Rhododendron 'Fireball'

*Rhododendron* 'Fireball'
Rhododendron 'Fireball'
Taxonomy
Kind	Rhododendron
Grade	'Fireball'
Origin
Parents
	'Scarlet Pimpernel' × 'Favor Major'
Country of origin	Great Britain
Breeder	Edmund de Rothschild , before 1951
Awards
	AGM : 2002 RHS;

Rhododendron 'Fireball' is a variety of hardy deciduous deciduous rhododendrons .

Ornamental garden plant, used in breeding programs aimed at creating winter-hardy varieties of deciduous rhododendrons and as a model plant in biological research.

Not to be confused with 'Fireball' Richard Gill & Sons R., 1925 ^[1] .

Content

Origin

?

'Scarlet Pimpernel'

?

' Fireball'

?

'Favor Major'

?

Biological Description

Deciduous shrub, at the age of 10 years, height about 150-160 cm, width 120 cm. The bush is vertical.

The leaves are glossy, young brown-red, in the summer dark green, in the fall of bronze color.

Inflorescences bear 7-10 flowers.

The flowers are funnel-shaped, dark red with an orange tint, about 6.5 cm in diameter. The aroma is absent or very weak.

Flowering in late May - mid-June ^[2] ^[3] .

In Culture

It withstands temperature drops to −29 ° С ^[2] . In the conditions of the Nizhny Novgorod region, with a crown height of 1 m, it is winter-hardy ^[4] .

The variety has good resistance to powdery mildew , but in certain conditions it may be susceptible to this disease ^[5] .

Diseases and Pests

Literature

Filipenya V.L. ; Gorbatsevich V.I. ; Antipova T.V. Microclonal propagation of Rhododendron × hybridum hort // Physiology and Biochemistry of Cultivated Plants: Journal. - 2009. - T. 41 , No. 6 . - S. 516-522 .
Werner M., Karolewski Z. The occurrence of powdery mildew on deciduous Rhododendron in Poland // Phytopathologia. - 2010. - No. 57 . - S. 31-38 . Archived November 12, 2013.

Notes

↑ Comparison of Rhododendron 'Fireball' Richard Gill & Sons, 1925 and Rhododendron 'Fireball' Edmund de Rothschild ], 1951] (German) . Deutsche Genbank Rhododendron. Date of treatment November 6, 2013.
↑ ¹ ² Description of Rhododendron 'Fireball' . American Rhododendron Society. Date of treatment November 6, 2013.
↑ Rhododendron 'Fireball' Edmund de Rothschild (vor 1951) (German) . Deutsche Genbank Rhododendron. Date of treatment November 6, 2013.
↑ Mishukova I.V., Khrynova T.R. Results of the introduction of rhododendrons at the Research Institute of Botanical Gardens of the Nizhny Novgorod State University // Bulletin of the Nizhny Novgorod University. N.I. Lobachevsky. - 2014. - No. 3-3 .
↑ Michael C. Long1, Stephen L. Krebs, Stan C. Hokanson. Field and Growth Chamber Evaluation of Powdery Mildew Disease on Deciduous Azaleas // HortScience: Scientific Journal. - 2010 .-- Vol. 45 , no. 5 . - P. 784-789 .

[1] Comparison of Rhododendron 'Fireball' Richard Gill & Sons, 1925 and Rhododendron 'Fireball' Edmund de Rothschild ], 1951] (German) . Deutsche Genbank Rhododendron. Date of treatment November 6, 2013.

[Society-2] ¹ ² Description of Rhododendron 'Fireball' . American Rhododendron Society. Date of treatment November 6, 2013.

[lwk-niedersachsen-3] Rhododendron 'Fireball' Edmund de Rothschild (vor 1951) (German) . Deutsche Genbank Rhododendron. Date of treatment November 6, 2013.

[4] Mishukova I.V., Khrynova T.R. Results of the introduction of rhododendrons at the Research Institute of Botanical Gardens of the Nizhny Novgorod State University // Bulletin of the Nizhny Novgorod University. N.I. Lobachevsky. - 2014. - No. 3-3 .

[5] Michael C. Long1, Stephen L. Krebs, Stan C. Hokanson. Field and Growth Chamber Evaluation of Powdery Mildew Disease on Deciduous Azaleas // HortScience: Scientific Journal. - 2010 .-- Vol. 45 , no. 5 . - P. 784-789 .