Thornless Roses - Knowledgebase Question

Camarillo, CA
Question by maryh9
January 17, 2000
Are there thornless roses? What are their names? Will they grow in California?


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Answer from NGA
January 17, 2000

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blooms certainly bear up to that name. Flowers are deep rose-pink with at least a third of the center petals a cream-white. The blooms are large, cupped and form in clusters. It grows to about 8 ft. (2.4 m), and is rated an 8.5 ("excellent") by those ARS rosarians who grow it.

'Nevada' is a Species rose that produces pink or apricot buds which open to large, white single blossoms. Sometimes the petals' reverse sided are splashed with carmine. A vigorous grower to 7 ft. (2.1 m), this rose will repeat in the fall with a second heavy flush. It is rated an 8.8 (a very high "excellent") by the ARS.

'Lady Banks Rose' or R. banksiae comes in two "flavors" - white and yellow. This once-blooming species rose can grow quite large in southern climates with mild winters. In fact, the largest rose in the world is a "double" white 'Lady Banks'(R. banksiae banksiae) and covers, at last count, more than 8000 sq. ft. The small size of the blossom is more than made up for by the huge clusters it produces along its thornless stems. The white version is rated 9.5 (an almost-as-high-as-you-can-get "outstanding") and the yellow (R. banksiae lutea) is rated 9.1 ("outstanding"). blooms certainly bear up to that name. Flowers are deep rose-pink with at least a third of the center petals a cream-white. The blooms are large, cupped and form in clusters. It grows to about 8 ft. (2.4 m), and is rated an 8.5 ("excellent") by those ARS rosarians who grow it.

'Nevada' is a Species rose that produces pink or apricot buds which open to large, white single blossoms. Sometimes the petals' reverse sided are splashed with carmine. A vigorous grower to 7 ft. (2.1 m), this rose will repeat in the fall with a second heavy flush. It is rated an 8.8 (a very high "excellent") by the ARS.

'Lady Banks Rose' or R. banksiae comes in two "flavors" - white and yellow. This once-blooming species rose can grow quite large in southern climates with mild winters. In fact, the largest rose in the world is a "double" white 'Lady Banks'(R. banksiae banksiae) and covers, at last count, more than 8000 sq. ft. The small size of the blossom is more than made up for by the huge clusters it produces along its thornless stems. The white version is rated 9.5 (an almost-as-high-as-you-can-get "outstanding") and the yellow (R. banksiae lutea) is rated 9.1 ("outstanding").

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