Yardlong or Asparagus Bean 'Chinese Red Noodle'

Vigna unguiculata

Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee) (Info)
Genus: Vigna (VIG-nuh) (Info)
Species: unguiculata (un-gwee-kew-LAH-tuh) (Info)
Cultivar: Chinese Red Noodle
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Vines and Climbers


4-6 ft. (1.2-1.8 m)

6-8 ft. (1.8-2.4 m)


3-6 in. (7-15 cm)

6-9 in. (15-22 cm)

Seed Type:

Open Pollinated

Growth Habit:


Sun Exposure:

Full Sun



Days to Maturity:

61 to 70 days

Bloom Color:

White/Near White

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Propagation Methods:

From seed; direct sow after last frost

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us


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

Wetumpka, Alabama

Eustis, Florida

Fruitland Park, Florida

Panama City, Florida

Jefferson, Maryland

Kingston, Massachusetts

Springfield, Missouri

Pittsboro, North Carolina

Jamestown, Ohio

Hulbert, Oklahoma

Logan, Utah

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Gardeners' Notes:


On Jul 20, 2010, kbirbeck from Pittsboro, NC (Zone 7a) wrote:

Mine are growing well in record heat and humidity. The beans grow fast! They do attract ants...at least 3 varieties & all manner of wasps. I wonder if they have a faint smell only the insects can detect.

Next year I am thinking of planting them at the borders of my garden to possibly attract the ants there (instead of elsewhere) and to attract beneficial wasps.

Oh and they taste good. I pick them young and saute them.


On Jul 28, 2008, tesaje from Jefferson, MD (Zone 6b) wrote:

This is a fun snap pole bean. The vines are prolific and the beans keep coming. You get a lot of bean out of them too since they are so long. They are a very tasty bean. They are quite skinny. What is really fun is that when you cook them, they turn a very deep purple. Other colored snap beans I've grown always turn the boring green color when cooked.

These are ornamental in the garden with the deep red color of the strands. They grow 2-3 on a stem from a big white colored flower. The flower is about an inch long and kind of flat but opens briefly into the regular legume flower form with a very pale blue color o the inside. Very easy to grow. I got my seeds from gourmetseed.com

They seem to attract ants like crazy, especially at the juncture of ste... read more


On Dec 5, 2005, Farmerdill from Augusta, GA (Zone 8a) wrote:

Deep red 18" pods are that even keep most their color when sauteed. Long vines produce all summer and do well under many conditions. Chinese ethnic variety that produces fairly early. Small red seeds.