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Bulbs, Perennials > Gladiolus > Gladiolus communis > Gladiolus communis subsp. byzantinus

Gladiolus communis

ssp. byzantinus


Gladiolus




Origin:  Eurasia, north-west Africa and Morroco, the Maltese islands and the Mediterranean region. Introduced into cultivation in 1576.
Family
Iridaceae
Genus
Gladiolus
Species
communis
Category
Bulbs, Perennials
Subspecies
byzantinus
USDA Hardiness Zone
6
Canadian Hardiness Zone
5a - 6a
RHS Hardiness Zone
H5 - H7
Temperature (°C)
-21 -(-18)
Temperature (°F)
-5 - 0
Height
50 -100 cm
Spread
10 cm
Photographs
Description and Growing Information
Flowering Period
AprilMayJuneJuly
General Description
Cormous perennial with sword-shaped leaves. It rarely sets viable seed since it is a hexaploid (90 chromosomes) and is thus usually infertile, although at times it may appear that seed capsules are ripe. All of the plants in the United Kingdom are theorized to be one identical clone propagated by cormlets.
Landscape
Cottage and informal gardens.
Cultivation
Prefers a sunny disposition with free draining soil. Plants corms in the autumn for late spring blooms. Corms are frost intolerant.
Growth
Fast
ID Characteristic
Often confused with G. italics, this species has wider, lance-like leaves and the flowers lack side tepals.
Pests
Thrips, aphids and slugs.
Flower Description
Flower colour in Africa and Morocco are typically dark red while those plants found growing in the Mediterranean are paler in colour, while white forms have been found in the Maltese Islands. There may be up to 21 flowers on a spike, with white darts on the lower petals.
Propagation
Separating cormlets when dormant.
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