Species Iris, Vesper Iris
Iris dichotoma
| Family: | Iridaceae (eye-rid-AY-see-ee) (Info) |
| Genus: | Iris (EYE-ris) (Info) |
| Species: | dichotoma (dy-KAW-toh-muh) (Info) |
| Synonym: | Evansia dichotoma |
| Synonym: | Evansia vespertina |
| Synonym: | Iris pomeridiana |
| Synonym: | Pardanthopsis dichotoma |
| Synonym: | Pardanthus dichotomus |
Class:
Height:
36-48 in. (90-120 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)
USDA Zone 10b: to 1.7 °C (35 °F)
Sun Exposure:
Full Sun
Danger:
Parts of plant are poisonous if ingested
Bloom Color:
Lavender
White/Near White
Bloom Time:
Foliage:
Deciduous
Other details:
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)
Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Awards (if applicable):
Foliage Color:
Blue-Green
Bloom Characteristics:
Water Requirements:
Average Water Needs; Water regularly; do not overwater
Where to Grow:
Regional
This plant is said to grow outdoors in the following regions:
Machesney Park, Illinois
Pinconning, Michigan
Rochester, New York
Gardeners' Notes:
| Rating | Content |
|---|---|
| Neutral | On Jan 13, 2007, sladeofsky from Louisville, KY (Zone 6b) wrote: I believe this plant has been moved to genus Iris Editor's Note The entry has been updated to reflect this change. |
| Positive | On Jul 15, 2003, hillsidecreeper wrote: This is a great plant for the night garden as the blooms last from late afternoon until after complete darkness. The iris like foliage is a great contrast to soft airy plants. I had the plant in the Black Hills of South Dakota (Zone 4b) and it always came back like a champ, it is one of my favorites and I work in a nursery. |
| Neutral | On Aug 24, 2001, Terry from Murfreesboro, TN (Zone 7a) wrote: This short-lived member of the Iris family is the only plant in its genus. Cold hardy to Zone 6, can be planted as an annual if sown in the fall and given 4-6 weeks of cold temperatures for stratification. It produces a 3-4 week display of small violet to white flowers if given full sun and plenty of water. |
