Sweet Dreams

Coreopsis

Denomination: 'Sweet Dreams'
Botanical Name: Coreopsis rosea
Applicant/Holder: Aris Horticulture Inc.
P.O. Box 230
Barberton, Ohio
44203
United States of America
Breeder: Mark Alan Leonard, New Castle, United States of America
Agent in Canada: Keepsake Plants, Ltd.
P.O. Box 370
268 Seacliff Drive West
Leamington, Ontario
N8H 3W3
Canada
Tel: 519-326-6121; Ext.224
Application Date: 2001-01-30
Application Number: 01-2532
Grant of Rights Date: 2003-12-03
Certificate Number: 1670
Grant of Rights Termination Date: 2021-12-03

Variety Description

Variety used for comparison: 'American Dreams'

Summary: 'Sweet Dreams' differs from the reference variety, 'American Dreams', in flower and foliage colour, ray floret colour and markings, and flower head diameter. The ray florets of 'Sweet Dreams' are bi-coloured (white at the outer edge with a red-purple toward the base) whereas they are a solid soft pink-purple (mauve) in 'American Dream'. The foliage of 'Sweet Dreams' is a darker green than that of 'American Dreams'. The diameter of the inflorescence and disc florets of 'Sweet Dreams' are larger than those of 'American Dreams'.

Description:

'Sweet Dreams' is a vegetatively propagated perennial coreopsis variety with a bushy, rounded to spreading growth habit with a medium degree of branching. The smooth, light green stems are medium in thickness with weak to medium anthocyanin colouration and very sparse pubescence. The pinnately compound leaves are opposite in arrangement, have 2-4 leaflets per leaf which are linear in shape with a blunt acute apex, attenuate base and entire margins. They are medium green and smooth on both surfaces. There is no variegation of the leaves. Leaf petioles are absent. The peduncle has no anthocyanin colouration or pubescence.

'Sweet Dreams' flowers almost continuously, starting late spring. The inflorescence of 'Sweet Dreams' is a flower head which are both terminal and axillary in location. Flower attitude is semi-erect with few ray florets. The ray florets are open to touching with a straight to very weakly incurving longitudinal axis of majority. The florets are obovate with an emarginate apex and very weak pubescence along the ribs/veins. Disc florets are present.

Origin & Breeding History: 'Sweet Dreams' is a naturally occurring mutation of 'American Dreams'. It was discovered in a group of flowering plants of the parent cultivar in Loomis, California, United States in July, 1996. Selection of this variety was based on its unique ray floret colouration.

Tests & Trials: Tests and trials for 'Sweet Dreams' were conducted in the greenhouse at Yoder Canada Ltd. during the spring and summer of 2002. Trials consisted of a minimum of 15 plants per variety with one cutting per 11 cm square pot. Colour characteristics were determined using the 2001 RHS colour chart. Measured characteristics were based on 10 measurements.


Comparison tables for 'Sweet Dreams' with reference variety 'American Dreams'

Leaf blade length (mm)

  'Sweet Dreams' 'American Dreams'
mean 52.1 44.4
std. deviation 4.98 6.90

Peduncle length (mm)

  'Sweet Dreams' 'American Dreams'
mean 50.6 21.6
std. deviation 13.52 6.11

Inflorescence diameter (mm)

  'Sweet Dreams' 'American Dreams'
mean 30.4 21.7
std. deviation 3.89 2.21

Floret length (mm)

  'Sweet Dreams' 'American Dreams'
mean 12.1 10.2
std. deviation 1.45 0.63

Main colour of ray floret(RHS)

  'Sweet Dreams' 'American Dreams'
upper side 155D centre & apex; streaks & random spots of 72B-71A N74C fades to 77C
lower side 155D with veins 155A; streaks 72C-D, as dark as 71A N74D fades to77D

Secondary colour of ray floret (RHS)

  'Sweet Dreams' 'American Dreams'
upper side 59A-71A at base N/A
lower side 77A at base N/A

Disc diameter (mm)

  'Sweet Dreams' 'American Dreams'
mean 7.4 6.1
std. deviation 0.52 0.57
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