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Purple Knight Alternanthera dentata

Flower Season
  • Spring
  • Summer
  • Fall
Mature Size
20" 3'
Height: 16" - 20"
Spread: 18" - 3'
Proven Selections
  • Details

    Features

    Colorful foliage.

    Foliage Interest
    Heat Tolerant

    Characteristics

    Plant Type: 
    Annual
    Height Category: 
    Tall
    Garden Height: 
    16 - 20 Inches
    Spacing: 
    18 - 36 Inches
    Spread: 
    18 - 36 Inches
    Foliage Colors: 
    Purple
    Foliage Colors: 
    Red
    Foliage Shade: 
    mottled red and purple
    Habit: 
    Upright
    Container Role: 
    Filler

    Plant Needs

    Light Requirement: 
    Part Sun to Sun

    The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours).

    Maintenance Category: 
    Easy
    Bloom Time: 
    Grown for Foliage
    Hardiness Zones: 
    9a, 9b, 10a, 10b, 11a, 11b
    Water Category: 
    Average
    Uses: 
    Container
    Uses: 
    Landscape
    Uses Notes: 

    Containers and landscapes.

    Maintenance Notes: 

    Easy Care.

  • 2 Reviews

    5
    1
    4
    3
    1
    2
    1
    Browse reviews from people who have grown this plant.
    • Contributes such a unique color to the flower bed. Fills in a space nicely. My only criticism is that it is the first to wilt when it goes more than two days without water, but bounces back quickly once watered. Looks nice paired with chartreuse foliage, pink or orange flowers, and red or bronze coleus.

      town gardener
      , Colorado
      , United States
      , 3 years ago
    • This was my first time for alternanthera I have the purple Leaf and it did great during the North Texas summer. I had it in my yard in a container but it was to hot and had to be watered twice a day. I moved it closer to the patio where it wasn't in the direct heat and it did much better. This will be a regular in my garden its stunning...

      Delores Chambers
      , Texas
      , United States
      , 3 years ago
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