Denomination: 'Heliovi'
Trade name: Scentropia Blue
Botanical Name: Heliotropium arborescens
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Breeder: Ánna M.W.P. Houbraken, Syngenta Seeds B.V., Enkhuizen, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2005-11-25
Application Number: 06-5658
Date Withdrawn: 2009-09-23

Variety Description

Variety used for comparison: 'Nagano'

Summary: 'Heliovi' has a smaller leaf blade than 'Nagano'. 'Heliovi' differs slightly from 'Nagano' in the colour on the upper and lower side of the fully opened corolla.


PLANT: bushy-rounded growth habit, low to medium degree of branching
STEM: medium green, weak anthocyanin colouration, dense pubescence, thin, smooth

LEAF: alternate arrangement, simple, ovate to lanceolate, acute apex, cuneate base, entire margin, medium pubescence on upper side, medium to strong pubescence at midrib on lower side, medium green on upper and lower side

PEDUNCLE: medium anthocyanin colouration, medium pubescence

INFLORESCENCE: cyme, terminal position, erect to semi-erect, dense
COROLLA LOBES: 5, petals partially fused, medium size, salverform, weak undulation of margin, absent to very weak recurvature of margin, sparse pubescence on throat, violet on upper side with white at base, throat light green (RHS 144A), violet on lower side when first open, light blue violet on lower side when fully open

Origin & Breeding History: 'Heliovi' originated from a controlled cross made in August 2001, in Enkhuizen, The Netherlands. The female parent was identified as B0213-3 and the pollen came from unidentified Heliotropium arborescens plants. The new variety was selected as a single seedling in August 2002, based on criteria for growth and branching habit, flower head size and good heat tolerance. Asexual reproduction by cuttings was first conducted in August 2002 in Enkhuizen, The Netherlands.

Tests & Trials: Trials for 'Heliovi' were conducted during the summer of 2008 in a polyhouse at BioFlora Inc. in St. Thomas, Ontario. There were 15 plants each of the candidate and reference variety. The plants were grown from rooted cuttings which were transplanted into 15 cm pots on April 30, 2008. Observations and measurements were taken from 10 plants on June 16, 2008. All colour determinations were made using the 2001 Royal Horticulture Society (RHS) Colour Chart.

Comparison tables for 'Heliovi' with reference variety 'Nagano'

Leaf blade length (cm)

  'Heliovi' 'Nagano'
mean 7.1 8.9
std. deviation 0.41 0.90

Leaf blade width (cm)

  'Heliovi' 'Nagano'
mean 2.9 3.5
std. deviation 0.30 0.29

Corolla colour (RHS)

  'Heliovi' 'Nagano'
upper side N87A (newly opened), N82C (fully opened) N87A
lower side N87C (newly opened), 76D (fully opened) N87B-C

Click on image for larger view
Heliotrope: 'Heliovi' (left) with reference variety 'Nagano' (right)

Click on image for larger view
Heliotrope: 'Heliovi' (left) with reference variety 'Nagano' (right)

Date modified: