Rosa 'Queen Sirikit'

Rosa 'Queen Sirikit' is a hybrid rose of 'Königin der Rosen' and 'Golden Giant Rose'. It was first introduced in 1968. Two years later it won the First Prize in a rose competition in Belfast, Northern Ireland. , Director of "Grandes Roseraiea du Val de Loire", asked permission from Queen Sirikit of Thailand to name the rose after her.

About: Rosa 'Queen Sirikit' (dbpedia.org)

 

Botanical Information

Family	Rosaceae
Genus	Rosa
Cultivar	'Queen Sirikit'
Category	Woody
Type	Shrub (deciduous)
Origin	A hybrid rose of 'Königin der Rosen' and 'Golden Giant Rose'. It was first introduced in 1968. The flower was named after Queen Sirikit of Thailand.

Details

USDA Hardiness Zone	5 - 11
USDA Hardiness Ref.
Canadian Hardiness Zone	6 - 9b
Canada Hardiness Ref.
RHS Hardiness Zone	H7 - H1c
RHS Hardiness Ref.
Temperature (°C)	-20 - 5
Flowering Period	April

Description and Growing Information

Landscape	Borders, hedges, flower beds, containers, and as a cut flower.
Propagation	Softwood cuttings can be taken once the first bloom occurs in spring to summer, hardwood cuttings should be taken in autumn.
Cultivation	Grow in full sun with fertile, humus-rich, moist but well-drained soil. For best flowering apply a balanced fertiliser and mulch in late winter or early spring and a balanced fertiliser again in early summer.
Pests	Aphids, leafhoppers, spider mites, scale insects, caterpillars, mildew, dieback, canker, viruses, rust and rose slugs.
Notable Specimens	Queen Sirikit Botanic Garden, Mae Rim District, Chiang Mai Province, Thailand.
Habitat	Horticultural origin.
Leaf Description	Deep super-glossy green, margins serrate, odd pinnate, 4 leaflets in rows with one at the tip. Medium size, up to 10 cm diameter
Flower Description	A yellow colour that turns into a yellowish orange with tints of pink at the edges of the petals under strong sunlight. The plant blooms year round, with an average flower measuring 5 – 10 cm in diameter.

World Plants