Denomination: 'USPHLO3M'
Trade name: Intensia Star Brite
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: 06-5381
Grant of Rights Date: 2008-08-29
Certificate Number: 3304
Date rights surrendered: 2014-08-29

Variety Description

Variety used for comparison: 'USPHLO3' (Intensia Neon Pink)

Summary: 'USPHLO3M' has a round, bicolour floret in the white and purple-red colour group while 'USPHLO3' is star shaped and tricoloured in the purple-red colour group. The fringe on the petal margin is very weak for 'USPHLO3M' while it is moderate for 'USPHLO3'. 'USPHLO3M' has a star colour pattern while 'USPHLO3' has an 'eye' colour pattern. The colour of the apical zone of the upper side is white for 'USPHLO3M' while it is purple for 'USPHLO3'. The markings on the upper side of 'USPHLO3M' are purple in a star pattern while they are redder than purple red in a v-shape radiating from the base for 'USPHLO3'.


PLANT: annual, upright- bushy

LEAF: linear/subulate and lanceolate shape, glandular stickiness, strong pubescence of upper side, medium pubescence of lower side, medium green

CYME: dome shape, compound
FLORET: round, bicolour, white and purple-red colour group
PETAL: cuspidate shape apex, star colour pattern, white apical zone on upper side, purple star pattern markings on upper side, white apical zone on lower side, light blue violet markings on basal zone on lower side
PETAL MARGIN: moderately overlapping, very weak fringe

Origin & Breeding History: The Phlox variety 'USPHLO3M' was developed by the breeder, Ushio Sakazaki. The variety was discovered as a mutation of the variety 'USPHLO3' 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 27, 2007. All colour measurements were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison table for 'USPHLO3M' with reference variety 'USPHLO3'

Petal colour (RHS)

upper side-apical zone whiter than 155C N74A-B
upper side-basal zone N74B redder than N66A
upper side-markings N74B 86B with star redder than N66A radiating from base
lower side-apical zone 155C marking white streaked with N80C
lower side-basal zone 76C marking N/A

Click on image for larger view
Phlox: 'USPHLO3M' (left) with reference variety 'USPHLO3' (right)

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