Rio Yellow Chrysanthemum Chrysanthemum 'Rio Yellow' (PBR) (22d)

☠ Toxic to humans
🐾 Toxic to pets
🌸 Blooming
🍪 Not edible
‍🌱 Hard-care
chrysanthemum 'Rio Yellow'


The Chrysanthemum 'Rio Yellow' is a vibrant and eye-catching plant known for its striking yellow flowers. These flowers are the central feature, having a rich, golden hue that can brighten any garden space. Each bloom is composed of numerous long, slender petals that radiate outwards from a central disk, creating a full and lush appearance. The petals may have a slightly darker shade at the tips, adding depth to the flower's overall color. The foliage of the plant is dark green, providing a perfect backdrop that accentuates the bright yellow of the blooms. The leaves are typically deeply lobed, with a somewhat serrated edge, giving them a feathery appearance. The plant's overall form is rounded, with a dense, bushy habit that showcases the profusion of flowers covering it. As a perennial, this Chrysanthemum returns each year to provide a showy display of joyful yellow, and its blossoms are excellent for cutting and using in floral arrangements.

Plant Info
Common Problems

About this plant

  • memoNames

    • Family


    • Synonyms

      Rio Yellow Chrysanthemum, Yellow Rio Mums, Rio Yellow Mum

    • Common names

      Chrysanthemum 'Rio Yellow' (PBR) (22d)

  • skullToxicity

    • To humans

      Chrysanthemums, commonly known as mums, are generally not toxic to humans. However, some people may experience allergic reactions or skin irritation upon contact with the plant's sap. Ingesting parts of mums is not advised, as it may potentially cause gastrointestinal upset, such as vomiting or diarrhea, although serious toxicity is rare.

    • To pets

      Mums can be toxic to pets if ingested. Poisoning symptoms include vomiting, diarrhea, hypersalivation, incoordination, and dermatitis. In severe cases, ingestion can lead to more serious symptoms such as difficulty breathing. Pet owners should keep mums out of reach of their animals and seek veterinary assistance if they suspect their pet has ingested any part of the plant.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      1-2 feet (30-60 cm)

    • Spread

      1-2 feet (30-60 cm)

    • Plant type


    • Hardiness zones


    • Native area



  • money-bagGeneral Benefits

    • Enhances Garden Aesthetics: Chrysanthemums add bright yellow color and visual interest to gardens and landscapes.
    • Extended Blooming Period: They typically have a long flowering season from late summer into fall.
    • Attracts Pollinators: This plant provides nectar and pollen for bees and other beneficial insects.
    • Easy to Grow: Chrysanthemums are known for being low maintenance and easy to care for.
    • Drought Tolerance: Once established, they require minimal watering and can withstand dry conditions better than many other plants.
    • Versatile: They can be used in borders, containers, or as cut flowers because of their sturdy stems and long-lasting blooms.
    • Cold Hardy: They are capable of surviving and thriving in cooler temperatures.

  • 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

    • Photographic subject: Chrysanthemums are frequently used by photographers who specialize in botanical and nature photography due to their vibrant colors and intricate patterns.
    • Natural dye: The petals of chrysanthemums can be used to create a natural yellow dye for fabrics and yarns.
    • Companion planting: Chrysanthemums can be planted among vegetable gardens as they are believed to deter some pests.
    • Artistic inspiration: The striking 'Rio Yellow' chrysanthemum often serves as an inspiration for artists and can be found in various forms of artwork, including paintings and textile designs.
    • Flower arranging: Beyond decorative gardening, these flowers are sought after for creating intricate and long-lasting floral arrangements.
    • Educational tool: Chrysanthemums can be used in schools or educational programs to teach botany and horticulture principles.
    • Culinary garnish: While not for consumption, the bright petals can be used to decorate dishes in high-end culinary presentations.
    • Festival decorations: In some cultures, chrysanthemums are used extensively to decorate during festivals, particularly in autumn celebrations.
    • Symbolic gift: In certain cultures, chrysanthemums are given as a gift symbolizing loyalty and honesty.
    • Bioindicators: Chrysanthemums can act as bioindicators; their condition can reflect the quality of air and soil in which they are grown, indicating the presence of certain pollutants.

Interesting Facts

  • bedFeng Shui

    The Chrysanthemum is believed to bring happiness and laughter into the home, according to Feng Shui. It is recommended to place the Chrysanthemum in areas of the home that need an energy uplift. As the Chrysanthemum is associated with the yang (the sun) and brings with it yang energy, it can be used to promote a sense of warmth and liveliness. It is particularly beneficial when placed in the living room or any other area where family members gather, as it encourages optimism and good spirits. Moreover, the yellow color of the 'Rio Yellow' variety is associated with the earth element which can help create stability and nurture relationships, making it an excellent addition to the southwest sector of a space to foster love and unity.

  • aquariusZodiac Sign Compitability

    The Chrysanthemum is not used in astrology practice.

  • spiralPlant Symbolism

    • Optimism and joy: The bright yellow color of the Rio Yellow Chrysanthemum is often associated with sunshine and happiness, symbolizing positivity and cheerful thoughts.
    • Longevity and immortality: Chrysanthemums are known in many cultures, especially in Asian traditions, for representing long life and immortality due to their hardiness and ability to bloom into the fall.
    • Loyalty and devotion: In some cultures, chrysanthemums are given to represent steadfastness and fidelity in relationships, symbolizing committed love and support.
    • Recovery and rejuvenation: Because the chrysanthemum is capable of blooming late into the fall, it's often seen as a symbol of overcoming challenges and bouncing back from adversity.
    • Friendship: The chrysanthemum is sometimes given as a gift between friends, representing strong bonds and affection in platonic relationships.

Every week
2500 - 10000 Lux
Every year
Spring-Early Summer
As needed
  • water dropWater

    Mums, including the variety Chrysanthemum 'Rio Yellow', prefer evenly moist soil, meaning they should be watered regularly but not over-watered. Generally, they need to be watered once every week with a gallon of water, but this can vary depending on the weather and soil conditions. During hot, dry periods, you may need to water them more frequently. It’s important to water the plants at the base to avoid wetting the foliage, which can lead to disease. Be sure to allow the top inch of soil to dry out between waterings to prevent root rot.

  • sunLight

    Mums thrive in full sun conditions. The ideal location for Chrysanthemum 'Rio Yellow' is a spot where it can receive at least 6 hours of direct sunlight daily. Avoid placing them in deep shade as this can hinder flower development and make the plant leggy.

  • thermometerTemperature

    Mums are hardy in temperatures between 32°F and 90°F; however, for optimal growth, Chrysanthemum 'Rio Yellow' prefers an environment that is between 60°F and 70°F. They can survive light frosts but long exposure to temperatures below freezing can be detrimental to the plant.

  • scissorsPruning

    Pruning mums, including Chrysanthemum 'Rio Yellow', encourages bushier growth and more blooms. Prune or pinch back the tips of the stems in early summer before the end of July. This technique can be applied every few weeks until mid-summer to help the plant produce sturdier stems and a more compact shape.

  • broomCleaning

    As needed

  • bambooSoil

    Mums thrive in well-draining, fertile soil rich in organic matter with a pH of 6.0 to 7.0. A mixture of loamy garden soil, compost, and perlite or vermiculite will provide the necessary drainage and nutrients for Chrysanthemum 'Rio Yellow'.

  • plantRepotting

    Chrysanthemums should be repotted every one to two years or when they outgrow their current container. Ensure to refresh the soil mix to maintain nutrient levels.

  • water dropsHumidity & Misting

    Mums prefer a moderate humidity level, around 40-60%. Avoid excessive humidity to prevent fungal diseases while maintaining enough moisture in the air for healthy growth.

  • pinSuitable locations

    • Indoor

      Provide bright light and good air circulation.

    • Outdoor

      Plant in sunny spot with well-draining soil.

    • Hardiness zone

      5-9 USDA.

  • circleLife cycle

    The 'Rio Yellow' Chrysanthemum begins as a seed or cutting, which, when planted in well-draining soil and provided with adequate warmth and light, will sprout and start to grow. It progresses into the vegetative stage where the plant develops its root system and foliage, with leaves characteristic of the Chrysanthemum genus. As it matures, the 'Rio Yellow' enters the budding stage where flower buds form, requiring more sunlight and careful watering to encourage blooms. The blooming stage showcases its vibrant yellow flowers, which typically occurs in the late summer through fall, attracting pollinators that aid in reproduction. After flowering, the plant enters a period of senescence where the flowers fade and the plant prepares for dormancy; in perennial growing zones, it may persist through winter, but otherwise, it may die or require human intervention for preservation. Finally, the plant completes its cycle by producing seeds or can be propagated through cuttings, thus ensuring another generation of the 'Rio Yellow' Chrysanthemum.

  • sproutPropogation

    • Propogation time

      Spring-Early Summer

    • Propogation: Chrysanthemum 'Rio Yellow', commonly referred to as mums, is typically propagated by cuttings, a process that allows for the reproduction of the exact characteristics of the parent plant. To propagate mums using cuttings, the best time is late spring to early summer. Select a healthy stem and cut a piece that is about 4 to 6 inches long, making sure to include several sets of leaves. Remove the leaves from the lower half of the cutting to prevent rot and insert the stem into a pot filled with a well-draining potting mix. The cutting should be kept moist and in indirect light until roots develop, usually within a few weeks. Once rooted, the new mum plant can then be transplanted into the garden or container where it will grow into a full plant. It's important to note that since 'Rio Yellow' is a plant breeders' rights (PBR)-protected variety, unauthorized propagation may be legally restricted.