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■(TB) 'Idaho Centennial'

1962, Smith

'Idaho Centennial' (Eva Smith, R. 1961). Seedling# 59-344. TB, 38" (97 cm), Midseason bloom. Color Class-Y4W, Standards gold; falls white with gold border; rich orange beard. 'Palomino' X ('Thotmes III' x 'Sunray'). Smith's Iris Gardens 1962. Honorable Mention 1965.

See below:
idahocentennial9.JPGidahocentennial90.JPG

References:

From Fleur De Lis Gardens catalog 1963: IDAHO CENTENNIAL (E. Smith '62) M. 38 in. Palomino x (Thotmes 3rd x Sunray). A different and very lovely iris with excellent form and wide, slightly laced petals. Stands are iridescent, satiny white and the falls are white with a smooth overlay of pale orchid and a border of gold extending upto a fat orange beard. Choice. 15.00.
Historic Iris Preservation Society gallery link.
 

Culture

Quick Summary of Cultural Directions

FURTHER CULTURAL INFORMATION Sort
Hardiness Zones 4-8 for most varieties, Some cultivars tolerate colder, others tolerate warmer zones (please comment in comment box with your location if this cultivar grows well in zone 3, 4, 9, or 10.)
Exposure Prefers full sun for optimal performance, may still bloom in half-day shade
Water: Prefers well drained good garden soil, Tolerant of dry conditions in established plants, Intolerant of swampy conditions.
PH Prefers Neutral to basic solis 6.1 to 8.5, quite toleranr of more extreme conditions
Fertilizer Prefers rich conditions on relatively inorganic soils.

-- BobPries - 2011-03-07

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Your Observations Are Valued. Please make note of bud count, branching, purple based foliage and bloom time, etc. Because these are affected by climate, note date, year and geographic location and write these and other comments in the comment box below.

 

-- BobPries - 2011-03-07
I Attachment Action Size Date Who Comment
idahocentennial9.JPGJPG idahocentennial9.JPG manage 181 K 13 Feb 2024 - 13:30 TerryLaurin Photo by Delane Langton-Eagle Ridge Iris Gardens
idahocentennial90.JPGJPG idahocentennial90.JPG manage 169 K 13 Feb 2024 - 13:30 TerryLaurin Photo by Delane Langton-Eagle Ridge Iris Gardens
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Topic revision: r11 - 10 Jun 2024, DougChyz
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