Photo by Melody

PlantFiles: Snap Bean (String, Green or French Bean)
Phaseolus vulgaris 'Purple Queen'

Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee) (Info)
Genus: Phaseolus (FAZ-ee-oh-lus) (Info)
Species: vulgaris (vul-GAIR-iss) (Info)
Cultivar: Purple Queen

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One member has or wants this plant for trade.


12-18 in. (30-45 cm)

3-6 in. (7-15 cm)

Seed Type:
Open Pollinated

Growth Habit:

Sun Exposure:
Full Sun

Unknown - Tell us

Days to Maturity:
41 to 50 days

Bloom Color:

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
Properly cleaned, seed can be successfully stored

Click thumbnail
to view:

By Farmerdill
Thumbnail #1 of Phaseolus vulgaris by Farmerdill


2 positives
1 neutral
No negatives

Gardeners' Notes:

Positive CurtisJones On Feb 15, 2008, CurtisJones from Longmont, CO wrote:

These beautiful deep purple pods magically turn a deep forest green when cooked. They have great fresh flavor, also good canned or frozen. As a snap bean (or ‘green’ bean), it is eaten pod and all and is one of those vegetables like tomatoes that taste significantly better when grown at home than bought at the grocery store. Purple Queen is a compact plant with round, slightly curved dark purple pods that are easy to find when harvesting. Try growing them in containers for an attractive edible planting. This packet plants: One 10-foot row.
When to plant outside: RECOMMENDED. Sow in spring, after average last frost. If the weather is cold and wet, wait for warmer weather. Note: In very hot summer areas such as the south and southwest, plant in March for June harvest and in August for late September harvest.
When to start inside: Not recommended.
Special Germination Instructions: It isn’t absolutely necessary, but seeds can be treated with an inoculant containing nitrogen-fixing bacteria. This may help plant growth and production if you are planting beans or peas in an area for the first time. Beans need good air circulation, thus the recommended distance between rows of 3’-4’. Seeds that do not come up can be immediately replaced. BUY NEW SEED EVERY YEAR. Bean seed does not store well and old seed is a big contributor to home garden failure.

Neutral melody On Oct 31, 2005, melody from Benton, KY (Zone 7a) wrote:

Information only, I have not grown this plant yet.

These bright purple 5 1/2" pods are often used to add color to salads. As with other purple colored beans, they turn green when cooked.

Tan seeds and upright plants.

Positive Farmerdill On Dec 10, 2003, Farmerdill from Augusta, GA (Zone 8a) wrote:

In comparison to Royalty and Royal Burgundy, this is the heaviest yielding and most flavorful purple podded snap bean. There are still a few that I have not tried, but this one is excellent. Round pods about 6 inches long.


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

Longmont, Colorado
Augusta, Georgia

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