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PlantFiles: Stinking Gladwyn, Stinking Iris
Iris foetidissima

 
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Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: foetidissima (fet-uh-DISS-ih-muh) (Info)

» View all varieties of Iris

4 vendors have this plant for sale.

9 members have or want this plant for trade.

Class:
Species

Height:
24-36 in. (60-90 cm)

Spacing:
18-24 in. (45-60 cm)

Hardiness:
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)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)

Sun Exposure:
Sun to Partial Shade

Danger:
Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Pale Yellow
Purple

Bloom Time:
Late Midseason (MLa)

Foliage:
Evergreen
Aromatic
Smooth-Textured

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Non-patented

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

Awards (if applicable):
Unknown - Tell us

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There are a total of 10 photos.
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Profile:

No positives
3 neutrals
No negatives

Gardeners' Notes:

RatingAuthorComment
Neutral Joan On Nov 7, 2009, Joan from Belfield, ND (Zone 4a) wrote:


Editor's Note

Rhizomes (thickened roots) and rootstocks, fresh or dry, of all Iris species and cultivars are poisonous if ingested. Symptoms include nausea, vomiting, abdominal pain, diarrhea and elevated temperature following ingestion. Some resources claim the toxic principal (irisin, iridin, irisine) only cause low toxicity if eaten.

Skin irritation can develop upon contact with seeds, rhizomes, rootstock, or cell sap.

We tend to err on the side of caution in PlantFiles, and the danger notation in the details above is to warn gardeners, parents, and pet owners to look further for more information.
Neutral girlndocs On Mar 2, 2007, girlndocs from Tacoma, WA wrote:

The stinky smell resembles, I think, garlic. It's not very prominent on my plant unless I actually bruise or break the leaves.

I found my plant in the alley, chucked out by one of the neighbors. Don't know how long it lay out there but it responded very fast to being stuck in the soil, and even flowered that year. That's a tough plant!

I only wish the flowers were more conspicuous, I guess I'll have to find a place for this one closer to the walkway. They're pretty flowers and interesting, if not showy.

Neutral Baa On Oct 8, 2001, Baa wrote:

It always worries me when the botanical name means the smelliest.

A rhizomatous, perennial Iris from South and West Europe and North Africa.

Has sword like, evergreen, dark green leaves which is the source of the botanical name and have an unpleasent smell when crushed. Bears purple heavily tinged with yellow flowers which while 2-3 inches long are rather insignificant. The real attractive part of this plant are the seeds, the pods split open to reveal bright orange, yellow or occasionally white seeds which remain in place for some months.

Flowers May-July

Likes well drained soil in a sunny position although its not all that fussy really. Easy to grow and has good Autumn colour with the seeds.

Regional...

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

Alameda, California
Portland, Oregon
Wilkes Barre, Pennsylvania
Bremerton, Washington
Tacoma, Washington



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