Commercially available

• MORyelrug
• Topaz Jewel
• Yellow Dagmar Hastrup

Also referenced as:  Yellow Fru Dagmar Hartopp,  Gelbe Dagmar Hastrup,  Yellow Fru Dagmar,  Rosa rugosa 'Yellow Dagmar Hastrup',  Gul Dagmar Hastrup

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Medium yellow Hybrid Rugosa.
Registration name: MORyelrug
Exhibition name: Topaz Jewel

Bred by Ralph S. Moore (United States, 1987).
Introduced in United States by Moore Miniature Roses in 1987.
Introduced in United States by Wayside Gardens in 1987.

Hybrid Rugosa, Shrub.  

Yellow.  Strong, fruity fragrance.  20 petals.  Average diameter 3.5".  Semi-double to double bloom form.  Occasional repeat later in the season.  

Height of 2' to 5' (60 to 150 cm).  Width of up to 7' (up to 215 cm).

USDA zone 4b through 8b.  Shade tolerant.  Disease susceptibility: blackspot resistant.  

United States - Patent No: PP 6,793  on  9 May 1989   VIEW USPTO PATENT
Application  on  7 Dec 1987

Diploid

Corn Hill Nursery says this is one of the few repeating yellows that will grow in colder climates. The semi-double lemon yellow blossoms are loose and blowsy with a pleasing fragrance...

According to the New Zealand Plant Variety Rights (PVR) web page, application for a PVR Grant for this rose was made November 17, 1993 and granted August 30, 1995 (PVR Grant No. 1021). The breeder's Reference for this rose is Moryelrug. The New Zealand Trade Name is 'Topaz Jewel'. This PVR Grant expires August 30, 2018.

[Not to be confused with 'Yellow Fru Dagmar Hartopp'. Does not set hips.]