Plant Lust
ShopOrderSellblog
0

  • Plant types

  • Plant styles

  • Planting conditions

  • Seasonal interest

  • Nurseries & Gardens

    • Photo of Rhaponticoides ruthenica by Arrowhead Alpines

    Photo by Arrowhead Alpines

    Used with permission, all rights reserved

    Show all photos

    Rhaponticoides ruthenica

    Also Known As

    • Centaurea ruthenica
    • Knapweed

    Plant type

    perennial

    size

    • H: 3'-4'
    • W: 2'

    planting zones

    • 5a-9b

    More Options

    Rhaponticoides ruthenica plant details

    Rhaponticoides ruthenica is a broadleaf deciduous perennial with green foliage. In fall and summer cream and yellow flowers emerge. Grows well with sun and regular - low water. Does well in average and well-drained soil. A good option if you're seeking something heat tolerant.

    CHARACTERISTICS OF Rhaponticoides ruthenica

    Plant type: perennial
    Plant family: asteraceae
    Foliage: deciduous green
    Mature size: 2 FT wide, 3 FT - 4 FT - tall
    Flowers: cream and yellow blooms in fall and summer

    GROWING CONDITIONS for Rhaponticoides ruthenica

    USDA Zones: 5a - 9b
    Sun exposure: sun
    Watering frequency: regular - low
    Resistant to: heat
    Soil needs: average and well-drained

    Nursery contributed plant descriptions

    “A border flower of the highest merit,” is how British horticulturist, William Robinson once described this awe-inspiring Centaurea, and we couldn’t agree more! Crowning long straight green stems, the fluffy thistle-style heads in unique pale citron yellows and tissue-thin buff-colored bracts will attract more than a few admirers. These ample-sized, sublime-for-cutting blooms heighten a graceful ferny pedestal of rich green pointed leaves with gray undersides, narrow silhouettes and a refined countenance. Appreciative of adequately draining soil, the ever amenable Knapweed withstands some drought, but not wet winter feet.

    By: Digging Dog Nursery

    Native to the Transylvanian Alps, ruthenica has narrow dark green foliage and large sulfur yellow pompom flowers atop 120cm stems. It is a most impressive plant for the back of the border perhaps as a backdrop for Centaurea montana. ZONE 5

    By: Arrowhead Alpines

    Gardening facts about Rhaponticoides ruthenica plant

    How to Grow Rhaponticoides ruthenica

    • Sun Exposure

      • sun

    • Water Needs

      • regular - low

    • Soil Needs

      • average
      • well-drained

    • Special Situation

      • heat tolerant

    Features

    • Foliage Color

      • green

    • Flower Color

      • cream
      • yellow

    • Flower Season

      • summer
      • fall

    • Foliage Season

      • deciduous

    Landscape groups by tags

    Mailing List
    Sign Up for updates on new plant arrivals and deals

    © 2010—2024 Plant Lust, LLC All Rights Reserved