Rhododendron Hybrids / cultivars

Gallery name starting with: 12ABCDEFGHIJKLMNOPQRSTUVWXYZHOME to hirsutum.info

Rhododendron 'Direktor E Hjelm'

Hybridiser:Koster, D.A., 1938 (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
200 cm. (7ft.)
Bloom time:unknownFlower:unknown
Type:elepidoteLeaves:broadly ovate
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: 1
R. Direktor E Hjelm per country:
(could be a clue for heat/cold-tolerance)

Netherlands : 1

R. fortunei ssp fortunei   Click to see more information


Rhododendron 'Direktor E Hjelm' photos

Photo byTijs Huisman
LocationRhododendron Park Bremen
Date27 May, 2008
See high-resolution picture
Photo byRinus Manders
LocationPrivate Garden Jan Bosch, Baexem, Netherlands
Date05 May, 2014
See high-resolution picture

Send your own information or pictures

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

  Hachmann's Ornament
'Humboldt' x 'Direktor E Hjelm'Hachmann, Hans, 1957
'Hachmann's Parsifal''Mars' x 'Direktor E Hjelm'Hachmann, Hans, 1958
'Kirsten Begeer'   Click to see more information

  Kirsten Begeer
R. fortunei ssp fortunei x 'Direktor E Hjelm'Hobbie, Dietrich G., 1987
'Kokardia'   Click to see more information

'Humboldt' x 'Direktor E Hjelm'Hachmann, Hans, 1957
'Maienzauber''Direktor E Hjelm' x R. degronianum ssp yakushimanum 'Koichiro Wada'Hachmann, Hans, 1984
'Souvenir of Anthony Waterer x Direktor E. Hjelm''Souvenir of Anthony Waterer' x 'Direktor E Hjelm'No hybridiser registered
Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009