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Mexican Giant Hyssop

Denomination: 'Kiegabi'
Botanical Name: Agastache mexicana
Applicant/Holder: Kieft Bloemzaden B.V.
Elbaweg 35
1607 MN
Breeder: Carla Moonen, VA Enkhuizen, Netherlands
Agent in Canada: Variety Rights Management
475 County Road 18
R.R. #2
Oxford Station, Ontario
K0G 1T0
Tel: 613-258-9015
Application Date: 2004-08-13
Application Number: 04-4321
Date abandoned: 2008-11-06

Variety Description

Variety used for comparison: 'Apache Sunset'

Summary: The giant hyssop variety 'Kiegabi' has shorter plants and wider leaves than variety 'Apache Sunset'. The leaf blades of 'Kiegabi' are elliptic to ovate with a crenate margin, whereas those of 'Apache Sunset' are linear with a entire to sinuate margin. The petioles of 'Kiegabi' are longer than those of 'Apache Sunset'. Florets of 'Kiegabi' are longer than those of 'Apache Sunset'. Inflorescences of 'Kiegabi' have both orange brown and blue pink florets, whereas those of 'Apache Sunset' carry only orange brown florets.


PLANT: vegetatively propagated, perennial, upright-bushy growth habit, medium to dense branching
STEM: medium green, absent or very weak anthocyanin, absent or very weak glaucosity, absent or very weak pubescence, moderate thickness, square in shape

LEAF: opposite arrangement, simple, elliptic to ovate in shape, acute apex, attenuate base, crenate margin, absent or very sparse pubescence on upper and lower side, absent or very weak glaucosity on upper side, medium green on upper side and on lower side, no variegation
PETIOLE: absent to very weak anthocyanin

FLOWERING: almost continuous, mid-season, medium to long duration
INFLORESCENCE: spike with whorled florets in verticillasters on spike, terminal and axillary position, erect
FLORET: bilabiate corolla, orange red when unopened, orange brown and blue pink when opened

Origin & Breeding History: 'Kiegabi' was developed from a cross between a salmon/rose bi-coloured Agastache line designated 97-1020 and a salmon coloured line designated 97-0014-1 made in 2001 in Venhuizen, The Netherlands. The F1 seedlings were grown in 2001 and the new variety was selected for its improved floral and foliage colour. Additional evaluation criteria for the new variety were plant vigor and health, reliable propagation and cutting stability.

Tests & Trials: Trials for 'Kiegabi' were conducted during the summer of 2006 in Oxford Station, Ontario. Trials consisted of 15 plants of each variety grown in 15 cm pots in a polyhouse. Plants were spaced 45 cm apart. Observations and measurements were taken from 10 plants of each variety. All colour measurements were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Kiegabi' with reference variety 'Apache Sunset'

Plant height (cm)

  'Kiegabi' 'Apache Sunset'
mean 49.7 56.7
std. deviation 3.44 6.02

Leaf blade width (cm)

  'Kiegabi' 'Apache Sunset'
mean 2.9 0.6
std. deviation 0.35 0.23

Petiole length (cm)

  'Kiegabi' 'Apache Sunset'
mean 9.2 3.7
std. deviation 2.86 1.97

Floret length (cm)

  'Kiegabi' 'Apache Sunset'
mean 2.9 2.2
std. deviation 0.13 0.19

Colour of flower(RHS)

  'Kiegabi' 'Apache Sunset'
unopened bud 31A to 32B 31A-B
opened floret 32C and N74 32C

Click on image for larger view
Mexican Giant Hyssop: 'Kiegabi' (left) with reference variety 'Apache Sunset' (right)

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