Mike’s New Blog is PA Plantings

begining  August 2007

 

Zauschneria latifolia v. garrettii

DRY SAND BEDS: Have been used and described by Prof. Norman Deno for many years. In "Rocky Mountain Alpines", the wonderful book from the 2nd Interim International Rock Garden Plant Conference in Boulder Colorado in June of 1986 (Timber Press, Portland Oregon) Prof. Deno gave a very good description of why and how to do a sand bed as a way of growing dryland and desert plants in humid climates. Based on the theory that dryland plants are not adapted to much fungal stress in their native habitat. Professor Deno feels that keeping the surface of the ground free of organic material and as dry as possible will reduce the struggle these plants have to survive our hot and muggy summers as well as our damp Autumns, Winters and Springs! Pure builders sand (the kind used to make concrete) is a perfect "soil" for this purpose. A layer of sand 8 to 16 inches works very well for allowing rain water to quickly drain away and for quick drying. The lack of organic mater prevents mold and fungus from getting a foothold on susceptible plants. The fewer fungal attacks the drylanders have to fight off the better the chance of survival they have. I will describe the building of the three sandbeds we have in more detail with the pictures below.

Plant list and some pictures of plants in our sand beds.

 

Dry Sand Bed #1

Dry Sand Bed #2

Dry Sand Bed #3

 

Sand Bed Plant List:

Some good rock garden plants which we have growing in our sandbeds here in southeastern Pennsylvania are listed below. There are links to pictures of a few of the plants below.

  • Acantholimon acerosum, A. araxanum, A. glumaceum, A. ulicinum (syn A. androsaceum)
  • Achillea ex `King Edward'
  • Aethionema oppositifolium (syn Eunomia oppositifolia)
  • Alyssum caespitosum , A. propinquum - Nice tiny little species.
  • Arabis androsacea A. bryoides
  • Arctostaphylos uva-ursi
  • Arenaria hookeri, A.. saxosa (n.v., looks a lot like A. montanum), A. pseudacantholimon (n.v.), A. stellariana, A. tetraquetra, A. t. var granatensis (scorches some in the summer)
  • Armeria juniperifolia (syn A. caespitosa), A. girardii (syn A.setacea)
  • Artemisia frigida
  • Asperula gussonii ( AGS Encyc. says it should have bluish foliage mine is bright green do I have A. nitida? I do water this one occasionally I'm not sure if it really needs it.)
  • Bruckenthalia spculifolia
  • Calluna vulgaris `Dainty Bess, C. v. `Minima C. v.`Mrs. Ronald Gray
  • Cheilanthes fendleri, Cheilanthes xintertexta - (C. xintertexta is probably misnamed)
  • Coradina verticillata
  • Cowania mexicana
  • Delosperma aberdeenense, D, cooperi, D.macei (n.v.) and D. nubigenum (sm. yellow flowers)
  • Dianthus freynii, D. petraeus ssp noeanus (syn D. noeanus), D. simulans
  • Draba cappadocica, D. densifolia, D. rigida imbricata (how do I tell this from D bryoides?), D. rosularis
  • Echinocerus triglochidiatus, E. reichenbachii, E. viridiflorus
  • Ephedra frustillata, E. fedtschenkoi, E. minima, E. minuta, E. sinica
  • Erigeron aureus, E. compositus, E. elegantulus, E. scopulinus, E. simplex,
  • Eriogonum caespitosum, E. douglassii, E. ericifolium var pulchrum, E. jamesii, E. jamesii var flavescens, E. kennedyi var austromontanum, E. kennedyi var alpigenum, (E. ovalifolium v. nivale and E. o. v. purpureum have lived thriugh two years at most), E. strictum var proliferum, E. umbellatum, E. umbellatum var porteri (see the Eriogonum pages for pictures and info. about these great plants)
  • Erysimum kotschyanum
  • Genista `Vancouver Gold', G. sylvestris (syn G. dalmatica)
  • Globularia cordifolia
  • Gypsophila aretioides (2 flowers in 1996), G. tenuifolia
  • Helichrysum sp. (hasn't bloomed yet may be H. splendidum)
  • Hudsonia ericoides (none lived more than 3 years, I will keep trying.)
  • Ipheion uniflorum
  • Ipomopsis aggregata (This seems to be monocarpic for me, I keep starting seed from the seedexes.)
  • Leptospermum humifusum (a hardy Tasmanian!)
  • Lesquerella alpinum, L. arizonica , L. kingii
  • Lewisia nevadensis , L. pygmaea, L. rediviva
  • Origanum libanoticum
  • Papaver julicum (n.v.) nice white flowers, P. kluanense (is this misnamed do I really have P. miyabeanum? I am trying to find out.) Both these are growing in the damper lower end of the 3rd sandbed. P, ruprifragum (maybe actually P.atlanticum, 10 - 12 inches ( 25 - 30 cm) tall with medium orange flowers.
  • Paronychia sessiliflora
  • Penstemon angustifolius, P. aridus, P. barbatus, P. barbatus (yellow form), P. caespitosus, P. cardinalis, P. caryi, P. davidsonii, P. eriantherus, P. fruticosus, P. hyb. (purple, from P. barbatus + ?), P. laricifolius var laricifolius, P. laricifolius var exiliifolius, P. linarioides v. coloradensis,P. jamesii, P. kunthii, P. neomexicana, P. palmeri, P. pinifolius, P. procerus v. tolemei, P. secundiflorus, P. strictus, P. utahensis, P. virens
  • Petrophytum caespitosum, P. hendersonii
  • Phlox `Pink star', P. `Schneewitchen', P. `Tamanongelei', P.diffusa, P. hoodii, P. pulvinata, P. `Tiny Bugles'
  • Physaria alpestris
  • Pinus sylvestris `Hillside creeper'
  • Pterocehpalus pinardii
  • Ptilotrichum spinosum `Roseum'(syn Alyssum spinosum `Roseum')
  • Rosularia 4 or 5 species
  • Sempervivum many varieties ( good for between rocks to hold back the sand in the terraces of sloped sand beds)
  • Teucrium marum Thymus neiceffii, T.`Doretta Klaber'
  • Townsendia exscapa, T. incana, T. jonesii, T. parryi, T. rothrockii
  • Veronica bombycina var frederyana (var. n.v.), V. liwanensis, V. oltensis
  • Viola pedata v.concolor and v. bicolor
  • Vitalliana primuliflora (recovering from severe vole attack winter before last)
  • Yucca harrimanae
  • Zauschneria latifolia v. garrettii (Syn. Epilobium canum ssp. latifolia v. garrettii) This is a nice plant that blooms in August - September and it is a hummingbird pollinated plant. This plant is grown from NARGS Seed. The seed was collected in southwestern Wyoming so this "California Fuschia" is quite hardy. This plant is the best one of the 3 seedling I got from that batch of seed.

n.v. = name not verified.

If you can supply any information on the validity of these names please e-mail us at: mslater@voicenet.com

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