Rhododendron Hybrids / cultivars

Gallery name starting with: 12ABCDEFGHIJKLMNOPQRSTUVWXYZHOME to hirsutum.info

Rhododendron 'Jan Dekens'

Hybridiser:Endtz, L.J. & Co. Boskoop, Netherlands, 1940 (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
150 cm. (5ft.)
Bloom time:unknownFlower:unknown
Bloom time duration:31
Bloom time duration 'Jan Dekens'

Observation based on 1 plants,
growing in 1 'My-gardens'.

Exact= 31 days.
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)

In 'Your Garden' you can administrate
your rhododendrons.

To try/see this go 'Home' (top-right).
on hirstum.info: 5
R. Jan Dekens per country:
(could be a clue for heat/cold-tolerance)

United States : 3
Canada : 2

'Ole Olson'   Click to see more information X'lacteum x Mary Swaythling'   Click to see more information
R. campylocarpum Elatum Group   Click to see more informationxR. fortunei ssp discolor   Click to see more information

R. lacteum   Click to see more information

x'Mary Swaythling'   Click to see more information

Rhododendron 'Jan Dekens' photos

Photo byHank Helm
LocationHank Helm Garden, Bainbridge Island, WA, USA
See high-resolution picture
Photo byJeannie & Calvin Parsons
LocationGlendale Gardens, Victoria, BC, Canada
Date26 May, 2010
See high-resolution picture
Photo byGarth Wedemire
LocationPrivate garden Dick and Ann Beamish, Nanaimo, BC, Canada
Date17 May, 2012
See high-resolution picture
Photo byHarry R. Wright
LocationHaida Gold Gardens, Courtenay BC, Canada
Date05 April, 2007
See high-resolution picture
Photo byBarbara Kulla
Locationprivate garden, Vancouver Island, Canada
Date03 June, 0201

Send your own information or pictures

Parentage according the IRRC of the Royal Horticultural Society
Involved in other cultivars:Hybridiser
'Castanets'   Click to see more information

'Jan Dekens' x 'Point Defiance'Lofthouse, J.G., 1971
'Pink Petticoats'   Click to see more information

  Pink Petticoats
'Jan Dekens' x 'Britannia'Lofthouse, J.G., 1966
Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009