Purple Fantasy Knotweed Persicaria runcinata 'Purple Fantasy'

👤 Non-toxic to humans
🐾 Non-toxic to pets
🌸 Not blooming
🍪 Not edible
‍🌱 Easy-care
knotweed 'Purple Fantasy'


Persicaria runcinata 'Purple Fantasy,' also known as Painter's Palette, is a distinctive and colorful plant. Its standout feature is its foliage, which boasts a unique combination of colors and patterns. The leaves are arrowhead-shaped with a rich, deep purple hue as the main background color. Irregular splashes and swirls of silver and green decorate each leaf, creating a marbled or painted effect that is quite eye-catching. The foliage often exhibits a glossy finish, which enhances the vibrancy of the colors and makes them seem even more luminous, especially when they catch the light. This variegation and the metallic sheen of the leaves are whimsical and give the plant a very ornamental look, adding aesthetic appeal to any garden setting. In contrast to the bold leaves, the plant produces small, subtle flowers. These flowers are typically an inconspicuous greenish-white or pinkish hue and may appear on slender spikes. However, they are often overlooked as the foliage tends to be the main attraction of this striking plant.

Plant Info
Common Problems

About this plant

  • memoNames

    • Family


    • Synonyms

      Purple Fantasy Knotweed, Purple Fantasy Fleece Flower

    • Common names

      Persicaria runcinata 'Purple Fantasy'.

  • skullToxicity

    • To humans

      As of my last update, there is limited information available regarding the toxicity of 'Purple Fantasy' to humans. Therefore, it is not concretely known if this plant is poisonous or what symptoms might occur if ingested. However, as a general caution, it is advisable to avoid eating ornamental plants due to potential toxicity and the 'Purple Fantasy' should be treated with the same level of care until more information is available.

    • To pets

      There is limited information available regarding the toxicity of 'Purple Fantasy' to pets. Specific toxic effects and symptoms of poisoning in pets, such as dogs or cats, resulting from ingestion of this plant are not well-documented as of my last update. As with all ornamental plants, it is prudent to prevent pets from ingesting 'Purple Fantasy' due to the potential for unknown toxic effects.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      3-4 feet (0.91-1.22 meters)

    • Spread

      3-4 feet (0.91-1.22 meters)

    • Plant type


    • Hardiness zones


    • Native area



  • money-bagGeneral Benefits

    • Aesthetic Appeal: Adds a splash of color to gardens with its purple-patterned leaves and attractive foliage.
    • Low Maintenance: Requires minimal care once established, making it ideal for both novice and experienced gardeners.
    • Drought Tolerance: Can withstand periods of low water, reducing the need for frequent irrigation.
    • Rapid Growth: Grows quickly to create ground cover or fill in garden spaces efficiently.
    • Soil Erosion Control: Helps prevent soil erosion when planted on slopes or in areas prone to water runoff.
    • Companion Plant: Works well when planted alongside other garden plants, providing contrast and enhancing overall garden design.
    • Wildlife Attraction: Attracts beneficial insects, which can help with pollination and natural pest control in the garden.
    • Seasonal Interest: Offers visual interest throughout the growing season with its changing leaf patterns and colors.

  • medicalMedical Properties

    This plant is not used for medical purposes.

  • windAir-purifying Qualities

    This plant is not specifically known for air purifying qualities.

  • leavesOther Uses

    • Persicaria 'Purple Fantasy' can serve as a natural dye source, as its vibrant leaves may offer unique color hues for artisanal fabrics.
    • The plant can be used in educational settings for botany students to study leaf pigmentation and color variation in plants.
    • 'Purple Fantasy' can act as a muse for artists and designers, providing inspiration with its intricate leaf patterns and shades of purple.
    • This cultivar can be utilized in photography as a striking background or subject due to its distinctive foliage.
    • Persicaria 'Purple Fantasy' can be planted in maze and labyrinth gardens as a visually intriguing and distinctive border plant.
    • The plant is ideal for creating themed gardens, such as Gothic or 'black gardens', due to its dark foliage.
    • In culinary presentations, 'Purple Fantasy' leaves can be used as an alluring garnish to enhance the visual appeal of dishes.
    • This persicaria variety can be used in crafting, such as in the creation of natural and biodegradable confetti or decorations.
    • 'Purple Fantasy' can be integrated into performance art or fashion displays, where its dramatic appearance can complement costumes or staging.
    • The plant is suitable for use in creating temporary natural art installations, as it can add stunning visual contrast against green landscapes.

Interesting Facts

  • bedFeng Shui

    The plant Purple Fantasy is not used in Feng Shui practice.

  • aquariusZodiac Sign Compitability

    The plant Purple Fantasy is not used in astrology practice.

  • spiralPlant Symbolism

    • Transformation: The 'Purple Fantasy' variety of Persicaria runcinata, with its unique foliage that transitions from green to deep purple, represents change and the beauty of transformation.
    • Versatility: Persicaria plants often thrive in a variety of conditions, symbolizing adaptability and resilience in various environments and situations.
    • Growth: Like many plants, Persicaria runcinata 'Purple Fantasy' symbolizes growth, both physical and personal, as it proliferates throughout the growing season.
    • Creativity: The striking patterns and colors of the 'Purple Fantasy' leaves suggest creativity and imagination, inspiring one to think outside the box.

Every 1-2 weeks
2500 - 10000 Lux
Every 2-3 years
As needed
  • water dropWater

    The Mile-a-Minute vine, commonly known as Persicaria runcinata 'Purple Fantasy', requires consistent moisture, but it is important not to overwater to avoid waterlogging. Water the Mile-a-Minute thoroughly once the top inch of soil starts to dry out, which may be roughly once a week, depending on the climate and indoor conditions. Using a watering can, aim to apply water directly to the soil rather than over the foliage to reduce the risk of fungal diseases. A guideline to follow is approximately 16 ounces of water per square foot of soil every week, but always adjust according to your plant's response and the environmental conditions.

  • sunLight

    The Mile-a-Minute prefers bright, indirect light for optimal growth. Place it in a spot where it can receive ample light without being exposed to the harsh afternoon sun, which can scorch the leaves. An east-facing or north-facing window is typically ideal, providing a balance of light throughout the day.

  • thermometerTemperature

    Mile-a-Minute thrives in temperate conditions, with an ideal temperature range of 60 to 75 degrees Fahrenheit. It can tolerate temperatures as low as 50 degrees Fahrenheit and as high as 80 degrees Fahrenheit. Always protect the Mile-a-Minute from drastic temperature fluctuations and cold drafts to prevent stress and damage.

  • scissorsPruning

    Pruning the Mile-a-Minute helps maintain its shape and encourages a denser, bushier growth. It's best to prune in late winter or early spring before new growth begins. Trim back overgrown shoots and remove any dead or damaged leaves. Pruning can be done every few months or as needed to keep the plant looking its best. Always use clean, sharp pruning shears to make clean cuts.

  • broomCleaning

    As needed

  • bambooSoil

    Painter's Palette prefers a soil mix that is well-draining, rich in organic matter, and slightly acidic to neutral in pH (6.0-7.0). A mixture of potting soil, compost, and perlite or vermiculite can create an ideal environment for this plant to thrive. Such a blend ensures proper moisture retention while allowing excess water to drain, preventing root rot.

  • plantRepotting

    Painter's Palette should be repotted every 2-3 years or when it becomes root-bound. This is typically evident when roots start to grow through the drainage holes or the plant's growth seems stunted. Spring is the best time to repot to minimize stress on the plant and to give it a fresh start for the growing season.

  • water dropsHumidity & Misting

    Painter's Palette prefers moderate to high humidity levels but is adaptable to average indoor humidity. While it can tolerate humidity levels as low as 40%, it thrives best when the humidity is kept around 60% or higher. To increase humidity, you can use a humidifier or place the pot on a tray of wet pebbles.

  • pinSuitable locations

    • Indoor

      Provide bright, indirect light and keep soil moist.

    • Outdoor

      Plant in partial shade, keep soil moist, protect from frost.

    • Hardiness zone

      4-8 USDA

  • circleLife cycle

    Persicaria runcinata 'Purple Fantasy', commonly known as 'Purple Fantasy Knotweed', begins its life cycle as a seed, which when germinated in warm, moist soil, sprouts into a seedling. As the plant grows, it develops a robust root system and shoots that unfold into distinctive, variegated leaves with a purple and green pattern. This herbaceous perennial reaches maturity when it forms a clump with multiple stems and leaves, and in summer, it produces spikes of inconspicuous white or pinkish flowers that are attractive to pollinators. After pollination, the flowers give way to small fruits that contain seeds, completing the reproductive cycle. During the autumn, 'Purple Fantasy Knotweed' dies back to the ground, with the roots lying dormant through the winter. In spring, the plant regrows from the rootstock, repeating its life cycle.

  • sproutPropogation

    • Propogation time


    • Propogation: Persicaria runcinata 'Purple Fantasy', commonly known as knotweed, can be propagated during the spring or early summer when the plant is actively growing. The most popular method of propagation for this plant is by division. This entails digging up the entire plant and gently separating it into smaller sections, each with a piece of the root system. When dividing, make sure that each new section has at least one growing point or shoot to ensure successful growth. Once divided, the sections can be immediately replanted in well-draining soil, ensuring that the transplants are watered thoroughly to help establish the new roots. It's important to space the divisions to allow adequate room for future growth. Knotweed divisions typically take hold quickly and begin to grow, spreading to fill in the space provided.