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Sunny Knockout

Rosa 'Sunny Knockout'

a yellow rose with drops of water on it

A brilliant yellow member of the famous Knockout rose family that brings continuous bright color with virtually no maintenance required. This compact shrub rose blooms from spring until frost with cheerful yellow flowers that resist fading, making it perfect for beginning gardeners or anyone wanting reliable performance. Sunny Knockout combines the legendary disease resistance of the Knockout series with sunny disposition that brightens any landscape.

Harvest

60-70d

Days to harvest

πŸ“…

Sun

White-Tailed Deer

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Zones

5–11

USDA hardiness

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Height

1-8 feet

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Planting Timeline

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Transplant
Transplant

Showing dates for Sunny Knockout in USDA Zone 7

All Zone 7 rose β†’

Zone Map

Click a state to update dates

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Sunny Knockout Β· Zones 5–11

What grows well in Zone 7? β†’

Growing Details

Difficulty
Easy
Spacing2-3 feet
SoilAdaptable to various soil types, prefers well-draining
pH6.0-7.5
Water1-1.5 inches per week, drought tolerant once established
SeasonSpring through first frost
FlavorLight, subtle fragrance
ColorBright yellow
Size2-3 inch diameter blooms

Zone-by-Zone Planting Calendar

ZoneIndoor StartTransplantDirect SowHarvest
Zone 5β€”May – Julyβ€”β€”
Zone 6β€”May – Julyβ€”β€”
Zone 7β€”May – Juneβ€”β€”
Zone 8β€”April – Juneβ€”β€”
Zone 9β€”March – Mayβ€”β€”
Zone 10β€”March – Aprilβ€”β€”

Complete Growing Guide

Light: White-Tailed Deer, Cottontail Rabbit. Soil: Clay, Loam (Silt). Soil pH: Acid (<6.0), Neutral (6.0-8.0). Height: 1 ft. 0 in. - 8 ft. 0 in.. Spread: 1 ft. 0 in. - 6 ft. 0 in.. Spacing: Less than 12 inches, 12 inches-3 feet, 3 feet-6 feet, 6-feet-12 feet. Growth rate: Medium. Propagation: Grafting.

Harvesting

The accessory fruit is called a hip and forms after the flowers finish blooming. The hip will appear under the sepals of where the flower was after the flower dies. They will turn from green to red. They are filled with many achenes surrounded by irritating hairs.

Color: Green, Red/Burgundy. Type: Achene. Length: < 1 inch. Width: < 1 inch.

Garden value: Showy

Harvest time: Fall

Bloom time: Summer

Edibility: The fruit (called the hip) is edible.

History & Origin

Origin: Temp. & Subtropical Northern Hemisphere (such as Europe & Asia)

Advantages

  • +Disease resistance: #showy flowers#fragrant flowers#heat tolerant#rose#tsc#cottage garden#security plant#high maintenance#English garden#cutting garden#border back#tsc-s#bee friendly#container plant#patio#hedge#prickles#shrub rose#cpp#walkway#HS111#HS303#hortcontest#nesting site#fpp
  • +Wildlife value: Wildlife is attracted to the edible hips. Single-flowered species and cultivars are attractive to bees. Dead stems are used by stem-nesting bees.
  • +Edible: The fruit (called the hip) is edible.

Companion Plants

Plant Together

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Lavender

Repels aphids, moths, and deer while attracting beneficial pollinators

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Marigolds

Deters nematodes, aphids, and whiteflies with natural pest-repelling compounds

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Catmint

Repels ants, aphids, and rodents while attracting beneficial insects

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Alliums

Natural fungicide properties help prevent black spot and powdery mildew

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Clematis

Provides vertical interest and shares similar soil and water requirements

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Salvia

Attracts beneficial insects and provides complementary purple blooms

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Geraniums

Natural pest deterrent and provides continuous color throughout growing season

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Hostas

Provides contrasting foliage texture and thrives in partial shade created by roses

Keep Apart

-

Black Walnut

Releases juglone toxin that inhibits rose growth and causes wilting

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Large Trees

Competes for nutrients and water while creating excessive shade

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Brassicas

Heavy feeders that compete for nutrients and may stunt rose growth

Pests & Disease Resistance

Resistance

Excellent resistance to black spot, powdery mildew, and rust

Common Pests

Japanese beetles, aphids (minimal issues)

Diseases

Highly disease resistant, occasional rust in humid conditions

Growing Guides from Wind River Greens

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