Waterslide
| Denomination: | 'Waterslide' |
|---|---|
| Botanical Name: | Hosta |
| Applicant/Holder: |
Walters Gardens, Inc. 1992 96th Avenue P.O. Box 137 Zeeland, Michigan 49464-0137 United States of America |
| Breeder: |
Hans A. Hansen, Zeeland, United States of America |
| Agent in Canada: |
Variety Rights Management 475 County Road 18 R.R. #2 Oxford Station, Ontario K0G 1T0 Canada Tel: 613-258-9015 |
| Application Date: | 2018-05-18 |
| Provisional Protection:: | 2018-05-18 |
| Application Number: | 18-9495 |
| Grant of Rights Date: | 2020-09-04 |
| Certificate Number: | 6261 |
| Grant of Rights Termination Date: | 2040-09-04 |
Variety Description
Variety used for comparison: 'Neptune'
Summary: The plants of 'Waterslide' are smaller than those of 'Neptune'. The petiole of 'Waterslide' is shorter than that of 'Neptune'. The leaf blade of 'Waterslide' is smaller than that of 'Neptune'. The colour of the leaf blade of 'Waterslide' is dark green while it is brown green for 'Neptune'. The leaf blade of 'Waterslide' has a medium number of parallel veins while that of 'Neptune' has many parallel veins. The inflorescence of 'Waterslide' is shorter than that of 'Neptune'.
Description:
PLANT SHOOT: purple first leaf scales
LEAF BLADE: broadest part moderately towards base, narrow ovate, acute base and apex, one colour, flat in cross section, medium number of parallel veins, absent or very weak bulging, absent or weak blistering, medium degree of undulation of margin, absent or weak twisting
COLOUR ON LEAF BLADE: dark green (RHS N138A) with brown green (RHS 189A) waxy bloom, large surface area, distributed throughout, solid or nearly solid pattern
PETIOLE: "u" shaped in cross section on inner side, yellow green, no anthocyanin colouration
INFLORESCENCE: few to medium number of flowers, drooping flower attitude, bracts present
FLOWER: single, perianth funnel shaped in lateral view, outer side of inner corolla lobes light blue violet (RHS 76B/C)
PEDUNCLE: brown green (RHS 138D)
Origin & Breeding History: 'Waterslide' originated from a cross conducted between the proprietary hybrid WGI-16, as the female parent, and the variety 'Neptune', as the male parent, in Zeeland, Michigan, USA, in August 2010. The resulting seeds, collected from individual female plants, were sown in the summer 2012, at Walters Gardens, Inc. in Zeeland, Michigan. Initial selections were made in summer 2014 based on flower colour and plant habit. Propagation of the variety was conducted by shoot tissue culture in summer 2014.
Tests & Trials: The comparative trial for 'Waterslide' was conducted in a galvanized steel structure, covered with black mesh shade fabric, during the summer of 2019, at Variety Rights Management in Oxford Station, Ontario. The trial included 20 plants each of the candidate and reference variety. Plants were individually potted in 22 cm diameter pots spaced 45 cm apart. Observations and measurements were taken from 10 plants, or 10 parts of plants, of each variety. All colour determinations were made using 2015 Royal Horticultural Society (RHS) Colour Chart.
Comparison tables for 'Waterslide' with reference variety 'Neptune'
Plant height (cm)
| 'Waterslide' | 'Neptune' | |
|---|---|---|
| mean | 21.8 | 32.8 |
| std. deviation | 4.09 | 3.28 |
Plant width (cm)
| 'Waterslide' | 'Neptune' | |
|---|---|---|
| mean | 37.3 | 54.3 |
| std. deviation | 3.01 | 2.25 |
Petiole length (cm)
| 'Waterslide' | 'Neptune' | |
|---|---|---|
| mean | 10.6 | 16.6 |
| std. deviation | 0.94 | 2.23 |
Leaf blade length (cm)
| 'Waterslide' | 'Neptune' | |
|---|---|---|
| mean | 11.5 | 21.4 |
| std. deviation | 1.66 | 1.53 |
Leaf blade width (cm)
| 'Waterslide' | 'Neptune' | |
|---|---|---|
| mean | 5.8 | 11.3 |
| std. deviation | 0.85 | 1.40 |
Leaf blade colour (RHS)
| 'Waterslide' | 'Neptune' | |
|---|---|---|
| main | N138A | 137A |
Inflorescence length (cm)
| 'Waterslide' | 'Neptune' | |
|---|---|---|
| mean | 23.8 | 81.2 |
| std. deviation | 2.22 | 5.85 |
Click on image for larger view
Hosta: 'Waterslide' (left) with reference variety 'Neptune' (right)
Click on image for larger view
Hosta: 'Waterslide' (left) with reference variety 'Neptune' (right)
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