Rosa x ‘Double Knock Out’

Plant name: Rosa x ‘Double Knock Out®’

Virtues: A close relative of the famous ‘Knock Out’ rose the ‘Double Knock Out’ grows in full sun with adequate moisture throughout the summer. It does not require deadheading to continue blooming and thrives in humid climates without spraying. ‘Double Knock Out’ combines the disease-resistant attributes of ‘Knock Out’ with an abundance of double, cherry-red flowers.

Bloom color: Small, bright, double cherry-red blooms.

Leaf/Foliage: The new growth is a stunning burgundy red, which turns to a healthy green.

Goes great with: ‘Double Knock Out’ goes great in a landscape border with ‘Lemon Daddy’ hydrangea, Evison-Poulsen Festoon Series clematis, and combinations of Bring on the Heat and In the Shade varieties from Novalis Plants that Work.

Habit: 4 feet by 4 feet when mature. Small habit makes it perfect for small gardens.

Season: Early spring to late fall, depending on the zone in which it grows.

Suggested by: Linda Guy, new plant development director at Novalis Plants that Work (

Where does it come from / origin: Bred by Bill Radler and introduced by Novalis Plants that Work.

Tips: USDA hardiness zones 4-9.

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