Cardinal Flower Lobelia × speciosa 'Fan Lachs' (Fan Series)

☠ Toxic to humans
🐾 Toxic to pets
🌸 Blooming
🍪 Not edible
‍🌱 Hard-care
lobelia 'Fan Lachs'


Lobelia × speciosa 'Fan Lachs', commonly known as the Lobelia, is a popular perennial plant renowned for its showy appearance. It features a dense clump of dark green, lance-shaped leaves that provide a lush backdrop for its true visual showpiece, the flowers. The blooms of the 'Fan Lachs' variety are a striking salmon-pink color, with distinct deep-throat markings that add depth and texture to the flowers. These blossoms are densely packed on erect, sturdy stalks that rise above the foliage, giving the plant a graceful and eye-catching aspect. The blossoms of the Lobelia are tubular and two-lipped, with the upper lip consisting of two lobes and the lower lip featuring three. The flowers are arranged in an elongated inflorescence that has a fan-like shape, which is where the 'Fan Series' gets its name. This floral display makes the Lobelia 'Fan Lachs' a sought-after addition to gardens, where it can provide a long-lasting splash of color throughout its blooming period. As a typical characteristic of the Lobelia genus, the bright flowers attract pollinators such as hummingbirds and butterflies, adding even more life to the visual spectacle of the garden. Overall, the Lobelia 'Fan Lachs' is admired for its vibrant blossoms, which bring an elegant and robust presence to plantings without overwhelming with sheer size.

Plant Info
Common Problems

About this plant

  • memoNames

    • Synonyms

      Fan Lobelia, Hybrid Lobelia, Fancy Lobelia

    • Common names

      Lobelia × speciosa 'Fan Lachs' (Fan Series).

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      2 feet 6 inches (76 cm)

    • Spread

      1 foot 6 inches (46 cm)

    • Plant type


    • Hardiness zones


    • Native area

      Hybrid origin


  • money-bagGeneral Benefits

    • Aesthetic Appeal: Adds vibrant colors and visual interest to gardens and landscapes with its showy flowers.
    • Attracts Pollinators: Invites bees, butterflies, and hummingbirds, supporting local ecosystems.
    • Long Blooming Season: Offers a lengthy display of flowers, often from midsummer to early fall.
    • Easy to Grow: Known for being low-maintenance, which is ideal for novice gardeners or those with limited time.
    • Versatile Planting Options: Suitable for borders, containers, and as accent plants, providing flexibility in garden design.
    • Drought Tolerance: Once established, it has a level of drought resistance, reducing the need for frequent watering.
    • Cold Hardy: Can withstand cooler temperatures, which makes it suitable for a variety of climates.
    • Deer Resistance: Generally not preferred by deer, which helps to prevent damage to the plant and garden.

  • 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

    • Lobelia 'Fan Lachs' can be used as a natural dye for fabrics, providing different shades of green and yellow depending on the mordant used.
    • The plant can act as a living mulch, helping to regulate soil temperature and moisture while suppressing weed growth in garden beds.
    • Aromatic properties of Lobelia 'Fan Lachs' leaves can be included in potpourris or herbal sachets for a subtle, pleasant fragrance.
    • The stems and flowers can be used in the creation of natural insect repelling bundles, to be hung in outdoor areas or near windows.
    • When dried, the flowers can be used in the crafting of botanical jewelry, like resin pendants or earrings, due to their striking color.
    • Lobelia 'Fan Lachs' can be incorporated into floral arrangements for economic water-wise landscaping due to its low water requirement.
    • The plant's stalks can be used in basket-weaving or as a natural binding material in garden projects.
    • Pressed Lobelia 'Fan Lachs' flowers can be used as decorative elements in handmade paper or as a natural embellishment in scrapbooking.
    • When planted in outdoor areas frequented by animals, the plant can provide a natural source of cover for small wildlife.
    • Its vibrant flowers can also be used to create a natural dye for temporary tattoos, offering a way to enjoy botanical art on the skin.

Interesting Facts

  • bedFeng Shui

    Cardinal flower is not used in Feng Shui practice.

  • aquariusZodiac Sign Compitability

    Cardinal flower is not used in astrology practice.

  • spiralPlant Symbolism

    • Devotion and Loyalty: In the language of flowers, Lobelia is often associated with devotion and unwavering loyalty due to its perennial nature and the way it returns each year.
    • Attraction: With its vibrant and attractive flowers, Lobelia can symbolize magnetism or the power to attract, representing how one can captivate the attention of others.
    • Passion: The vivid and intense colors of the Fan Lachs Lobelia may be tied to symbols of passion and intensity in one's feelings or endeavors.
    • Dignity: Lobelia might be used as a symbol of dignity due to its upright growing habit and graceful appearance.

Every 2-3 days
2500 - 10000 Lux
Every year
Spring to early summer
As needed
  • water dropWater

    Cardinal flowers should be watered regularly to maintain a consistently moist soil, particularly during their active growing season in spring and summer. They should be watered deeply, which means enough water to soak the soil to a depth of about 8 inches. This might typically require around 1 to 1.5 gallons of water for an established plant, depending on the soil and climate conditions. During hot and dry periods, watering may be necessary once or twice a week. In cooler or rainy spells, reduce the frequency to prevent waterlogging.

  • sunLight

    Cardinal flowers thrive best in partial shade to full sun conditions. An ideal spot would be one that receives morning sunlight and is shaded in the afternoons, or a location with dappled sunlight throughout the day. Direct afternoon sun, especially in hotter climates, can be too intense, so providing some protection from the strongest rays will ensure the foliage does not get scorched.

  • thermometerTemperature

    Cardinal flowers prefer moderate temperatures and do not do well in extreme heat or cold. They can generally survive in temperatures as low as 20°F and as high as 90°F, but for optimal growth, they should be kept in an environment where temperatures are consistently between 60°F and 75°F.

  • scissorsPruning

    Cardinal flowers benefit from pruning to promote bushier growth and more prolific blooming. Deadhead spent flowers regularly to encourage new blooms. In the fall, after flowering has finished, cut back the plant to about 3 inches above the ground to help rejuvenate it for the next season. The best time for a major prune is in the early spring, just as new growth begins.

  • broomCleaning

    As needed

  • bambooSoil

    The Cardinal Flower 'Fan Lachs' thrives in moist, well-draining soil rich in organic matter with a soil pH range of 6.0 to 7.5. A mix containing peat moss, loamy garden soil, and perlite or sand will ensure proper drainage and fertility.

  • plantRepotting

    The Cardinal Flower 'Fan Lachs' should be repotted every 1 to 2 years to replenish the soil and provide space for root growth. It is best repotted in the spring before the onset of the growing season.

  • water dropsHumidity & Misting

    Cardinal Flower 'Fan Lachs' grows best in an environment with high humidity, ideally above 50%. Regular misting can help maintain the necessary humidity levels if grown indoors.

  • pinSuitable locations

    • Indoor

      Place in bright, indirect light with high humidity.

    • Outdoor

      Full sun to part shade, keep soil consistently moist.

    • Hardiness zone

      4-9 USDA

  • circleLife cycle

    Lobelia × speciosa 'Fan Lachs' (Fan Series), commonly known as Lobelia, starts its life cycle from seed, typically requiring warmth and light to germinate. Once sprouted, the tiny seedlings grow into young plants with characteristic lance-shaped leaves, and it often takes several weeks before they are ready for transplanting into their final growing location. As the plants mature, they develop sturdy stems and vibrant, fan-shaped salmon-pink flowers that bloom throughout the summer and into early fall, attracting pollinators such as bees and hummingbirds. After flowering, if not deadheaded, the plant will produce seed pods that ripen and release seeds for subsequent propagation. To survive in colder climates, Lobelia x speciosa 'Fan Lachs' may die back to the ground after frost, but with proper mulching or care, the plant can regenerate from its root system the following spring. This herbaceous perennial completes its life cycle in this way, regrowing each year from overwintered roots or by self-seeding, as long as the growing conditions remain suitable.

  • sproutPropogation

    • Propogation time

      Spring to early summer

    • Propogation: Lobelia × speciosa 'Fan Lachs', commonly known as the Fan Scarlet Lobelia, is most effectively propagated by division during early spring. To propagate through division, carefully lift the clump out of the ground once new growth appears. Gently separate the crown of the plant into sections, each with a fair amount of roots and shoots. Replant the divisions at the same depth they were growing previously, spacing them about 12 inches apart to allow for adequate growth. Water the new plantings thoroughly to help establish them. This method is advantageous because it not only produces new plants that are true to the parent but also helps rejuvenate older, overgrown clumps, encouraging more vigorous growth and flowering.