See Show Calender


■(TB) 'Son Altesse Sérénissime'

2020, Cosi

'Son Altesse Sérénissime' (Christine Cosi, R. 2020). Seedling 1611/01. TB, 36" (92 cm), Late midseason bloom. Dark purple (RHS 93A) self; beards based dark purple, tipped bronze. 'Blackalicious' X 'Watercolor Print'.

See below:
Photo Christine Cosi, France - 2021Photo by Christine Cosi-Iris en Perigord- France


See: IRIS et BULBEUSES n°170, 2020, p. 44.


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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Interested in Tall Bearded Iris? Please visit the: Tall Bearded Iris Society website.

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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.

Interested in French irises ? Please visit: Société Française des Iris et plantes Bulbeuses - SFIB | website (french language).


-- BobPries - 2011-03-07
I Attachment Action Size Date Who Comment
Son Altesse Sérénissime1.jpgjpg Son Altesse Sérénissime1.jpg manage 557 K 05 Nov 2021 - 21:16 Main.CCosi03 Photo Christine Cosi, France - 2021
son-altesse-serenissime.jpgjpg son-altesse-serenissime.jpg manage 77 K 01 Nov 2020 - 17:14 AlainFranco Photo by Christine Cosi-Iris en Perigord- France
Topic revision: r8 - 19 Nov 2022, AlainFranco
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