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botanical name:
Gladiolus 'Black Jack'
Gladiolus 'Black Jack' © Deeproot Plant Base
family:  Iridaceae
characteristics: perennial
height: 1.00m
width: 0.15m
growth rate: medium
growth habit: bulb/corm
leaf colour: green
flower colour: red
main season: Summer
poison symbol poisonous or irritant
aspect: full sun
conditions: moist soil, sandy soil
preferred soil pH: neutral-acid
minimum temp: -4°C
USDA zone: 8 to 11
description:
One of the darkest flowered Gladiolus with large, deep garnet-red blooms carried on tall stems.

cultivation:
Fertile, well drained soil, a sandy loam with a Ph of 6 to 6.5 is ideal. Needs full sun but adequate moisture to flower well.
Corms should be planted in spring, 10 to 16cm deep. A layer of sharp sand below the corms is helpful to improve drainage in wet soils.
In frost-prone areas, lift and dry the corms for storage over winter.

usage:
Cut flower.

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