Denomination: 'Bailhalo'
Trade name: Ivory Halo
Botanical Name: Cornus
Applicant/Holder: Bailey Nurseries, Inc.
1325 Bailey Road
St. Paul, Minnesota
United States of America
Breeder: Rodney P. Bailey, Bailey Nurseries, Inc., St. Paul, United States of America
Agent in Canada: Jeffries Nurseries Ltd.
Box 402
Portage La Prairie, Manitoba
R1N 3B7
Tel: 204-857-5288
Application Date: 1999-09-23
Application Number: 99-1793
Grant of Rights Date: 2001-11-29
Certificate Number: 1097
Grant of Rights Termination Date: 2019-11-29

Variety Description

Variety used for comparison: 'Argenteo-Marginata'

Summary: 'Bailhalo' has a shorter, more compact growth habit than 'Argenteo-Marginata'. The stems of 'Bailhalo' have shorter internodes than the stems of 'Argenteo-Marginata'. 'Bailhalo' has smaller leaves with a larger amount of secondary colour on the margins than 'Argenteo-Marginata'. 'Bailhalo' has shorter peduncles with weaker anthocyanin than 'Argenteo-Marginata'.


'Bailhalo' has an upright/bushy growth habit which is very dense. The young stem has an erect attitude, reddish-green colour and very sparse pubescence. The one year old shoot is red to brown in colour, has a low number of lenticels and is glossy.

The leaves are arranged in opposite pairs. The leaf blade is elliptic in shape, with an acuminate tip and acute shaped base. The leaves are variegated with a light to medium green main colour on the upper side and cream secondary colour. 'Bailhalo' has a medium amount of variegation which is located on the leaf margins. The lower leaf surface is a dull greyish green. The upper leaf surface has sparse to medium pubescence and glossiness on the upper surface is very weak. The lower leaf surface has sparse to medium pubescence and absent to very weak glaucosity. The colour of the leaf in autumn is yellow, red and brown.

'Bailhalo' infrequently produces a few flowers during midseason, which are arranged in a cyme. The cymes are horizontal in attitude and have no bracts. The florets are small in size and white in colour. The peduncle has weak to medium anthocyanin. The fruit is round in shape and changes in colour from lime green to white at maturity.

Origin & Breeding History: 'Bailhalo' was a mutation discovered in a production field of Cornus alba 'Argenteo-Marginata'. The mutation was found in 1983 in St. Paul, Minnesota, USA.

Tests & Trials: Tests and trials for 'Bailhalo' were conducted at Jeffries Nurseries in Portage La Prairie, Manitoba. The trials consisted of ten plants per variety grown in field plots. Plant spacing was 12 inches (30.5 cm). Measured characteristics were based on ten measurements.

Comparison tables for 'Bailhalo' with reference variety 'Argenteo-Marginata'

Leaf blade length (cm)

  'Bailhalo' 'Argenteo-Marginata'
mean 9.6 11.2
std. deviation 1.03 .83

Leaf blade width (cm)

  'Bailhalo' 'Argenteo-Marginata'
mean 4.6 5.5
std. deviation .32 .72

Internode length (mm)

  'Bailhalo' 'Argenteo-Marginata'
mean 6.2 7.1
range 5.3 - 7.2 6.1 -8.5

Peduncle length (mm)

  'Bailhalo' 'Argenteo-Marginata'
mean 19.7 32.0
std. deviation 4.0 6.7
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