Photo by Melody

PlantFiles: Hybrid Asparagus
Asparagus officinalis 'Jersey Knight'

Family: Liliaceae (lil-ee-AY-see-ee) (Info)
Genus: Asparagus (a-SPARE-uh-gus) (Info)
Species: officinalis (oh-fiss-ih-NAH-liss) (Info)
Cultivar: Jersey Knight

4 vendors have this plant for sale.

8 members have or want this plant for trade.


36-48 in. (90-120 cm)

9-12 in. (22-30 cm)

USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Full Sun

Unknown - Tell us

Bloom Color:
Unknown - Tell us

Bloom Time:
Unknown - Tell us


Other details:
Unknown - Tell us

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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2 positives
1 neutral
No negatives

Gardeners' Notes:

Positive RebeccaLynn On Apr 16, 2011, RebeccaLynn from Winston Salem, NC (Zone 7a) wrote:

I planted Jersey Knight crowns in my asparagus bed a couple of years after starting the bed with Mary Washingtons.
I believe that the J. Knights bear more harvestable speers than M. Washington, but I can't tell one from the other for sure until late summer when the M. Washingtons produce red berries. I continue to enrich my 5" x 16' bed with leafy compost, cow manure, and rotted sawdust. This spring we are enjoying an early harvest of plump, delicious speers, due to warm weather and plentiful rainfall since March.

Positive handsodragon On Mar 25, 2008, handsodragon from Indiana, IN (Zone 5b) wrote:

I decided to start this plant from seed. Every seed that I planted came up. I'll see how good they grow further in the year. They show good potental right now.

Neutral Farmerdill On Mar 31, 2006, Farmerdill from Augusta, GA (Zone 8a) wrote:

Adapted to temperate, warm and cool climates. High yield potential with very high marketable yields. Spear size and color is comparable to the Jersey Giant. Very high rust resistance.


This plant has been said to grow in the following regions:

Mishawaka, Indiana
Ashland, Kentucky
Lunenburg, Massachusetts
Warsaw, Missouri
Southold, New York
Winston Salem, North Carolina
Columbus, Ohio
Brookhaven, Pennsylvania
Selinsgrove, Pennsylvania
Wilkes Barre, Pennsylvania
Brookshire, Texas

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