Academic Centre
'PASACIŅA'
The cultivar was created by crossing ♀ Rh. x kosterianum C.K. Schneid. x ♂ Rh. roseum Rehd. The crossing was carried out in 1974. The cultivar was selected in 1982, registered in 1999. Breeder Rihards Kondratovičs.
Blooms very abundantly in the first half of June. Flowers are delicately fragrant. Upright shrub. In twenty years it reaches a height of up to 3 m.
Completely winter-hardy cultivar, useful for cultivation throughout the territory of Latvia.
'PĒRLĪTE'
The cultivar was created by crossing ♀ Rh. x 'Rustica Flore Pleno' x ♂ 'Uguns'. Crossbreeding from 1978. The cultivar was selected in 1992, registered in 2007. Breeder Rihards Kondratovičs.
Blooms in early June. Ten-year-old bushes 1.4 m high and 1 m wide, compact, densely branched.
Winter-hardy cultivar, suitable for cultivation throughout the territory of Latvia.
'POLĀRZVAIGZNE'
The cultivar was created by crossing ♀ Rh. x kosterianum C.K. Schneid. x ♂ Rh. roseum Rehd. The crossing was carried out in 1974. The cultivar was selected in 1981, registered in 1999. Breeder Rihards Kondratovičs.
The cultivar blooms in early June. The flowers have a delicate, pleasant scent. The cultivar forms a symmetrical bush. In 20 years it reaches 2 m in height and 2 m in width.
Completely winter-hardy cultivar.
'POLONIA'
The cultivar was created from the cross between ♀ 'Uguns' x ♂ Ex-5 hybrid seedlings. The cross was made in 1976. The cultivar was selected in 1982, registered in 2003. Breeder Rihards Kondratovičs.
Blooms in late May, early June, very abundantly. The cultivar has an upright growing bush. In 20 years it reaches 1.9 m in height and 1.6 m in width.
Completely winter-hardy cultivar in Latvia.
'QAZAQSTAN'
Rhododendron hybrid H-81/8 (Rh. x kosterianum x Rh. prinophyllum) seedling from 1982. The cultivar was selected in 2008, registered in 2021. Breeder Rihards Kondratovičs.
Blooms in late May, first half of June. At the age of twenty, the bush is 1.4 m high and 1.6 m wide.
Winter hardiness is very good, recommended for cultivation throughout Latvia.
The name is dedicated to the 30th anniversary of the independence of the Republic of Kazakhstan.
'RASMA'
The cultivar was created from open-pollinated seed plants of the Western rhododendron Rh. occidentale (Terr. et A. Gray). Selected in 1995, registered in 2010. Breeder Rihards Kondratovičs.
Flowers slightly fragrant. The cultivar blooms in late May, early June, abundantly. Forms a narrow, upright bush. In 20 years, the bushes are 2 m high, 1.5 m wide.
A hardy and winter-hardy cultivar, suitable for cultivation throughout the territory of Latvia.
'RINGLA'
The cultivar was created by crossing ♀ 'Aida' x ♂ 'Uguns'. The crossing was carried out in 1978. The cultivar was selected in 1955, registered in 2013. Breeder Rihards Kondratovičs.
The cultivar blooms profusely in early June. The cultivar forms a wide, bushy growth. A 25-year-old bush is 2.5 m high and 3 m wide.
The cultivar has good winter hardiness, therefore it is suitable for cultivation throughout the territory of Latvia.
'RĪGA'
The cultivar was created by crossing ♀ Rh. arborescens Torr. x ♂ Rh. japonicum Sur. The crossing was carried out in 1961. The cultivar was selected in 1969, registered in 2003. Breeder Rihards Kondratovičs.
Blooms in early June, very abundantly. The flowers have a delicate, pleasant scent. Twenty-year-old bushes 2.5 m high and 2.8 m wide. The bush is bushy and densely branched.
The cultivar has good winter hardiness. Recommended for cultivation throughout the territory of Latvia.
'RĪTA ZVAIGZNE'
The cultivar was created by crossing ♀ Rh. x kosterianum C.K. Schneid. x ♂ Rh. roseum Rehd. The crossing was carried out in 1974. The cultivar was selected in 1981, registered in 1999. Breeder Rihards Kondratovičs.
Blooms in early June. The cultivar is characterized by a symmetrical habit. In 20 years, the bushes are 2 m high and 2 m wide.
A completely winter-hardy cultivar in Latvian climatic conditions, useful for cultivation throughout the territory of Latvia.
'RUBĪNS'
The cultivar was created by crossing ♀ Rh. x kosterianum C.K. Schneid. x ♂ Rh. roseum Rehd. The crossing was carried out in 1974. The cultivar was selected in 1981, registered in 1999. Breeder Rihards Kondratovičs.
Blooms in late May, early June. An exceptionally beautiful red-flowered cultivar. Blooms in late May, early June. Twenty-year-old bushes reach a height of 2 m.
Completely winter-hardy cultivar, suitable for cultivation throughout the territory of Latvia.
'SANTA'
The cultivar was created from the cross of ♀ 'Aida' x ♂ 'Uguns' hybrid seedlings. The cross was made in 1978. The cultivar was selected in 1994, registered in 2013. Breeder Rihards Kondratovičs.
The cultivar blooms very abundantly in early June. The cultivar forms a wide, bushy growth. A 25-year-old bush is 2.5 m high and 3 m wide.
The cultivar has good winter hardiness, therefore it is suitable for cultivation throughout the territory of Latvia.
'SARMA'
The cultivar is a western rhododendron Rh. occidentale 1989. seedling. Selected in 2005, registered in 2017. Breeder Rihards Kondratovičs.
Blooms in late May, very abundantly in the first half of June. The growth is narrowly bushy, twenty dados reach 2.0 m in height and 1.7 m in width.
Suitable for cultivation in the central and western parts of Latvia.
'SAULE'
The cultivar was obtained by crossing ♀ Ex-5 x ♂ Rh. luteum Sweet. The crossing was carried out in 1978. The cultivar was selected in 1984, registered in 2002. Breeder Rihards Kondratovičs.
Blooms very abundantly in late May, early June. The most beautiful yellow-flowered cultivar of local selection. Twenty-year-old bushes 2 m high.
The cultivar has good winter hardiness.
'SELGA'
The cultivar was created by crossing ♀ 'Aida' x ♂ 'Uguns'. The crossing was carried out in 1978. The cultivar was selected in 1984, registered in 2012. Breeder Rihards Kondratovičs.
The cultivar blooms in late May, early June, very abundantly. The cultivar forms a wide bush. 20-year-old plants reach 2 m in height and 2.5 m in width.
Winter hardiness is satisfying. In severe winters, flower buds can sometimes suffer, so the cultivar is recommended to be grown in the western and central parts of Latvia.
'SĒLIJA'
The cultivar was created by crossing ♀’Homebush’ x ♂’Austra’. The crossing was carried out in 1999. The cultivar was selected in 2006, registered in 2021. Breeder Rihards Kondratovičs.
Blooms in late May, first half of June. At the age of twenty, the bush is 2.5 m high and 2 m wide.
Very good winter hardiness. Recommended for cultivation throughout Latvia.
Named after the cultural and historical region of Latvia.
'SKAIDRĪTE'
The cultivar is a 1957 open-pollinated seedling of Japanese rhododendron (Rh. japonicum (A. Gray) Suring.). Selected in 1967, registered in 2001. Breeder Rihards Kondratovičs.
Blooms in late May, early June, very abundantly. Twenty-year-old shrubs 2 m high and 3 m wide.
The cultivar has good winter hardiness. Can be grown throughout the territory of Latvia.
'SLAVA UKRAINAI'
♀ Exbury seedling (Ex-5) x ♂Rh. luteum. Crossbreeding of 1978, selected in 2006. Registered in the International Rhododendron Register in 2022. Breeder Rihards Kondratovičs.
Named in solidarity with the people of Ukraine during the Russian-Ukrainian war.
Blooms in late May, early June. The cultivar is characterized by fragrant, bright yellow flowers. At sixteen years, the bush is 2.5 m high and 2.5 m wide.
Winter hardiness is very good, suitable for cultivation throughout Latvia.
'TEIKA'
The cultivar is a 1965 open-pollinated seedling of the Japanese rhododendron Rh. japonicum (A. Gray) Suring. The cultivar was selected in 1972, registered in 2001. Breeder Rihards Kondratovičs.
Blooms in late May, early June, very abundantly. Plants form a symmetrical bush. Twenty-year-old bushes 2 m high and 2 m wide.
The cultivar has good winter hardiness.
'TTT'
The cultivar was created by crossing ♀ 'Uguns' x ♂ Ex-5. The crossing was carried out in 1976. The cultivar was selected in 1982, registered in 2012. Breeder Rihards Kondratovičs.
The cultivar blooms in late May, early June, very abundantly. The cultivar forms an upright bush. At the age of 15, 2 m high, 1.7 m wide.
Winter hardiness is satisfying, therefore it is recommended for cultivation in the western and central parts of Latvia.
'TURAIDAS ROZE'
♀’Uguns’ x ♂ Exbury seedling (Ex-5). Cross of 1976, selected in 1982. Registered in the International Rhododendron Register in 2023. Breeder Rihards Kondratovičs.
Blooms in late May, early June. The cultivar is characterized by small flowers of an unusual blood-red color with light anthers and crinkled edges of the corolla. In twenty-two years, the bush is 1.8 m high and 2 m wide.
Winter hardiness is very good, suitable for cultivation throughout Latvia.
'VIDZEME'
♀ 'Homebush' x ♂ 'Austra' 1999 cross. Selected in 2006. Breeder Rihards Kondratovičs.
Blooms in late May, first half of June. Growth is broad shrub-like. At 18 years, the bush is 2.2 m high, 2.4 m wide.
Winter hardiness is very good, suitable for cultivation throughout the territory of Latvia.
'VIJA'
The cultivar was created by crossing ♀ Ex-5 x ♂ Rh. luteum Sweet. In 1978. The cultivar was selected in 1995, registered in 2007. Breeder Rihards Kondratovičs.
The cultivar blooms in late May, early June, very abundantly. A strong upward-growing shrub. Ten-year-old shrubs 1.5 m high and 1.5 m wide.
A winter-hardy cultivar, useful for cultivation throughout the territory of Latvia.
'UGUNS'
A seedling of the Exbury group of deciduous rhododendrons, 1971. The cultivar was selected in 1976, registered in 2000. Breeder Rihards Kondratovičs.
Blooms in late May, early June. Forms a wide, compact bush. Twenty-year-old bushes 2.5 m high and 3 m wide.
The cultivar has good winter hardiness, therefore it is suitable for cultivation throughout the territory of Latvia.
'ZEMGALE'
♀ 'Homebush' x ♂ 'Austra' 1999 cross. The cultivar was selected in 2006. Breeder Rihards Kondratovičs.
Blooms in late May, early June. Bushy growth. At 18 years, the bush is 2.4 m high, 2.4 m wide.
Good winter hardiness, suitable for cultivation in the western part of Latvia.
'ZVĀRTES IEZIS'
Rh. x kosterianum C. K. Schneid. x Rh. roseum Rehd. Crossbreeding from 1974. Selected in 2003, registered in 2017. Breeder Rihards Kondratovičs.
Blooms in the first half of June. A large, bushy shrub. In thirty years, it reaches a height of 2.5 m and a width of 3 m.
Very good winter hardiness, suitable for cultivation throughout the territory of Latvia.