Louisiana Iris
Iris 'Professor Neil'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Professor Neil
Hybridized by Mertzweiller
Registered or introduced: 1990
» View all varieties of Iris

Class:

Louisiana (LA)

Height:

24-36 in. (60-90 cm)

Spacing:

12-15 in. (30-38 cm)

15-18 in. (38-45 cm)

18-24 in. (45-60 cm)

Hardiness:

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:

Scarlet (Dark Red)

Bright Yellow

Bloom Time:

Midseason (M)

Foliage:

Herbaceous

Other details:

Flowers are fragrant

Requires consistently moist soil; do not let dry out between waterings

Very high moisture needs; suitable for bogs and water gardens

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

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

Awards (if applicable):

Honorable Mention

Award of Merit

Mary Swords DeBaillon Medal (LA)

Regional

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

Phoenix, Arizona

Tucson, Arizona

Baton Rouge, Louisiana

Austin, Texas

Gardeners' Notes:

0
positives
2
neutrals
0
negatives
RatingContent
Neutral

On Apr 10, 2006, Margiempv from Oro Valley, AZ (Zone 9a) wrote:

S. dark red; F. velvety dark red, large brilliant yellow signal; musky fragrance.
Sib to Professor Barbara.,
Introduced by: Cordon Bleu 1992.

Awards: HM 1995, AM 1997, DeB 1999"

Neutral

On Jan 2, 2006, Joan from Belfield, ND (Zone 4a) wrote:

Awards: Mary Swords DeBaillon Medal 1999