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botanical name:
Brassica oleracea (Acephala Group) 'Redbor'
Brassica oleracea (Acephala Group) 'Redbor' © Deeproot Plant Base
common name:  Kale 'Redbor', Curly Kale, Borecole
synonyms:  Brassica oleracea var. acephala 'Redbor'
family:  Brassicaceae
characteristics: annual/biennial
height: 0.60m
width: 0.45m
growth rate: medium
growth habit:
leaf colour: purple
flower colour: white
stem/bark: maroon
main season: Winter
edible symbol edible
aspect: full sun
conditions: moist soil, clay soil
preferred soil pH: neutral
minimum temp: -18°C
USDA zone: 7 to 10
description:
Culinary vegetable, F1 hybrid, biennial but normally grown as an annual. Tall, open habit with very curly, dark mahogany to dusky deep purple leaves.

cultivation:
Moist, fertile, neutral or alkaline soil in full sun. Tolerant of poorer soils and conditions than most other Brassica vegetables. Very hardy.
Cropping is from late autumn through winter, into spring. Cut leaves as required.
Susceptible to clubroot disease.

propagation:
From seed, sown in containers or directly, from March onwards. Late sowings can be made in July for over-wintering. Transplant container grown seedling to open ground in summer, spacing at about 45cm.

usage:
Edible leaves with a good flavour.
The attractive leaves also have ornamental value.

other notes:
RHS AGM
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