Penstemon hirsutus 'Alba'       0

- Growing Penstemons, Dale Lindgren and Ellen Wilde. 2012. ISBN
- Seeds of woody plants in the United States, Schopmeyer Clifford Scharff and others. 1974 pag. 574-575. Address
- Annals of the Carnegie Museum, Carnegie Museum and Carnegie Museum of Natural History. 1937. Address
- Contributions from the United States National Herbarium v.20, United States. National Herbarium. 1917. Address
- Contributions from the United States National Herbarium v.29, United States. National Herbarium. 1957. Address
- Diploid Hybrid Speciation in Penstemon (Scrophulariaceae), Wolfe, Andrea and Xiang, Jenny and Kephart, Susan. Proceedings of the National Academy of Sciences of the United States of America 1998 Vol. 95 pag. 5112-5. DOI
- Flora of North America. Penstemon
- Los penstemons de México. II. Penstemon hartwegii, Penstemon gentianoides y sus aliados, Straw, Richard M. Botanical Sciences 1962 Vol. 27 pag. 1-36. DOI
- Phylogeny, taxonomic affinities, and biogeography of Penstemon (Plantaginaceae) based on ITS and cpDNA sequence data, Wolfe, Andrea and Randle, Christopher and Datwyler, Shannon and Morawetz, Jeffery and Arguedas, Nidia and Diaz, Jose. American journal of botany 2006 Vol. 93 pag. 1699-713. DOI
- Studies in Penstemon. II. The Section Hesperothamnus, Keck, David D. Madroño; a West American journal of botany 1936 Vol. 3 pag. 200-219. Address
- Studies in Penstemon. IV. The Section Ericopsis, David D. Keck. Bulletin of the Torrey Botanical Club 1937 Vol. 64(6) pag. 357-381. JStor
- Studies in Penstemon. V. The Section Peltanthera, David D. Keck. The American Midland Naturalist 1937 Vol. 18(5) pag. 790-829. JStor
- Studies in Penstemon. VI. The Section Aurator, David D. Keck. Bulletin of the Torrey Botanical Club 1938 Vol. 65(4) pag. 233-255. JStor
- Studies in Penstemon. VII. The Subsections Gairdneriani, Deusti, and Arenarii of the Graciles, and Miscellaneous New Species, David D. Keck. The American Midland Naturalist 1940 Vol. 23(3) pag. 594-616. JStor
- Systematics of Penstemon section Ericopsis, a group of plant species native to the Intermountain West, Wenzel, Aaron. 2016. Address
- The Californian Penstemons, Everett, Percy C. Aliso: A Journal of Systematic and Floristic Botany 1950 Vol. 2(2) pag. 155-198. Address
- The genus Penstemon: Taxonomy as related to performance in landscape applications, Love Stephen L. Report of the Intermountain Native Plants Cooperative 2013 pag. 13. Address
- Report of the Intermountain Native Plants Cooperative, Plants, Intermountain Native. Address

Biologisch type: plant
Vorstbestendigheid: -15ºC
Bladkleur: donker groen
Bloemkleur: wit
Reproductiemodus: hermafroditisme plant die zowel de mannelijke als de vrouwelijke geslachtsorganen heeft

Specificaties voor het Middellandse-Zeegebied
Volwassen afmeting (h x b): 0,3m x 0,3m
Zon blootstelling: vol zon (Zon-uren: >6h
Gebladerte: bladhoudend
Groei: snel
Bloeitijd van Mei tot Oktober

Specifieke informatie voor onze tuin
Plant substraat: 20%Compost+40%Klei+40%Zand
Besproeien: 3x per week pH 6,5
Logische volgorde van containers voor: Vaste planten; bosbouwplaat 8cm, 1L pot, 2L bospot, 6L pot, 55L pot
Voortplanting wordt gedaan door wortelverdeling

LENTE Bewaar in de koelkast at 4°C onder droge omstandigheden. Week de zaden in water bij kamertemperatuur gedurende 12h. Bewaar in de koelkast at 4°C gedurende 6 weeks in vochtig substraat. Zaai de zaden op 2mm diepte in de Drainerende zaaigrond tussen 15-20°C. Tijdens het ontkiemen het substraat vochtig en in het daglicht houden. De zaden ontkiemen in 2-3 weken. De levensvatbaarheid van het zaad, bewaard onder goede omstandigheden, is 5 jaren.
Het gemiddelde zaadgewicht is 10000,0 per gram (0,0001g).

Ontkiemings referenties
- Growing Penstemons, Dale Lindgren and Ellen Wilde. 2012. ISBN


Ontkiemings referenties for het genre
- Growing Penstemons, Dale Lindgren and Ellen Wilde. 2012. ISBN
- Seeds of woody plants in the United States, Schopmeyer Clifford Scharff and others. 1974 pag. 574-575. Address
- Influence of seed stratification and seed age on emergence of Penstemon, Lindgren, Dale T and Schaaf, Daniel M. HortScience 2004 Vol. 39(6) pag. 1385-1386. Address
- Seed germination theory and practice, Deno Norman C. 1993. Address
- Seed Germination timing patterns in intermountain Penstemon (Scrophulariaceae), S. E. Meyer and S. G. Kitchen and S. L. Carlson. American Journal of Botany 1995 Vol. 82(3) pag. 377-389. JStor
- USDA Forest Service's Woody Plant Seed Manual, John K. Francis and Craig D.Whitesell. 2008. Address