‘Yellow Knock Out’ Rose Rosa ‘Radsunny’ Type:shrubs Notable Traits:fast-growingfragrantgreat cut flowers Hardiness:Zone 4 – 11 Mature Height:3-4ft Light:sun (8+ hrs) Water:drought tolerant Bloom Color:yellow Foliage:green Description One of the most fragrant members of the Knock Out family with a slightly more upright habit and bright yellow flowers that fade quickly to a pastel cream. The yellow color stays more intense during cooler temperatures.