Abundant clusters of small, double to semi-double, bright red flowers cover this plant from spring until the first hard frost. 'Double Knock Out' will grow into a compact and densely formed shrub.
Great For: Accent shrub Cut flower
SUN: 4-6+ hours
SOIL: Moist Sandy
Flower Size: 2-2.5"
Flower Color: Red
Bloom Time: Summer Fall Winter
Growth Rate: Rapid
Shape: Mound Wide
Winter Protection: Mulch Straw
What Do the Sizes Mean on Trees and Shrubs?
Generally, the bigger the number, the bigger the price, the bigger the plant.
Plants with a number sign (#) followed by a number are roughly equivalent to gallon pot sizes (i.e. #2 = 2 gallon, #3 = 3 gallon and so on). These plants are sold in containers.
Plants with a height (i.e. 5-6') indicate an estimate of the current height of the plant.
Plants measured in inches (i.e. 2.5") indicate the caliper (trunk width) of the plant.
Plants measured by caliper (inches) are generally larger than plants measured in height (feet).
Plants with B&B in the size are sold as balled and burlap (not in a container).
For more information, please see this video that will show you examples and tips on selecting trees and shrubs.
Home delivery is available to the following locations:
Zone 1 (Z1): Yarmouth
Zone 2 (Z2): Cumberland, Falmouth, Freeport, North Yarmouth
Zone 3 (Z3): Bath, Brunswick, Cape Elizabeth, Durham, Gorham, Gray,
New Gloucester, Portland, Pownal, Scarborough, South Portland, Topsham, West Falmouth, Westbrook, Windham
Zone 4 (Z4): Arundel, Biddeford, Bowdoin, Bowdoinham, Dresden,
Harpswell, Kennebunk, Kennebunkport, Old Orchard Beach, Phippsburg, Saco, Wells
Zone 5 (Z5): Auburn, Bailey Island, Casco, Dayton, Gardiner, Lewiston, Lisbon, Lisbon Falls, Mechanic Falls, Ogunquit, Orr's Island, Poland, Raymond, Richmond, Sabattus, Standish, Wiscasset
Zone 6 (Z6): Augusta, Boothbay, Bridgeton, Buxton, Cape Neddick, Damariscotta, Fryeburg, Hallowell, Kittery, Limington, Monmouth, Norway, Sanford, South Paris, Springvale, Winthrop, Woolwich, York
The following pricing applies. A percentage (i.e. 10%) indicates a percentage of the order total.