Arrowhead Alpines
2008 Perennials and Rock Plants: Pa - Pe

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I | J.K.L | M.N.O | Pa-Pe | Ph-Pl | Po-Pr | Pt-R | Sa | Sc-Sy | T | U.V.Y.Z

PACHYSANDRA PROCUMBENS

PACHYSANDRA PROCUMBENS   PRICE 1@ $8.00

A very heavily marbled bronze leaf form of our native deciduous species, courtesy of Punnett, a plant with immensely more charm than the overused Japanese one.

 

Pachysandra terminalis 'Green Carpet'        PRICE 1@ $8.00

I must say I prefer our native species to this but if all you are after is smothering foliage in an acid shady garden than this is for you (master gardeners and landscape architects may feel spoken to). Actually ‘Green Carpet’ is slower and more compact than the species and when used in moderation the evergreen foliage is attractive.

 

Paeonia

For years I considered peonies little more than ant covered floppy perennials with little to recommend them, however as I came to appreciate the range of wild species I began to view them in a new light. They are now one of my favorite genera, long lived in the garden, with incredibly showy flowers (which by the way do not need ants to open). The range of foliage textures in particular is far too under appreciated. Many will tolerate a bit of shade but none really thrive in deep shade. In general, they are plants of scrubby chaparral type habitats and will tolerate incredible abuse once they are established. Pests are few with only an occasional bit of botritis which is easily dealt with, the only serious problem is root knot nematode which is seldom a problem with seed grown species material however it is all to common in cheap discount store hybrids.

 

Paeonia  Hyb.  'Antwerpen' single pink lactiflora mid late    PRICE 1@ $19.00

 

Paeonia  Hyb.  'Nymph' single light rose with yellow center lactiflora    PRICE 1@ $19.00

 

Paeonia  Hyb.  'Peche' single white PRICE 1@ $19.00

 

Paeonia  Hyb.  'Sorbet' ice pink flowers with a ruff of double cream  PRICE 1@ $19.00

 

Paeonia  Hyb.  'Victor De La Marne' dark single lactiflora           PRICE 1@ $19.00

 

Paeonia anomola .............. PRICE 1@ $39.00

A thread leafed species from central Asia, it is not as finely cut as tenuiifolia, these are from German garden stocks and are more likely hybrids to anomola and not particularly thread leafed but still a welcome garden addition, flowers are brilliant crimson and about 9cm across.

 

Paeonia caucasica ........... PRICE 1@ $49.00

Usually the first paeony to bloom for us with attractive foliage and single generally pink flowers, it is one of my favorite species paeonies.

 

PAEONIA delavayi .............. PRICE 1@ $59.00

Tree to 6', dark maroon to purple red flowers to 4", lime loving, W. China seed grown.

 

Paeonia japonicum .......... PRICE 1@ $39.00

Yinger assures us these are the real thing, not obovata, which is often confused with it, single eyes, imported, flowering size or nearly so, choice and rarely available.

 

Paeonia lactiflora hyb PRICE 1@ $39.00

Mixed lactaflora hybrids these have all been single in a nice range of colors, they were open pollenated so who knows what the pollen parent is.

 

Paeonia mascula ............... PRICE 1@ $39.00

A rather widespread and variable plant that has been split into a number of subspecies, it is a naturally occurring tetraploid (related species like cambessedesii tend to be diploid) with large single rosy red flowers atop 2’ bushy plants.

 

Paeonia mollis .................... PRICE 1@ $39.00

A rare or possibly extinct plant in the wild it was brought to the UK in the 19th century from Russia but has never been seen again in the wild. It is related to officianalis, but very distinct looking, tetraploid with 20 chromosomes, the leaves are incised into 20 or so deeply cut leaflets, flowers are 3” across and usually single and red but possibly white.

 

Paeonia officianalis ssp. banatica 1@ $39.00

A southern European species that has been cultivated since antiquity, however the wild type single reds are rarely encountered in gardens, banatica is one of the larger subspecies, reaching 30cm in height with bowl shaped red flowers to 13cm across.

 

Paeonia peregrina smaller   $19.00    larger 1@ $39.00

Probably the most asked for species peony in our display gardens here at the nursery, brilliant single red flowers with attractive yellow stamens.

 

Paeonia rockii  ex  wu jinuyu china PRICE 1@ $69.00

New wild material out of china rockii is somewhat variable and these may or may not look like ‘Joseph Rock’, which has become the poster child for paeony rockii.

 

Paeonia suffruticosa ssp rockii PRICE 1@ $59.00

A legendary plant these are from commercial stocks and should be white with a dark central blotch but expect the occasional pure white or light pink, flowers are generally much larger than lutea and delavayi.

 

Paeonia tenuiifolia ........ PRICE 1@ $49.00

Brick red single flowers with feathery foliage these are from German garden stocks and may be a bit variable (if anyone finds a white one let us know).

 

Paeonia wittmanniana . PRICE 1@ $49.00

A rare species from the north west Caucasus, flower color ranges from creamy white to yellows which exceed mlokosewitschii, pistils are ruby red and surrounded by a boss of yellow stamens like most of the species from the caucasus it will tolerate a bit of shade, I consider it one of the very best species peonies.

 

Panicum virgatum 'Heavy Metal' PRICE 1@ $12.00

Always heed the advice on the back of the Hitchhikers guide How much danger can a stiffly upright metallic blue switch crass pose? that really depends on who is wielding the switch.

 

Panicum virgatum 'Rotstrahlbusch'    PRICE 1@ $12.00

Red sunbeam bush, it just doesn’t have the same impact as heavy metal, the only shredding licks that you will get from this is if you accidentally hit it with a weed whacker.

 

Papaver bracteatum ..... PRICE 1@ $12.00

Collected at 1600m west of Semdinli Turkey, Jim Archibald calls them “sumptuous, big Oriental Poppies in crumpled scarlet silk with glossy black centers on bristly 60cm stems” supposedly this was once crossed with some of the annual carnation flowered types but no trace seems to remain of the resulting plants, perhaps someone should re-attempt it.

 

Pardancanda x norrisii 'Sangria' PRICE 1@ $6.50

An asexually propagated selection that is supposedly the result of 15 years of selection, it is nice with large two tone plum purple flowers on dwarf plants, still 15 years, I see stuff at least this nice from almost every seedlot, perhaps I’m missing something, then again we bought it, it’ll probably be a big hit.

 

Pardanthopsis dichotoma PRICE 1@ $8.00

We finally got around to propagating a decent batch of this beautiful Irid. Exotic purplish flowers borne on branching scapes with falls larger than the standards, ivory spotted and striped maroon at the base, flecked purple in the center with the claw striped purple. They open rapidly in the late afternoon, so quickly that you can actually watch them unfurl, although they generally seem to wait until your back is turned; once pollinated the petals twist together into a cool little rope, several open each day for many weeks in mid to late summer.

 

Paronychia chionaea ...... PRICE 1@ $6.50

Piatek’s collection from Ala Dag at 2200m forming close mats of silvery green foliage that clings, starfish fashion, to the contours of the rock, flowers tiny but the hyaline bracts are quite showy producing the typical display of silvery bracts, some consider this a subspecies of kepala.

 

Peganum harmala ............... PRICE 1@ $6.50

Its baaack, a legendary plant very seldom seen in American gardens but revered in Muslim countries; it is supposedly an aphrodisiac and hallucinogen in large doses. Grow it for its ornamental value; we don't suggest you even consider eating it. We want no liabilities for overdose visits to emergency rooms, unwanted children, or being trampled by pink elephants.

 

Pelargonium endlicherianum PRICE 1@ $12.00

The hardiest of the Pelargoniums, tufted plants with pubescent orbicular leaves and carmine red “geraniums” on 10-20cm stems, Mojmir’s dry screes of Ala Dagh at 1700m.

 

Peltandra virginica ....... PRICE 1@ $12.00

A native Bog Arum eaten by the Indians, large club-like seed heads contain a sticky glue that you could use to install kitchen counters. No kidding this stuff is contact cement, it stuck grape sized seeds to our fingers to the point we couldn't sow 'em.

 

Peltoboykinia tellimoides PRICE 1@ $8.00

A nearly monotypic genus there are only two closely related species, tellimoides is a very rare thing confined to a few wooded mountains in Honshu, the similar P. wantanabei is found on Shikoku and Kyushu. A large-leafed woodland saxifrage, foliage is a bit reminiscent of Darmera, however it bears cymes of bell shaped yellow saxifrage flowers on 2-3’ stems in early summer. It has proven to be fully hardy here with no special protection; indeed, for such a rare woodlander it is virtually indestructible.

 

Peltoboykinia wantanabi PRICE 1@ $6.50

Similar to the above, I’m sure you’ll want to nab it.

 

Pennisetum alopecuroides 'Little Honey'   PRICE 1@ $8.00

A variegated sport of the well-known diminutive fountain grass ‘Little Bunny’, unlike its lagomorph namesake I find it rather cute.

 

Penstemon

a genus almost exclusively American, it contains some of the showiest species any gardener could wish for, and in terms of plants not seeds we have the largest selection, we think, in the world. Most are fairly easy to grow, the main problem is die-back, we have been trying to select the most resistant clones and think we have some good ones, including a few rather difficult dwarf western species.

 

Penstemon 'Hoppley's Variegated' PRICE 1@ $6.50

Tall with streaky variegation and light lavender flowers Dan brought it back from the UK.

 

Penstemon 'Red Rocks' ... PRICE 1@ $6.50

A very free blooming Penstemon mexacali hybrid these are from seed and should yield reddish to purple flowered plants.

 

Penstemon 'Winter Frost' PRICE 1@ $5.50

Gnarled shrublets with powdery glaucous foliage and large pink flowers; 'Winter Frost' is one of the most attractive hybrids we grow.

 

Penstemon albertinus .. PRICE 1@ $6.50

A 40cm high woody based plant that ranges from Alberta down into Idaho flower color is typically blue but the species is variable but generally long lived and easy in the garden.

 

Penstemon angustifolius PRICE 1@ $6.50

A striking plant with powder blue foliage and aquamarine flowers, flower color is supposed to be best on alkaline soils.

 

Penstemon barbatus ...... PRICE 1@ $6.50

Rosettes of leathery green basal leaves give rise to 3’ spikes of scarlet red sharks head flowers these are from R.M.R.P. and our local hummingbirds love them.

 

Penstemon barbatus praecox nanus 'Rondo'        PRICE 1@ $6.50

These got more comments than any other Penstemon we grow, compact 40cm plants that bloom most of the summer with flowers that range from fluorescent pink to bright red to clear blue and deep purple

 

Penstemon barrettiae Ratko 99-287 PRICE 1@ $6.50

Ron collected this lovely member of the Erianthera section from above the Klickitat River at 1150’. With age, it develops a thick woody caudex surrounded by glaucous almost sedum like blue gray leaves in an evergreen tuft. Sending up numerous stems of huge rose purple flowers crowded in the top of the 12-18” stems, the contrast is stunning only rupicola can compare; this population throws an occasional white plant.

 

Penstemon californicus PRICE 1@ $8.00

An extremely rare Penstemon form Southern California at altitudes to 7000’; it’s proven durable in ordinary rock garden conditions in Denver, which gives me some hope it will make it here, mats of cinerous puberulent tiny foliage and showy dark purple flowers combine to make it one of the most beautiful Penstemons we have ever grown.

 

Penstemon cardinalis ssp cardinalis             PRICE 1@ $6.50

A spectacular xeriscape plant, with deep scarlet flowers on 30” stems, this is one of the hummingbird pollinated southwestern species and generally easy to grow even in areas of higher rainfall.

 

Penstemon cardwellii ... PRICE 1@ $6.50

A shrubby mat former, with broad evergreen leaves these should be mostly the purple form. One of the best shrubby Penstemons, nice draped over the edge of a trough.

 

Penstemon cardwellii 04 207 PRICE 1@ $6.50

As above but from Ron’s 2004 collections.

 

Penstemon crandallii v atratus PRICE 1@ $6.50

A small mat forming version of crandellii, that Ron collected from the gravelly flats of sagebrush and Gambel Oak in the La Sal Mts E.SE. of Moab at 8320’. It’s in the caespitosi section but the flowers are larger than P. caespitosus dark blue to lavender and scattered profusely over the mats, a choice trough Penstemon.

 

Penstemon crandallii v glabrescens Ratko 99-304            PRICE 1@ $6.50

Ratko’s collections from Arroyo Aguaje de la Petaca in New Mexico at 8225’ where it forms two inch woody based shrublets that spread 4-6” covered in green needle like leaves; lavender blue flowers with yellow staminodes are held up off the foliage, a fantastic plant and reasonably growable.

 

Penstemon cyananthus PRICE 1@ $6.50

The Wasatch Penstemon is spectacular with brilliant blue flowers of unsurpassed intensity and glossy lanceolate leaves Bradshaw found these in Cache Co ut at 8100’

 

Penstemon digitalis Huskers red alba          PRICE 1@ $6.50

Attractive mounds of purple foliage give rise to tall scapes with large clusters of pink buds that open white; this is a popular border species that can serve as an alternate foodplant for checkerspots.

 

Penstemon diphyllus ..... PRICE 1@ $6.50

Native to western Montana and central Idaho with distinctive paired leaves on 18” stems and bluish purple flowers.

 

Penstemon euglaucus ... PRICE 1@ $6.50

Bradshaw’s collections from Linn co or at 3800’ loose mats of glaucous leaves and tall stems carrying whorls of lavender blue flowers.

 

Penstemon hallii ................ PRICE 1@ $6.50

A classic alpine Penstemon, these are from a Bradshaw collection in Park Co co at 11,100’, the compact tufts of foliage are nearly hidden by the short dense scapes of flowers, and for general rock garden use, this is one of the very best species, see photo Rocky Mountain Alpines, the one in Penstemons does not do it justice.

 

Penstemon hallii ................ PRICE 1@ $6.50

A R.M.R.P. collection from the Sangre de Cristo mts at 12,880’ you can never have to many plants of hallii.

 

Penstemon idahoensis ... PRICE 1@ $6.50

Tufted mounds of foliage and brilliant sky blue flowers atop the 6” stems, this is a rare endemnic found only in the Goose Creek watershed in Cassia county and is one of my favorite penstemons.

 

Penstemon laetus roezellii PRICE 1@ $6.50

Deep blue violet flowers, very attractive, 10-16" tall it should be more widely grown.

 

Penstemon linearioides coloradoensis       PRICE 1@ $6.50

This is a favorite dwarf Penstemon, needle-like intense silvery leaves, forming tiny mats small enough for troughs. It never suffers from any dieback and seems very easy for a caespitose Penstemon, this would be a first rank plant even if it never flowered, and the flowers are lovely as well.

 

Penstemon linearioides v. compacta   PRICE 1@ $6.50

The Siskiyou clone, its nice but I still like Fred's better.

 

Penstemon mensarum .... PRICE 1@ $6.50

Growing on Grand Mesa in western Colorado, hence the name, 60cm scapes bearing whorls of beautiful deep blue flowers.

 

Penstemon ovatus ............ PRICE 1@ $6.50

The oval toothed leaves are a given flowers are showy deep blue in a loose inflorescence that rises 2-3’, native to the Cascades, these are from Bradshaw.

 

Penstemon palmeri .......... PRICE 1@ $6.50

The most fragrant of all the Penstemons the enormous baggy pink honey scented flowers sit atop clasp leafed stems to 4’, it is native to the Pinyon Juniper Joshua Tree communities and is an excellent plant for xeriscaping.

 

Penstemon pinifolius 'mercer yellow'           PRICE 1@ $6.50

A small shrubby species with needle like leaves on a compact plants. The low bushes are adorned with spikes of tubular yellow flowers (normally they are crimson scarlet)

 

Penstemon pinifolius 'Magdalina Sunshine'          PRICE 1@ $6.50

An improved version of the above, more and bigger flowers, better habit, bla bla bla.

 

Penstemon procerus tolmiei Ratko 98-458         PRICE 1@ $6.50

Ron’s collections from goat rocks of a very compact form, flowers are anywhere from yellow to violet with many bicolors in dense heads on one inch stems, Rick Lupp’s Hawkeye was selected from this population.

 

Penstemon procerus tolmiei 'Nisqually Cream'            PRICE 1@ $6.50

An unusual creamy white flowered Mark McDonough selection from Mt. Rainier.

 

Penstemon procumbens (caespitosus) 'Claude Barr'            PRICE 1@ $6.50

This is generally listed as caespitosus in the trade however it is more likely a selection of procumbens, (which was once considered a subspecies of crandellii) indeed it differs little from wild type procumbens forming a creeping inch high mat that roots down.

 

Penstemon richardsonii Ratko 97-228 PRICE 1@ $6.50

A compact 6-9” form of this Saccanthera species from the dry rocky creek bed of Waterworks Canyon at 1800’; the deeply dissected leaves turning a bright red in fall. It presents an exquisite and unusual combination of colors unseen in any other Penstemon, the flowers are an eerie blue violet with reflexed lobes of sky blue turning deeper blue in the inflated throat the inside of which is white with deep blue guide lines.

 

Penstemon rydbergii var oreocharis 05-563         PRICE 1@ $6.50

A robust version of rydbergii Ron collected from the Long Valley Caldera at 8875’, well developed mats of dark green lanceolate leaves and whorls of dark blue flowers on 9-12” stems this is one of the most floriferous members of the proceri section. Rydbergii is not drought tolerant and needs considerable moisture to succeed, there are even reports of it growing in standing water.

 

Penstemon tenuis ............. PRICE 1@ $6.50

A slender species native from Arkansas to Texas rosy purple flowers with hardly a beard.

 

Penstemon thompsoniae PRICE 1@ $6.50

A tufted western drylander, thompsoniae ranks with the finest dwarf Penstemons last summer must have reminded them of back home in the Mohave, so many of the choice westerners tend to melt out in our summer humidity, however so far this batch seems tough.

 

Penstemon venustus ...... PRICE 1@ $6.50

the name means beautiful and indeed it is, three-foot spikes with good blue flowers it is more than worthy of garden space.

 

Penstemon virgatus asa-grayi PRICE 1@ $6.50

Named for the wand like (virgate) inflorescences of light bluish purple flowers growing in road cuts and meadows in Colorado and Wyoming, it can be quite showy especially if planted en masse.

 

Perovskia atriplicifolia  PRICE 1@ $8.00

4' Russian Sage semi-woody, light, & airy looking plant.

 

Perovskia atriplicifolia 'Fillagran'     PRICE 1@ $8.00

A cut leaf selection with a little more delicate look.

 

Perovskia atriplicifolia 'Longin'  PRICE 1@ $8.00

A named form that is essentially the same as the type.

 

Persicaria microcephala  'Red Dragon'           Price   $12.00

I know you are expecting Death’s Head Sphinx culture and cannibalism however in this case the plant is better than the sequel, with attractive purple leaves bearing the typical chevron mark. This is supposed to be a non running form, this remains to be seen as does it’s hardiness which seems to be less than impressive it is however a very trendy plant, and will make the rounds in a big way over the next couple of years.

 

Persicaria polymorpha .... Price   $19.00

We crashed the PPA reception; only to be greeted by a strangely familiar woman dressed as Persicaria polymorpha, what does this mean? I have no idea; actually, she didn’t look all that much like Persicaria, although after a few hours at the Blue Coyote the resemblance did improve. A bold alluring statement with masses of white flowers, Persicaria is just the thing for gardens or yuppie bars if not the Bloated Goat and is absolutely fantastic in a Sunny Border.

 

Petalostemon candidum PRICE 1@ $6.50

I have retained the older name Petalostemon to avoid confusion even though it is now known as Dalea candidum, a white prairie clover that grows to 70cm or so.  If you are into the prairie restoration thing, you will love it.

 

Petalostemon purpureum PRICE 1@ $6.50

Also known as Dalea gattingeri it is one of the showiest bush clovers and a great addition to the perennial border.

 

PETASITES HYBRIDUS ‘Ex Dutch’ PRICE 1@ $8.00

Large umbrella-like leaves, rapidly spreading for pondsides, blooms March and April, before the leaves appear (beware often sold as japonicus giganteum).

 

PETASITES HYBRIDUS ‘Ex Jim Briggs’ PRICE 1@ $8.00

Similar to the above, leaves may be slightly smaller but it runs very quickly, a nice Petasites that Jim Briggs brought us; much smaller than the following.

 

PETASITES japonicus ‘giganteum’ Price   $19.00

Another wonder from the Punnett garden, Dick says this elicits lots of “whatinthe-hellisthat” comments in his garden. It simply has to be seen to be believed. A running plant with huge leaves 3-4 ft across and impressive flowers as the leaves are unfurling in spring. Tropical and exotic looking and impressive to say the least, when Dick put it in a wet spot, it hastened back up the hill. Most of the plants sold under this name turn out to be something much smaller, if it is offered for a ridiculously low price it is probably not it, but the Dutch form offered above.

 

Petasites japonicus 'Purpureus' Price   $19.00

The purple leafed version of Petasites, this has been amazingly slow to multiply for us. We bought this back in 1999 from Heronswood and only now do we have barely enough to list. Spring foliage is a deep purple however it greens out considerably during the summer.

 

Petrophytum caespitosum PRICE 1@ $6.50

One of the tiniest of rosaceous shrubs exceeded only by Kelseya, these are from a Bradshaw collection in Johnson Co WY at 8200’. Unlike Kelseya, Petrophytum is a relatively easy to grow calciphile; forming mats 20cm across in 10 years, the silky downy foliage topped with tiny white plumes like a miniature Astilbe or Spirea. A classic plant that deserves a prime place in the garden.

 

peucedanum verticillare PRICE 1@ $6.50

A big Angelica-like plant big umbels of flowers on plants that can reach 3.5m tall!

 

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HOME PAGE | MAIN PERENNIAL PAGE

Ac-Am | An-Ar | As-Au | Ba-Ce | Ch-Cy | Da-Di | Do-Dy | E | F.G | Ha-Hi | Ho-Hy |
I | J.K.L | M.N.O | Pa-Pe | Ph-Pl | Po-Pr | Pt-R | Sa | Sc-Sy | T | U.V.Y.Z

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