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■(TB) 'Sub-Zero'

2015, Van Hook

'Sub-Zero' (John Van Hook, R. 2014) Seedling# VV-01-V-02. TB, 37" (94 cm). Midseason bloom. Ice blue-white self; beards white, tips yellow; variegated and purple based foliage; slight fragrance. 'Canadian Streaker' X 'Little John'.

See below:

* * References
Sub-Zero KWW.jpgsub01.JPGsub02.JPGsubzero01.JPGSUBZERO01.jpgSUBZERO02.jpg
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References:

Awaiting original catalog description
 
 

Culture

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.
FURTHER CULTURAL INFORMATION Here

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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
SUBZERO01.jpgjpg SUBZERO01.jpg manage 106 K 31 Aug 2018 - 02:41 TerryLaurin Photo by Klaus Burkhardt- Iris Schwertilienoase-Germany
SUBZERO02.jpgjpg SUBZERO02.jpg manage 95 K 03 Apr 2021 - 12:05 TerryLaurin Photo by Klaus Burkhardt- Iris Schwertilienoase-Germany
Sub-Zero_KWW.jpgjpg Sub-Zero_KWW.jpg manage 48 K 25 Jan 2017 - 01:05 Main.KWalker Photo by Ken Walker; Mid-America Garden, Brooks, OR; AIS 2015 Convention
sub01.JPGJPG sub01.JPG manage 7 K 23 Feb 2015 - 14:55 TerryLaurin Photo by Bruce Filardi-International Iris
sub02.JPGJPG sub02.JPG manage 71 K 23 Feb 2015 - 14:57 TerryLaurin Photo by Bruce Filardi-International Iris
subzero01.JPGJPG subzero01.JPG manage 64 K 11 Jul 2015 - 02:43 TerryLaurin Photo by K. Brewitt at 2015 AIS Convention
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Topic revision: r10 - 03 Apr 2021, Harloiris
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