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■(TB) 'Bicentennial'

1976, Ghio

'Bicentennial' (Joseph Ghio, R. 1975). Seedling# 70-35Y. TB, 40" (102 cm), Late midseason bloom. Standards bright gold; falls white, laced gold edge; yellow beard. 'Peace Offering' sibling X 'Ponderosa'. Bay View Gardens 1976. Honorable Mention 1977; Judges' Choice 1978; Award of Merit 1979.

See below:



Awaiting original catalog description


Quick Summary of Cultural Directions

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 - 21 Apr 2019

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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.


-- RolandDejoux - 2009-12-22
I Attachment Action Size Date Who Comment
Bicenntenial03.JPGJPG Bicenntenial03.JPG manage 67 K 11 Aug 2021 - 15:10 Main.TLaurin Photo by Mary Hess-Bluebird Haven Iris Garden
Bicentennial.JPGJPG Bicentennial.JPG manage 46 K 31 Jan 2011 - 05:17 IrisP  
Bicentennial01.JPGJPG Bicentennial01.JPG manage 79 K 20 Nov 2014 - 16:20 Main.TLaurin Photo by Mary Hess-Bluebird Haven Iris Garden
bicentennial01.JPGJPG bicentennial01.JPG manage 249 K 24 May 2020 - 15:45 Main.TLaurin Photo scanned from the 1997 Bay View Gardens catalogue by Terry Laurin
bicentennial02.JPGJPG bicentennial02.JPG manage 95 K 17 Apr 2020 - 21:18 Main.TLaurin Photo scanned from the 1970-80 Cordon Bleu Farms catalog by Terry Laurin
bicentennial1.jpgjpg bicentennial1.jpg manage 40 K 22 Nov 2018 - 03:44 Main.TLaurin Photo by Iriszkert Szasz-Hungary.
Topic revision: r23 - 25 Jul 2023, Harloiris
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