Advanced Search Filters

Plant Type
Hardiness Zone
Heat Zone
Sunset Zone
Function
Sun Exposure
Soil Moisture
Water Requirement

Kniphofia uvaria

Image of Kniphofia uvaria

John Rickard

Family

Liliaceae

Botanical Name

Kniphofia uvaria

Plant Common Name

Redhot Poker

General Description

The flowers of this interesting member of the lily family look like tall upright fiery torches of orange-red and yellow. Redhot poker is a semi-evergreen, clump-forming perennial that originates from the rocky montane regions of the South African cape. It forms dense clumps of green grassy arching foliage that has a rough scabrous texture when touched. The flowers spikes are comprised of many small tubular flowers that are bright orange-red while in bud and open to bright yellow. They appear on tall stems above the foliage from midsummer to early autumn. The bright beautiful blooms are also visited by bees and hummingbirds.

Redhot poker grows best in full sun and sandy or gravelly soil with some fertility. It is especially sensitive to wet winter soils, which is why sharp drainage is so essential. Cut spent flower spikes back to keep the grassy foliage looking neat. In warm climates the foliage is fully evergreen, still it is a good idea to cut it back in spring to allow for a fresh flush of leaves. This hardy and tough perennial is super for rock gardens or mixed borders and can be cut for summer arrangements.

Characteristics

  • AHS Heat Zone

    9 - 1

  • USDA Hardiness Zone

    5 - 9

  • Sunset Zone

    2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Perennial

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    2'-4' / 0.6m - 1.2m

  • Width

    1'-2' / 0.3m - 0.6m

  • Bloom Time

    Summer, Late Summer, Early Fall

  • Native To

    South Africa

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Tolerances

    Drought

  • Growth Rate

    Medium

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Clump-Forming

  • Seasonal Interest

    Summer, Fall

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Yellow, Orange Red

  • Flower Color Modifier

    Bicolor

  • Foliage Color (Spring)

    Green

  • Foliage Color (Summer)

    Green, Blue Green

  • Foliage Color (Fall)

    Green, Gray Green

  • Foliage Color (Winter)

    Green, Gray Green

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    Yes

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    Yes

  • Foliage Texture

    Coarse

  • Foliage Sheen

    Matte

  • Evergreen

    Yes

  • Showy Bark

    No

Special Characteristics

  • Usage

    Cutflower, Foundation, Mixed Border, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Hummingbirds

  • Self-Sowing

    No