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■(TB) 'Radiant Beam'

1969, Olso

'Radiant Beam' (Marvin Olson, R. 1968). Seedling# 66-2A. TB, 38" (97 cm), Midseason to late bloom. Standards aureolin yellow (Wilson 3/3); falls aureolin yellow (3/1) at haft area, balance white. 'Arctic Flame' X 'Marshmallow'. Olson 1969. High Commendation 1967; Honorable Mention 1971.

See below:
IMG 0082.jpgradiantbeam01.JPG


From AIS Bulletin #193 April 1969 Introducing RADIANT BEAM. Sdlg. 66-2A. TB. (Arctic Flame X Marshmallow), Star attraction in my garden the past two seasons. Clean medium yellow closed standards. Wide semi-flared falls are pearly white with deep yellow at the haft area and upper edges of falls, matching beard. Large, nicely proportioned very ruffled and fluted blooms are ideally spaced on 38' heavy stalks. Leather-like substance defies adverse weather. A robust grower and good increaser; has wide deep green foliage. Fertile both ways. What breeding potential!! M-L. HC'67. $25.00. Marvin Olson.
RADIA T BEAM (M. Olson '69), pale yellow standards, near white falls with a distinctive pure yellow beard and haft blending smoothly on either side. Add some ruffles and a bit of lace for a standout combination. (Jendel, 1970). A Real Challenge. Bulletin of the American Iris Society, 199(October 1970), 13.


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.

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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.


-- Main.RPries - 2011-03-07
Topic attachments
I Attachment Action Size Date Who Comment
IMG_0082.jpgjpg IMG_0082.jpg manage 283 K 22 Dec 2018 - 02:02 Main.davepote Photo by David Potembski, My Garden 2018, Finksburg, MD
radiantbeam01.JPGJPG radiantbeam01.JPG manage 193 K 16 Apr 2016 - 02:26 Main.TLaurin Photo by HIPS Archives
Topic revision: r10 - 29 Apr 2021, Harloiris
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