Denomination: 'USPHLO1M'
Trade name: Intensia Pink
Botanical Name: Phlox
Applicant/Holder: Plant 21 LLC
32149 Aquaduct Road
Bonsall, California
United States of America
Breeder: Ushio Sakazaki, Shiga, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2006-03-21
Application Number: 06-5380
Grant of Rights Date: 2008-08-29
Certificate Number: 3303
Date rights surrendered: 2014-08-29

Variety Description

Variety used for comparison: 'USPHL304' (Intensia Lavender Glow Improved)

Summary: The plants of 'USPHLO1M' are shorter than 'USPHL304'. 'USPHLO1M' has a longer internode length than 'USPHL304'. The flower colour for 'USPHLO1M' is blue pink on the upper side while it is violet for the reference variety. 'USPHLO1M' has a large pink and white star pattern of purple red alternating with white splashes while 'USPHL304' has a star pattern composed of violet at the base of the petal with violet bissecting adjacent white zones.


PLANT: annual, semi-upright bushy to spreading

LEAF: subulate shape, glandular stickiness, medium pubescence of upper side, medium pubescence of lower side, medium green

CYME: flat to dome shape, compound
FLORET: round, tricolour, pink colour group
PETAL: cuspidate shape apex, eye colour pattern, blue pink (fading with age) apical zone on upper side, blue pink basal zone on upper side, large pink and white star pattern of purple red alternating with large white splash markings on upper side, white overlaid with streaks of blue pink on the apical zone on lower side, white basal zone on lower side
PETAL MARGIN: moderately overlapping, very weak fringe

Origin & Breeding History: The Phlox variety 'USPHLO1M' was developed by the breeder, Ushio Sakazaki. The variety was discovered as a mutation of the variety 'USPHLO1' on April 20, 2004, in Aichi, Japan. The selection was based on plant vigor, continuous flowering, and superior summer performance. The new variety was first propagated by vegetative cuttings on June 8, 2004, in Aichi, Japan.

Tests & Trials: PBR trials were conducted in a polyhouse during the spring of 2007 in St. Thomas, Ontario. Trials included 15 plants of the candidate and reference variety. Rooted cuttings were transplanted into 15 cm pots on May 1, 2007. Observations and measurements were taken from 10 plants of each variety on June 26, 2007. All colour measurements were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'USPHLO1M' with reference variety 'USPHL304'

Plant height (cm)

mean 15.3 19.2
std. deviation 2.29 2.55

Stem internode length (cm)

mean 3.1 2.4
std. deviation 0.19 0.15

Petal colour (RHS)

upper side-apical zone 67C fading with age N78B-C
upper side-basal zone 67C N78C
upper side-markings N66B alternating with large white splashes N78A at base with N80B bisecting adjacent white zones
lower side-apical zone white overlaid with streaks of N66D 76C-D overlaid with streaks of 76A
lower side-basal zone white white/76C-D

Click on image for larger view
Phlox: 'USPHLO1M' (left) with reference variety 'USPHL304' (right)

Click on image for larger view
Phlox: 'USPHLO1M' (left) with reference variety 'USPHL304' (right)

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