Location specific values:
Array
(
    [lat] => 41.794800
    [lng] => -87.974200
    [elevation] => 229.8699
    [rainfall] => 941.8482
    [cold_temperature] => -10.1
    [temperature] => 29.4
    [user_eto] => 923.27868024
)
Plant specific values:
Array
(
    [rain_min_irrigation] => 530
    [eto_corrected] => 1223
    [eto_adjusted_rain_min (rain_min_irrigation / eto_corrected)] => 0.43336059
)
African Flag (Chasmanthe floribunda) | Easyscape Plant Profile

African Flag

(Chasmanthe floribunda)

African Flag (Chasmanthe floribunda)

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Estimated Native Range
Species Map Help

Climate Requirements for Westmont, Illinois

This Plant Your Site Plant Suitability for Your Location
Precipitation 7" - 69" 37" Aquatic Aquatic
High Temp. 67°F - 99°F 85°F Your summer temperatures are normal for this plant. Excellent
Low Temp. 9°F - 58°F 14°F Your winter temperatures are normal for this plant Excellent
This plant may not grow well at your location - your precipitation is too high.

Summary

Chasmanthe floribunda, commonly known as African flag, is a perennial herbaceous plant native to the winter rainfall region of South Africa, particularly the Cape Province. It thrives in fynbos and coastal scrub habitats where it benefits from the wet winters and dry summers. This species typically grows up to 1 meter tall and features long, narrow, sword-like leaves. The striking spike inflorescence bears 20 to 40 tubular, bright orange-red flowers that bloom in the spring, attracting pollinators such as sunbirds with their rich nectar.

The African flag is valued for its vibrant, showy flowers and is often used in ornamental plantings, borders, and as a cut flower in floral arrangements. It requires well-drained soil, moderate water during its growing season, and a dry dormancy period in summer. Chasmanthe floribunda prefers full sun but can tolerate light shade. While generally low-maintenance, it can be susceptible to snail and slug damage. In areas where it is not invasive, it can be a striking addition to the garden, but its potential for invasiveness should be carefully considered before planting.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb, Bulb
  • Height: 4-6 feet
  • Width: 0.5-0.75 feet
  • Growth Rate: Moderate
  • Flower Color: Orange, Red
  • Flowering Season: Spring, Winter
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Full Sun
  • Water: Medium
  • Drainage: Medium

Common Uses

Border Plant, Low Maintenance, Potted Plant, Water Garden

Natural Habitat

Native to the winter rainfall region of South Africa, particularly thriving in fynbos and coastal scrub habitats

Other Names

Common Names: African Flag, Arrowroot, Aunt Eliza, Cobra Lily

Scientific Names: Chasmanthe floribunda, Antholyza floribunda, Antholyza praealta, Antkolyza aethiopica, Petamenes floribunda

GBIF Accepted Name: Chasmanthe floribunda