Gladiolus, Gladiola 'Blue Isle'

Gladiolusx hortulanus

Family
Iridaceae (eye-rid-AY-see-ee)
Genus
Gladiolus (GLAD-ee-oh-lus)
Species
x hortulanus (hor-tew-LAY-nus)
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
36-48 in. (90-120 cm)
Spacing
6-9 in. (15-22 cm)
Hardiness
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)
Danger
Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Bloom Color
Dark Blue
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
Bulbs
Tropicals and Tender Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Flowers are good for cutting
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
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
Regional

This plant is said to grow outdoors in the following regions:

Dallas, Georgia

Hamburg, Pennsylvania

Knoxville, Tennessee

Hemphill, Texas

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Gardener's Notes:

1
positive
0
neutral
0
negative
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Charleston, SC (Zone 9a) | June 2005 | positive

Mine are really more of a blue lavendar, but I like them very much just the same. Also note that the color looks great with various shade...Read More

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