I have a climbing rose called "Joseph's Coat of Many Colors." The colors are not changing?

The roses on this vine are supposed to be variegated in shades of red, coral and yellow. This year the roses are a deep crimson with no variegation. S

The roses on this vine are supposed to be variegated in shades of red, coral and yellow. This year the roses are a deep crimson with no variegation. Should I be feeding this plant something to make the blooms change color?

or:The roses on this vine are supposed to be variegated in shades of red, coral and yellow. This year the roses are a deep crimson with no variegation. Should I be feeding this plant something to make the blooms change color?

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