Cloudburst
| Denomination: | 'Cloudburst' |
|---|---|
| Botanical Name: | Phlox |
| 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: | 18-9498 |
| Grant of Rights Date: | 2020-09-04 |
| Certificate Number: | 6263 |
| Grant of Rights Termination Date: | 2040-09-04 |
Variety Description
Variety used for comparison: 'Ditomsur'
Summary: The plants of 'Cloudburst' are shorter than those of 'Ditomsur'. The leaf blade of 'Cloudburst' is smaller than that of 'Ditomsur'. The corolla tube for 'Cloudburst' is violet while that of 'Ditomsur' is dark violet to purple. Excluding the eye, the inner side of the corolla lobe for 'Cloudburst' is medium purple throughout while that of 'Ditomsur' is mainly violet with light violet and white at the basal zone. The colour of the style for 'Cloudburst' is light green while it is purple red for 'Ditomsur'. The plants of 'Cloudburst' flower early in the season while the plants of 'Ditomsur' flower mid-season.
Description:
STEM: medium thickness at middle third, weak intensity of anthocyanin colouration, medium length internode at middle third
LEAF: medium length to width ratio, broadest part at middle, flat in cross-section, acuminate to acute apex, no variegation, medium anthocyanin colouration development on upper side later in season, absent or weak undulation of margin
TIME OF BEGINNING OF FLOWERING: early in season
INFLORESCENCE: many flowers
PEDICEL: short to medium length, medium intensity of anthocyanin colouration
PERIANTH: present
CALYX: short, absent or weak intensity of anthocyanin colouration
COROLLA LOBE: medium length, medium width, obovate
COROLLA LOBE (INNER SIDE): medium purple (RHS NN78C), no secondary colour
COROLLA EYE: purple (RHS N74B)
COROLLA TUBE: medium length, small diameter directly below lobes, violet (RHS N78C/D)
ANTHER: light yellow
STYLE: light green
Origin & Breeding History: 'Cloudburst' originated from a cross between 'Ditomsur', as the female parent, and a proprietary selection of Phlox latifolia, as the male parent, conducted in early summer of 2011, in Zeeland, Michigan, USA. The resulting seeds were collected and sown in 2011, in Zeeland, Michigan. The new variety was selected in the summer of 2013 based on foliage colour, disease resistance, plant habit and flower colour. 'Cloudburst' was first asexually reproduced by shoot tip cuttings in the summer of 2013.
Tests & Trials: The comparative trial for 'Cloudburst' was conducted outdoors under a shade cloth during the summer of 2019 at Variety Rights Management, in Oxford Station, Ontario. There were 20 plants each of the candidate and reference variety. Dormant bare-root divisions were transplanted into 22 cm pots and 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 the 2015 Royal Horticulture Society (RHS) Colour Chart.
Comparison tables for 'Cloudburst' with reference variety 'Ditomsur'
Plant height (cm)
| 'Cloudburst' | 'Ditomsur' | |
|---|---|---|
| mean | 43.9 | 50.5 |
| std. deviation | 2.62 | 2.95 |
Leaf length (cm)
| 'Cloudburst' | 'Ditomsur' | |
|---|---|---|
| mean | 7.5 | 10.7 |
| std. deviation | 0.48 | 0.49 |
Leaf width (cm)
| 'Cloudburst' | 'Ditomsur' | |
|---|---|---|
| mean | 2.4 | 3.3 |
| std. deviation | 0.32 | 0.38 |
Colour of corolla tube (RHS)
| 'Cloudburst' | 'Ditomsur' | |
|---|---|---|
| main | N78C/D | N79B/C |
Colour of corolla lobe (inner side) (RHS)
| 'Cloudburst' | 'Ditomsur' | |
|---|---|---|
| main | NN78C | N78A |
| secondary | N/A | N75B and N155A at basal zone |
Click on image for larger view
Phlox: 'Cloudburst' (left) with reference variety 'Ditomsur' (right)
Click on image for larger view
Phlox: 'Cloudburst'
Click on image for larger view
Phlox: reference variety 'Ditomsur'
- Date modified: