Iris graeberiana

Iris graeberiana is a species in the genus Iris, in the subgenus of Scorpiris. It is a bulbous perennial.

Iris graeberiana
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Iridaceae
Genus: Iris
Subgenus: Iris subg. Scorpiris
Section: Iris sect. Scorpiris
Species:
I. graeberiana
Binomial name
Iris graeberiana
Synonyms[1]
  • Juno graeberiana (Sealy) Soják
  • Juno graeberiana (Sealy) Rodion.

It was named after Paul Graeber (a plant collector who also collected Iris hoogiana and Tulipa ostrowskiana for the Dutch Van Tubergen company).[2][3]

It was first published in Botanical Magazine 167: t. 126 by Sealy in 1950.[4]

Iris graeberiana is an accepted name by the RHS.[5]

It is hardy to USDA Zone 5-8.[6]

It can be seen growing in Le Grand Clos botanical garden in Bourgueil, France.[7]

Habit

In late spring[8](April)[9] it has between 4-6 flowers per stem and reaches a maximum height of 45 cm (18") tall.[10]

It has pale silvery mauve flowers.[10] It also comes in blueish-lavender,[8] or blue-violet shades.[11] The flowers are 6–8 cm (2.5–3 in) wide with a wavy,[11] white crest on each fall.[8] Which is surrounded by a pale, boldly veined zone.[11]

The white margined leaves, have glossy mid-green tops, but with greyish green bottoms, which are scattered along the stem.[8] The leaves grow to approximately 20 cm tall at flowering time, then they extend to twice this. They are between 1.5-3.5 cm wide.[11]

It is known as one of the more vigorous species,[10] therefore is easier to grow the others in the subgenus.[8]

They are best grown in well-drained soils [12] in open, stony places or an Alpine house, but some growers recommend outside culture if sheltered from heavy summer rains.[11]

Native

It is native to Tajikistan[13] and Turkestan (parts of the former republic of USSR) and Central Asia.[10]

Known hybrids
  • Iris graeberiana 'White fall' [14]

It is thought to have been bred by crossing Iris graeberiana with Iris magnifica.[6]

  • Iris graeberiana 'Yellow fall' [15]
  • Iris graeberiana 'Dark Form'

A more hardy plant but with smaller darker flowers. It is similar to Iris zenaidae but with smaller flowers.[16]

References
  1. "Juno graeberiana". www.theplantlist.org. 23 March 2012. Retrieved 21 August 2014.
  2. Austin, Claire (2005). Irises: A Gardener's Encyclopedia. Timber Press, Incorporated. ISBN 978-0881927306. OL 8176432M.}
  3. "Tulipa ostrowskiana". rareplants.co.uk. Retrieved 23 August 2014.
  4. "Iris graeberiana". apps.kew.org. Retrieved 21 August 2014.
  5. "Iris graeberiana". www.rhs.org.uk. Retrieved 21 August 2014.
  6. "Iris graeberiana". www.signa.org (Species Iris Group of North America). Retrieved 23 August 2014.
  7. "irisbotanique".
  8. Brickell, Christopher, ed. (1996). RHS Encyclopedia of Garden Plants. London: Dorling Kindersley. p. 522. ISBN 978-0-7513-0436-7.
  9. "How to grow Iris". www.backyardgardener.com. Retrieved 23 August 2014.
  10. Cassidy, G.E.; Linnegar, S. (1987). Growing Irises (Revised ed.). Bromley: Christopher Helm. pp. 145–146. ISBN 0-88192-089-4.
  11. "Iris graeberiana". encyclopaedia.alpinegardensociety.net. Retrieved 23 August 2014.
  12. "flag". Retrieved 23 August 2014.
  13. "Tajikistan". lntreasures.com. Retrieved 23 August 2014.
  14. "Autumn List (G-L)". www.westonbirtplants.co.uk. 2007. Retrieved 19 August 2014.
  15. "PlantFiles: Juno, Scorpiris". Retrieved 23 August 2014.
  16. "Juno Irises (A-l)". www.pacificbulbsociety.org. Retrieved 23 August 2014.

Other sources
  • Walter Erhardt, Erich Götz, Nils Bödeker, Siegmund Seybold: Der große Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
  • Mathew 1981 (J. McGary, 28-APR-04)

Media related to Iris graeberiana at Wikimedia Commons Data related to Iris graeberiana at Wikispecies

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