Language selection


Synbul Henfirst


Denomination: 'Synbul Henfirst'
Trade name: Blue Henry the First
Botanical Name: Aster
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Breeder: Mark Smith, Syngenta Flowers, Inc., Gilroy, United States of America
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-317-7511
Application Date: 2009-10-30
Application Number: 09-6775
Grant of Rights Date: 2011-12-05
Certificate Number: 4224
Date rights surrendered: 2017-12-05

Variety Description

Varieties used for comparison: 'Milka' and 'Synhen Thefirst' (Henry The First)

Summary: The plants of 'Synbul Henfirst' are short while those of 'Milka' are tall to very tall and those of 'Synhen Thefirst' are medium height. The plants of 'Synbul Henfirst' are narrower than those of 'Milka'. The leaf of 'Synbul Henfirst' is shorter than that of 'Milka'. The ray floret of 'Synbul Henfirst' is longer than that of 'Milka'. The apex of the ray floret of 'Synbul Henfirst' is rounded while that of 'Milka' is acute. The upper side of the ray floret of 'Synbul Henfirst' is blue violet while that of 'Synhen Thefirst' is violet.


PLANT: short
STEM: semi-erect branches, thin, many branches, medium hairiness, no anthocyanin colouration on internode or leaf axil

LEAF: elliptic and ovate, no dentations on margin, medium green, no anthocyanin colouration

FLOWER HEAD: distributed only on distal part of side branches of the first order, more than two whorls of ray florets, medium to many ray florets
RAY FLORET: narrow obovate, predominantly ligulate, straight tip, flat to weakly convex in cross section, rounded apex, dentation of apex present, blue violet (RHS N88B) on upper side
INVOLUCRE: funnel-shaped, medium to many bracts, adpressed position of bracts
DISC: none

Origin & Breeding History: 'Synbul Henfirst' originated from a naturally occurring whole plant mutation of the variety 'Yohenry the First'. The new variety was discovered and developed by the breeder Mark Smith in April 2008 in Alva, Florida, USA. 'Synbul Henfirst' was selected based on flower colour and plant growth habit.

Tests & Trials: Trials for 'Synbul Henfirst' were conducted in an outdoor irrigated trial during the summer of 2010 in St. Thomas, Ontario. The trial included a total of 15 plants each of the candidate and reference varieties. All plants were grown from a single rooted cutting transplanted into a 20 cm standard pot on June 29, 2010. Observations and measurements were taken from 10 plants of each variety on September 14, 2010, with the exception of 'Milka' which was observed on September 29, 2010. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Synbul Henfirst' with reference varieties 'Milka' and 'Synhen Thefirst'

Plant height (cm)

  'Synbul Henfirst' 'Milka' 'Synhen Thefirst'
mean 19.0 58.9 25.9
std. deviation 1.52 5.09 2.59

Plant width (cm)

  'Synbul Henfirst' 'Milka' 'Synhen Thefirst'
mean 39.7 46.3 42.4
std. deviation 2.25 1.83 3.13

Leaf length (cm)

  'Synbul Henfirst' 'Milka' 'Synhen Thefirst'
mean 2.1 4.8 2.2
std. deviation 0.24 0.45 0.14

Ray floret length (cm)

  'Synbul Henfirst' 'Milka' 'Synhen Thefirst'
mean 1.7 1.4 1.7
std. deviation 0.04 0.08 0.07

Colour of ray floret (RHS)

  'Synbul Henfirst' 'Milka' 'Synhen Thefirst'
upper side lighter than N88B N88C N87A

Click on image for larger view
Synbul Henfirst
Aster: 'Synbul Henfirst' (left) with reference varieties 'Milka' (centre) and 'Synhen Thefirst' (right)

Click on image for larger view
Synbul Henfirst
Aster: 'Synbul Henfirst' (left) with reference varieties 'Milka' (centre) and 'Synhen Thefirst' (right)

Click on image for larger view
Synbul Henfirst
Aster: 'Synbul Henfirst' (left) with reference varieties 'Milka' (centre) and 'Synhen Thefirst' (right)

Date modified: