Double Knockout Roses: Low‑Maintenance, Disease‑Resistant, Doubly Beautiful

Double Knockouts take the legendary disease resistance of the original Knockout and add lush, double petals in pink or red. They bloom spring to frost, need no deadheading, and thrive in zones 5–9. Landscapers love them; home gardeners do too.

Planting

• After last frost.
• Sun or part shade.
• Moist, well‑drained, slightly acidic soil (pH 5.6–6.8).
• Amend with compost/organic fertilizer.
• Hole 2× root ball. Space 3 ft apart.
• Water deeply.

Care Regimen

Water

Keep soil consistently moist until established. Then reduce frequency. Irrigate soil—not foliage.

Feed

Monthly slow‑release organic rose fertilizer (or less often). Tolerates lean soil but blooms better fed.

Prune

• Spring (after last frost): cut to 12–18″ above ground for heavy bloom.
• Remove weak twigs anytime.
• Natural size: 3–4 ft H × 3 ft W.

Winter (Cold Zones)

• Stop feeding; allow dormancy.
• Mound 12″ straw around base or plant on leeward side.
• Remove mound in spring.

Disease Resistance

Highly resistant to powdery mildew, black spot, rust. No special sprays needed.

Double Knockouts = knockout performance with double the petals. Plant, water, enjoy.