Rhododendron Hybrids / cultivars

Gallery name starting with: 12ABCDEFGHIJKLMNOPQRSTUVWXYZHOME to hirsutum.info

cultivar group 'John Coutts Group'

Hybridiser:Kew. Royal Botanical Gardens, Surrey, England, 1946 (see more plants of this hybridizer)
Status:IRRC registered.
The figures listed here are averages.

The exact location (altitude, sunlight, soil, climate) can influence growth considerably
in 10 years
120 cm. (4ft.)
Bloom time:unknownFlower:unknown
H0 = 0 C (32 F)
H1 = -7 C (20 F)
H2 = -12 C (10 F)
H3 = -15 C (5 F)
H4 = -18 C (0 F)
H5 = -24 C (-10 F)

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your rhododendrons.

To try/see this go 'Home' (top-right).
on hirstum.info: 2
R. John Coutts Group per country:
(could be a clue for heat/cold-tolerance)

Canada : 1
United States : 1

'Vesuvius x griffithianum'   Click to see more information XR. griersonianum   Click to see more information

'Vesuvius'   Click to see more informationxR. griffithianum   Click to see more information

R. arboreum ssp arboreum   Click to see more information

xR. catawbiense

cultivar group 'John Coutts Group' photos

Photo byHomeplace Garden Nursery, Commerce, GA, USA

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Parentage according the IRRC of the Royal Horticultural Society
Involved in other cultivars:Hybridiser
'Blessed Event''John Coutts Group' x 'Sarita Loder'Lyons, M.W.
Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009