Miniature Dwarf Bearded Iris
Iris 'Alpine Lake'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Alpine Lake
Hybridized by Willott
Registered or introduced: 1980
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Class:

Miniature Dwarf Bearded (MDB)

Height:

under 6 in. (15 cm)

6-12 in. (15-30 cm)

Spacing:

9-12 in. (22-30 cm)

12-15 in. (30-38 cm)

Hardiness:

USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

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)

Sun Exposure:

Full Sun

Danger:

Parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Light Blue

White/Near White

Bloom Time:

Midseason (M)

Late Midseason (MLa)

Late (La)

Foliage:

Herbaceous

Other details:

Flowers are fragrant

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)

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

Caparne-Welch Medal (MDB)

Regional

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

Perryville, Arkansas

Old Saybrook, Connecticut

Macy, Indiana

Durham, Maine

Deer River, Minnesota

Coshocton, Ohio

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Gardeners' Notes:

2
positives
1
neutral
0
negatives
RatingContent
Positive

On Apr 22, 2006, TBGDN from (Zone 5a) wrote:

This is my first year with MDB's, and I am finding some nice surprises with these, the smallest of irises. First I find them to be very hardy, having endured their first winter at their new home away from Oregon. I also noticed their willingness to bloom after less than 10 months in the soil! Alpine Lake bloomed today with four open flowers! That is remarkable, since I sometimes wait two years for a new TB to bloom. The following is from the American Iris Society's Checklist data base: (A. & D. Willott, R. 1980). Sdlg. 78-51. MDB 6" 115 cm) M-L. "S. white, slightly tinged blue; F. light blue (RHS 104D); pale blue beard. 74-46: (Carousel Princess x Gunga Din) X Greenlee GX-11., Willott 1981."

Neutral

On Dec 18, 2005, Joan from Belfield, ND (Zone 4a) wrote:

Awards: American Iris Society Honorable Mention '83, Award of Merit '86, Caparne-Welch Medal '89

Positive

On Oct 21, 2005, laurief from Deer River, MN (Zone 3b) wrote:

Most miniature dwarf beardeds (MDBs) do quite well in my growing conditions. This northern MN zone 3b climate inflicts severe, extended cold during the winter months, often with little snow cover for insulation. The summer growing season is short with temps that sometimes exceed 90 degrees F. My soil is very heavy, compacted clay with a slightly acid pH, though I grow my irises in well-amended, raised beds or windrows with improved friability and drainage. A large local deer population frequently tramples and sometimes grazes on my irises in early spring and late fall. Iris borers are present but managed successfully with a granular systemic grub control product. Weeds are abundant and only occasionally beaten back by an admittedly lazy gardener (yours truly). Fertilization is inconsistent... read more