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BRASSICA rapa 'Purple Top White Globe'

Image of Brassica rapa 'Purple Top White Globe'

Mark A. Miller

Family

Brassicaceae

Botanical Name

BRASSICA rapa 'Purple Top White Globe'

Plant Common Name

Purple Top White Globe Turnip, Turnip

General Description

An heirloom turnip that remains highly popular, ‘Purple Top White Globe’ is grown for its tender young greens and its tasty bulbous root. This annual or biennial is one of numerous leafy vegetables belonging to Brassica rapa, which may have originated in central and southern Europe but is now cultivated and naturalized worldwide. The white, purple-capped turnips of this variety mature about 50 days after sowing. They grow to tennis ball size but are best when young and tender. The lobed leaves are good for salads, soups, and stir fries when young. They are large, rough, and somewhat leathery at maturity. The leaves grow in a loose upright rosette. Plants may "bolt" during hot weather or after prolonged chilly spells, producing tall sprays of bright yellow flowers. Rattlebox seed capsules follow, opening to scatter many reddish-brown to black seeds.

This cool weather crop prefers full sun and moderately fertile, humus-rich, slightly acid soil with ample drainage. Sow it in early spring before temperatures heat up or in late summer for fall harvesting. In areas with mild climates it makes an excellent winter crop. Bolting causes the roots to develop tough woody cores. This brassica tolerates freezing temperatures and often becomes more flavorful after frost. It is not a heavy feeder and may not need fertilizer if grown in rotation with nitrogen-fixing legumes. This wonderful vegetable is easy to grow and very tasty.

Characteristics

  • AHS Heat Zone

    9 - 3

  • USDA Hardiness Zone

    6 - 11

  • Sunset Zone

    A1, A2, A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Vegetable

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    18"-24" / 45.7cm - 61.0cm

  • Width

    8"-18" / 20.3cm - 45.7cm

  • Bloom Time

    Spring, Summer, Late Winter

  • Native To

    Europe

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam, Sand

  • Growth Rate

    Fast

  • Water Requirements

    Average Water

  • Habit

    Upright/Erect

  • Seasonal Interest

    Spring, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Yellow

  • Fruit Color

    Sienna, Black

  • Foliage Color (Spring)

    Dark Green

  • Foliage Color (Summer)

    Dark Green

  • Foliage Color (Fall)

    Dark Green

  • Foliage Color (Winter)

    Dark Green

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    Yes

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Container, Edible, Herb / Vegetable

  • Sharp or Has Thorns

    No

  • Invasive

    Sometimes

  • Attracts

    Butterflies

  • Self-Sowing

    Yes