■(TB) 'Advance Guard'
(Sidney B. Mitchell
, R. 1945). Seedling M-5-38. TB. Early bloom. Color Class-W2M. Seedling plicata x seedling. Mitchell, Salbach 1945
| From Carl Salbach catalog 1946: ADVANCE GUARD. $4.00. White ground plicata, distinctly edged deep lavender. Large, full, ruffled flower on an exceptionally tall and well-branched stem. Very floriferous, good grower, graceful and refined in habit. Distinct from other white ground plicatas.
| ADVANCE GUARD: Tall lavender and white plicata, well branched and flowers of good form. Calif. “Varietal Comments” The Bulletin of the American Iris Society, No. 103, (October 1946): 62.
| From AIS Bulletin 161. April 1961: To immediately dispel any thoughts of sorcery invoked to bring about the one original basic change from which all forms of horned iris have since evolved, let me explain at once the simple manner in which the first horned iris came about. The rudimentary beginnings of a horn first appeared among the seedlings of the late Sydney B. Mitchell, at Berkeley, California. The cause is uncertain, but most likely the first slight projection at the end of the beard represented a mutation brought about by the forces of nature, possibly radiation of some kind. And if so, these space-age iris may perhaps trace their origin right back to bombardment with radiation from interstellar space. Be that as it may, the fact remains that it was in May, 1944, in the garden of Professor Mitchell, that I first observed this phenomenon on his ruffled plicata seedling No. M-5-38. This was two years before I issued my first iris catalog, and before I even had an iris garden. As Professor Mitchell was not interested in working with this apparent sport, he kindly allowed me to use it in my first iris hybridization experiments. I selfed it and crossed it with eight of his other plicata seedlings, none of which had any signs of horns. The resultant seeds were sowed that fall in my first iris seedbeds at Placerville, in the mountains of northern California. Thus began my initial efforts to intensify and extend the horns sufficiently to become decorative features. Most of the seedlings from these crosses bloomed in 1946, and among them all there was only one that had the beginnings of horns. This came from one of the 37 seeds resulting from the selfing of Mitchell's No. M-5-38, which he introduced in 1945 as ADVANCE GUARD. Lloyd Austin 'Controlled Evolution of the Horned, Spooned, and Flounced Iris'.
| Sold in the following catalogs: Salbach 1946; Tell 1947.
Quick Summary of Cultural Directions
| FURTHER CULTURAL INFORMATION
| 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.
- 21 Apr 2019
*Please do not enter images that are not your own without owners' permission, this is against Wiki policy*
"Although the Encyclopedia is free to all, it is supported by Emembership in AIS, If you would like to help sustain this reference, for $15 you can become an Emember, click here
Interested in Tall Bearded Iris?
Please visit the: Tall Bearded Iris Society
Your Observations Are Valued. Interested in Historic Irises ?
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.
Please visit the: Historic Iris Society