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Denomination: 'Meidrifora'
Trade name: Coral Drift
Botanical Name: Rosa
Applicant/Holder: The Conard-Pyle Company
8 Federal Road, Suit 6
West Grove, Pennsylvania
United States of America
Breeder: Alain Meilland, Meilland International, Le Luc en Provence, France
Agent in Canada: Variety Rights Management
475 County Road 18
R.R. #2
Oxford Station, Ontario
K0G 1T0
Tel: 613-258-9015
Application Date: 2010-05-20
Application Number: 10-6988
Grant of Rights Date: 2014-09-17
Certificate Number: 4871
Grant of Rights Termination Date: 2032-09-17

Variety Description

Varieties used for comparison: 'Noala' (Flower Carpet Coral) and 'Meiggili'

Summary: The young shoot of 'Meidrifora' has weak intensity of anthocyanin colouration while that of both reference varieties have no anthocyanin colouration. The leaf blade of 'Meidrifora' is medium sized while that of 'Noala' is small. The upper side of the leaf blade of 'Meidrifora' has medium glossiness while that of 'Meiggili' has strong glossiness. The flower of 'Meidrifora' is a double type with a greater number of petals per flower and a smaller diameter than that of 'Noala' which is a single type. The petal of 'Meidrifora' is smaller than that of 'Noala' and narrower than that of 'Meiggili'. The inner side of the petal of 'Meidrifora' is mainly dark pink red to red pink with light yellow at the base whereas that of 'Noala' is mainly light red pink with white at the base and that of 'Meiggili' is mainly red pink with light yellow at the base. The outer side of the petal of 'Meidrifora' is purple red to light blue pink while that of 'Noala' is red pink and that of 'Meiggili' is light yellow to light yellow orange. The filament of 'Meidrifora' is white while that of both reference varieties is medium yellow.


PLANT: shrub, upright to semi-upright growth habit
YOUNG SHOOT: weak intensity of anthocyanin colouration
STEM: few prickles, reddish

LEAF: medium sized, medium intensity of green on upper side, no anthocyanin colouration, medium glossiness of upper side, weak undulation of margin
TERMINAL LEAFLET: medium elliptic, rounded base, acute apex

FLOWERING SHOOT: few flowering laterals, very few flowers per lateral
FLOWER BUD: medium ovate in longitudinal section
FLOWER: double, orange blend and pink blend colour group, loose density of petals, irregularly rounded, profile of upper and lower part is flattened convex, absent or weak fragrance
SEPAL: weak extensions
PETALS: no reflexing one-by-one, obovate and obcordate, absent or very weak incision at apex, weak reflexing of margin, weak undulation of margin, small to medium sized, main colour on inner side is dark pink red to red pink (RHS 52A-B), secondary colour is light yellow (RHS 11C) at base, outer side is purple red to light blue pink (RHS 55B-C)
BASAL SPOT ON INNER SIDE: small, light yellow
SEED VESSEL: very small at petal fall
HIP: pitcher-shaped in longitudinal section

Origin & Breeding History: 'Meidrifora’ originated from hybridization work conducted by the breeder at Le Luc en Provence, France in June 1997. The cross was conducted between the female parent designated 'The Fairy’ and the male parent, a proprietary unnamed seedling ('Kormax’ x an unnamed seedling). In September 2005, 'Meidrifora’ was selected based on its improved attractive flower colours, spreading ground cover growth habit and attractive foliage.

Tests & Trials: Trials for 'Meidrifora' were conducted in an outdoor container trial and then moved indoors during the summer of 2013 at Variety Rights Management, Oxford Station, Ontario. The trial consisted of a total of 13 plants of the candidate variety, 2 plants of 'Noala' and 11 plants of 'Meiggili'. All plants were grown from bare-rooted plants and transplanted into 22 cm pots, spaced 45 cm apart. Observations and measurements were taken from 10 plants of each variety in July 2013. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Meidrifora' with reference varieties 'Noala' and 'Meiggili'

Number of petals per flower

  'Meidrifora' 'Noala' 'Meiggili'
mean 21.9 5.2 20.8
std. deviation 4.29 0.41 1.75

Flower diameter (cm)

  'Meidrifora' 'Noala' 'Meiggili'
mean 4.3 5.4 4.6
std. deviation 0.53 0.64 0.59

Petal length (cm)

  'Meidrifora' 'Noala' 'Meiggili'
mean 2.2 2.8 2.4
std. deviation 0.28 0.27 0.29

Petal width (cm)

  'Meidrifora' 'Noala' 'Meiggili'
mean 1.8 2.7 2.3
std. deviation 0.16 0.14 0.17

Colour of petal (RHS)

  'Meidrifora' 'Noala' 'Meiggili'
inner side- main 52A-B 49B-C 49A
inner side- secondary 11C 155D 11C
outer side 55B-C 48D 11C-D

Click on image for larger view
Rose: 'Meidrifora' (left) with reference variety 'Noala' (right)

Click on image for larger view
Rose: 'Meidrifora' (left) with reference variety 'Meiggili' (right)

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