing your own trees. Found in many of the dry areas throughout the western United States. Dense, green foliage, the needles in bundles of two.

Pinus flexilis (Pinaceae) (540x360, Z3, P, C, 3:8w) ……………………….............……….. 45 seeds / $3.00

 30556.13  (W) Johnson Co., WY, 8200ft, 2500m.  "White Pine."  A regal pine similar to the Foxtail Pine with five leaves per bundle, each limned with very fine white lines.  Branches are incredibly tough, can be tied in knots without breaking.

Platystemon californicus (Papaveraceae) (16x9,A,RL,3:4w) ........................................ 100 seeds / $3.50 12194.03 This is the pretty form with cream-and-butterscotch petals and a prominent boss of stamens. Stems and leaves are generally shaggy-hairy. Found throughout the Mojave Desert.

Polemonium foliosissimum v. alpinum (Polemoniaceae) (50x24,Z3,P,L,3:8w) ................ 100 seeds / $3.50 30794.11 (W) Cache Co., UT, 8600ft, 2622m. (= P. albiflorum.) Several upright stems from a central rootstalk bear large capitate flower clusters of snow white. The tallest of the species offered here.

Polemonium kiusianum (40x18,Z5,P,L,3:8w) ………………………….........…………….. 40 seeds / $3.00

 52501.05     Produces quantities of mid-blue to blue-violet flowers in summer. Japan.

Polemonium pauciflorum (32x65,Z6,P,L,3:6w) .................................................................... 90 seeds / $3.50

 70095.17  (W) Cochise Co., AZ, 6800ft, 2073m.  Lax, pinnate foliage, often climbing on surrounding shrubs, bearing long-tubed trumpets in various peach and pale yellow shades.

Polemonium pulcherrimum (12x14,Z5,P,L,3:6w) .................................................................. 90 seeds / $3.50

 70994.29  (W) Chelan Co., WA, 5000ft, 1524m.  More upright form compared to the Jackson Co., Oregon collection 70994.10.  Pinnate foliage, deep blue to pale blue flower heads.

Polemonium viscosum (10x16,Z3,P,L,3:6w) .................................................................... 80 seeds / $3.50 90616.61 (W) Park Co., WY, 10450ft, 3186m. An apparent dwarf form here but may be only because of the exceptionally cold and windy conditions on this N-facing slope in the Beartooth Mtns. Small viscid leaves and trusses of purple-blue flowers.   Photo

Potentilla pensylvanica (Rosaceae) (8x10,Z4,P,L,3:6w) ………………………..........…... 100 seeds / $3.00

 70398.15  (W) Iron Co., UT, 11300ft, 3445m.  A dwarf alpine form of this somewhat widely spread species. Olive-yellow-green plants with hairy, pinnate leaves and dense clusters of yellow flowers. On a windswept, E-facing, volcanic mountain summit.

Potentilla thurberi (18x24,Z5,P,L,3:6w) ....................................................................... 100 seeds / $4.00 78372.14 (W) Grant Co., NM, 7865ft, 2398m. Unusually large, showy 1¼" diameter, dark velvet-red flowers nearly all summer. Attractive 5-palmate foliage. On a gentle north-facing slope of gravelly loam.

Primula alcalina (Primulaceae) (10x5,Z5,P,L,3:8w) ....................................................... 100 seeds / $3.50 19412.12 (W) Custer Co., ID, 6465ft, 1971m. Tufts of fleshy, somewhat rugose, lanceolate leaves with short stems of capitate heads of small white flowers, their bases in yellow rings. Not spectacular, probably only of interest to collectors. In grassland several feet away from the creek. Photo

Primula auricula (Primulaceae) (12x14,Z5,P,L,3:8w) ................................................... 100 seeds / $3.50 08759.04 Fleshy obovate leaves, often farinose, bearing clusters of deeply-notched, white-eyed, yellow flowers on short scapes. One of the easiest and most rewarding to grow.

Primula cusickiana (7x6,Z5,P,L,3:8w) .......................................................................... 100 seeds / $5.00 13017.74 (W) Camas Co., ID, 5060ft, 1543m. Blue to violet-blue, round-petalled flowers shading to a darker ring around the yellow throat. This population, which bakes on the volcanic Snake River Plains all summer, is probably much more heat-tolerant than alpine populations. Photo

Primula parryi (Primulaceae) (18x20,Z3,P,L,3:6w) ........................................................ 100 seeds / $3.50 70214.45 (W) Boulder Co., CO, 10950ft, 3338m. "Rocky Mountain Primrose" with magenta flowers.   Photo

Primula rusbyi (8x10,Z5,P,L,3:6w) ................................................................................ 70 seeds / $4.00 75016.18 (W) Lincoln Co., NM, 11450ft, 3490m. A very pretty and floriferous Primrose with umbels of violet. Each flower has a yellow eye and a crimson ring, the petals notched. The stiff green leaves are minutely toothed. The very similar P. rusbyi ssp. ellisiae will be found in this population.   Photo

Primula specuicola (8x8,Z5,P,L,3:5w) ............................................................................ 100 seeds / $4.00 76718.43 (W) Grand Co., UT, 4100ft, 1250m. The rosettes of spatulate, sparsely-toothed leaves are covered with a white farina and bear delicate umbels of lavender-purple flowers with a large white eye.   Photo

Primula uralensis (18x10,Z4,P,L,3:8w) ………………………………………..........……... 50 seeds / $3.00

 87419.07  (= P. veris ssp. macrocalyx.) Bright yellow flowers from inflated calyxes over rugose, hairy leaves.

Proboscidea louisianica (Martyniaceae) (80x140,A,C,1) ................................................ 18 seeds / $3.00 54698.16 (W) Pueblo Co., CO, 4400ft, 1341m. "Unicorn plant" or "Devil's Claw." Large white and yellow flowers similar to the Catalpa tree, on sprawling, clammy-leaved plants. Probably best known for its oddly-shaped fruit, up to a foot long with wicked claws.

Psilostrophe bakeri (Asteraceae) (10x12,Z5,P,L,1) ......................................................... 40 seeds / $4.00 10192.12 (W) Mesa Co., CO, 5100ft, 1555m. An attractive dwarf perennial of felted leaves covered with papery, notched flowers of rich yellow.   Photo

Ptelea trifoliata (Rutaceae) (90x60,Z7,P,C,3:8w) ............................................................ 20 seeds / $3.00 78640.11 (W) El Paso Co., TX, 6725ft, 2050m. A very surprising find, just three stunted bushes up in the arid mountains of western Texas. Leaves in threes with wafer-like seeds, the hoptree is much more common in wetter parts of the U.S. Odd odor like the herb rue.