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POLEMONIUM boreale 'Iceberg Point'

Image of Polemonium boreale 'Iceberg Point'

Family

Polemoniaceae

Botanical Name

POLEMONIUM boreale 'Iceberg Point'

Plant Common Name

Northern Jacob's Ladder

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

A circumboreal plant, northern Jacob's ladder is a low-growing herbaceous perennial native across the lands surrounding the Arctic Ocean. The selection 'Iceberg Point' is unique with its silvery green foliage and flowers of purplish blue-violet with a white center eye. The foliage is nearly fern-like with the many oval leaflets on each leaf. Leaves are a highly glossy green with a silver sheen.

Grow 'Iceberg Point' in cool conditions and moist, well drained soil. Deadhead expired flower stems to prolong bloom and prevent self-sowing. This selections works well in a partially shaded rockery or mixed border.

Characteristics

  • AHS Heat Zone

    6 - 1

  • USDA Hardiness Zone

    3 - 6

  • Sunset Zone

    A1, A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7

  • Plant Type

    Perennial

  • Sun Exposure

    Partial Sun, Partial Shade

  • Height

    10"-12" / 25.4cm - 30.5cm

  • Width

    16"-22" / 40.6cm - 55.9cm

  • Bloom Time

    Late Spring, Early Summer, Summer

  • Native To

    Alaska, Canada, Northern Europe, Russia/Siberia

Growing Conditions

  • Soil pH

    Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Loam

  • Growth Rate

    Medium

  • Water Requirements

    Average Water

  • Habit

    Upright/Erect

  • Seasonal Interest

    Spring, Summer, Fall

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Purple, Blue Violet, Ivory

  • Flower Color Modifier

    Bicolor

  • Fruit Color

    Brown

  • Foliage Color (Spring)

    Green, Silver

  • Foliage Color (Summer)

    Dark Green, Silver

  • Foliage Color (Fall)

    Dark Green, Silver

  • 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

    Fine

  • Foliage Sheen

    Glossy

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Alpine, Container, Cutflower, Mixed Border, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    Yes