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AUBRIETA 'Doctor Mules'

Image of Aubrieta 'Doctor Mules'

Family

Brassicaceae

Botanical Name

AUBRIETA 'Doctor Mules'

Plant Common Name

Doctor Mules Purple Rockcress, Purple Rockcress

General Description

The brilliant violet-purple flowers of ‘Doctor Mules’ add a striking color burst to sunny borders. This mat-forming, semi-evergreen perennial becomes clothed in flowers in late spring to early summer. Its blooming period lasts for an average of three weeks, sometimes even a month. The vivid flowers and play beautifully against its grayish blue-green mats of foliage.

Sunny locations with fertile, neutral to alkaline, well-draining soil are preferred. It should be watered regularly before and after blooming but can be allowed to get a little drier later in the season. This perennial does not divide easily and is best left alone to spread and flourish. Rockcress is short-lived in gardens with hot summers but thrives in areas with cool or moderate summers. Propagate by seed or cuttings.

This true alpine looks best in sunny rock or alpine gardens, between stepping stones or cascading from chinks in stone walls. The pretty variegated form, 'Doctor Mules Variegata' has foliage edged in cream but is a bit less vigorous.

Characteristics

  • AHS Heat Zone

    7 - 5

  • USDA Hardiness Zone

    5 - 7

  • Sunset Zone

    1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21

  • Plant Type

    Perennial

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    4"-6" / 10.2cm - 15.2cm

  • Width

    10"-20" / 25.4cm - 50.8cm

  • Bloom Time

    Late Spring, Early Summer

  • Native To

    Hybrid Origin

Growing Conditions

  • Soil pH

    Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Growth Rate

    Fast

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Mat-forming

  • Seasonal Interest

    Spring, Summer

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Purple, Violet

  • Foliage Color (Spring)

    Blue Green, Gray Green

  • Foliage Color (Summer)

    Blue Green, Gray Green

  • Foliage Color (Fall)

    Blue Green, Gray Green

  • Foliage Color (Winter)

    Blue Green, Gray Green

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • 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

    Semi-Evergreen

  • Showy Bark

    No

Special Characteristics

  • Usage

    Alpine, Container, Mixed Border, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    No