Hort200101
ActiveRhododendron simsii Planch. · Indica azalea
Vanderhaegen Johan
Cultivation
Azalea greenhouse cultivation
Rhododendron simsii Planch.
The cultivation of Rhododendron simsii in indoor environments requires strict control of dormancy period temperatures, substrate acidity, and specific lighting conditions.
In the reference 8 varieties crop Indica azalea, where this is mentioned in the description.
For the commercial production of Rhododendron simsii in a greenhouse, it is critical to observe a dormancy period at temperatures of 5–8 °C for two months, which is necessary for flower bud initiation. Plants require intense diffused light, as direct sunlight causes leaf scorch and flower wilting. High air humidity must be maintained while avoiding water contact with the flowers to prevent rot.
Technological requirements include maintaining a strict substrate pH range of 4.0–4.5; deviations from this range induce chlorosis. Due to their shallow root system, azaleas are grown in low-profile containers to prevent waterlogging. Unlike many potted crops, the propagation of slow-growing azalea cultivars involves grafting onto vigorous rootstocks.
General information about the subject — on the page Protected cultivation.
Varieties of Indica azalea mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Furious Fujiori
ActiveRhododendron simsii Planch. · Indica azalea
Lammert Koning^^^Matthijs Cornelis Barendse
Theo
ActiveRhododendron simsii Planch. · Indica azalea
Stahnke, Otto|Bromer Strasse 104, 38524 Sassenburg-Grussendorf, Federal Republic of Germany / Dettmer, Peter|Bromer Strasse 104, 38524 Sassenburg-Grussendorf, Federal Republic of Germany / Dettmer, Eleonore|Bromer Strasse 104, 38524 Sassenburg-Grussendo
DE
3 records
Linde de Lo
ActiveRhododendron simsii Planch. · Indica azalea
DRIEGHE AZALEA BVBA
BE
3 records
Rena
TerminatedRhododendron simsii Planch. · Indica azalea
Karl Glaser, Karl Glaser
DE
2 records
HORT05
ActiveRhododendron simsii Planch. · Indica azalea
Hortibreed N.V.
HORT10
ActiveRhododendron simsii Planch. · Indica azalea
Hortibreed N.V.
Amadores
TerminatedRhododendron simsii Planch. · Indica azalea
RANNACKER KARSTEN
BE
DE
2 records
ILVOAIKO01
ActiveRhododendron simsii Planch. · Indica azalea
Instituut voor Landbouw- en Visserijonderzoek (ILVO) Eenheid Plant
YBAZ1812
TerminatedRhododendron simsii Planch. · Indica azalea
Wendy Bergman
Tamira
Protection expiredRhododendron simsii Planch. · Indica azalea
Hermann Glaser
DE
1 record
Martina
TerminatedRhododendron simsii Planch. · Indica azalea
HOLZ| Hans-Peter Holz
DE
1 record
Visolotto
WithdrawnRhododendron simsii Planch. · Indica azalea
Maurice van der Meer
Arduwi
TerminatedRhododendron simsii Planch. · Indica azalea
Azaleakwekerij Arends C.V.
Fantasia
TerminatedRhododendron simsii Planch. · Indica azalea
Karsten Rannacher
Verdena 10
TerminatedRhododendron simsii Planch. · Indica azalea
Holger Lienhop
DE
1 record
Kassandra weiß
TerminatedRhododendron simsii Planch. · Indica azalea
Karsten Rannacher
DE
1 record
Sister Jo
TerminatedRhododendron simsii Planch. · Indica azalea
HEINZ MANTEN
DE
1 record
Memoria Theo Simon
TerminatedRhododendron simsii Planch. · Indica azalea
MANTEN| Heinz Manten
DE
1 record
Steffanie
TerminatedRhododendron simsii Planch. · Indica azalea
BARDT| Albert Bardt (Gartenbau) / BARDT IRMTRAUT| Irmtraut Bardt / BARDT FRANK| Frank Bardt / BARDT FRED| Fred Bardt
DE
1 record
Miss Martina
TerminatedRhododendron simsii Planch. · Indica azalea
Eleonore Dettmer und Peter Dettmer (als Gesellschaft des bürgerlichen Rechts)
DE
1 record
Michelle-Marie
Protection expiredRhododendron simsii Planch. · Indica azalea
Karsten Rannacher
DE
1 record
Poetry
TerminatedRhododendron simsii Planch. · Indica azalea
Wendy Bergman
Georg Struppek
TerminatedRhododendron simsii Planch. · Indica azalea
STAHNKE| Otto Stahnke (Gartenbaubetrieb)
DE
1 record