Denomination: 'ROBPWPUR'
Trade name: Luscious Grape
Botanical Name: Lantana montevidensis
Applicant/Holder: Roberson, Robert J.
31706 East Pink Hill Road
Grain Valley, Missouri
United States of America
Breeder: Robert J. Roberson, Grain Valley, United States of America
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2007-03-19
Application Number: 07-5790
Grant of Rights Date: 2009-09-23
Certificate Number: 3637
Date rights surrendered: 2016-09-23

Variety Description

Variety used for comparison: 'Trailing Purple'

Summary: The shape of the base of the leaf blade is cuneate for 'ROBPWPUR' while it is cordate for 'Trailing Purple'. In comparison to 'Trailing Purple', 'ROBPWPUR' has denser pubscence on the lower side of the leaf blade and darker violet main colour on the upper side of the flower.


PLANT: semi-erect growth habit, medium height
STEM: moderate pubescence

LEAF BLADE: short, very narrow, ovate, acute apex, cuneate base, crenate margin, medium green on upper side, moderate pubescence on upper side, moderate to dense pubescence on lower side
PETIOLE: very short to short

PEDUNCLE: long to very long
INFLORESCENCE: located both in axillary and terminal positions, small to medium diameter, dome shaped profile, contains flowers of two colours
FLOWER: very short to short, medium to broad, upper side of newly opened and mature flowers is violet with white surrounding eye, eye has yellow centre
COROLLA LOBES: arrangement is not touching, absent to slightly recurved along longitudinal axis, weak undulation of margin

Origin & Breeding History: 'ROBPWPUR' is a product of a planned breeding program developed by the plant breeder, Robert J. Roberson, in Grain Valley, Missouri, U.S.A. It was discovered in July 2002 as a naturally occuring branch mutation of Lantana montevidensis variety 'Alba'. 'ROBPWPUR' was selected based on its flower colour, foliage colour, trailing plant growth habit and production characteristics.

Tests & Trials: Trials for 'ROBPWPUR' were conducted during the spring of 2008 at BioFlora Inc. in St. Thomas, Ontario. The trial included a total of 15 plants per variety. All plants were grown from rooted cuttings and transplanted into 15 cm pots on May 13, 2008. Measured characteristics were based on measurements taken from 10 plants or parts of plants of each variety on July 4, 2008. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison table for 'ROBPWPUR' with reference variety 'Trailing Purple'

Main colour of upper side of flower (RHS)

  'ROBPWPUR' 'Trailing Purple'
newly open and at maturity N80B 77C with 77B veins

Click on image for larger view
Lantana: 'ROBPWPUR' (left) with reference variety 'Trailing Purple' (right)

Click on image for larger view
Lantana: 'ROBPWPUR' (left) with reference variety 'Trailing Purple' (right)

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