Garden Phlox Phlox paniculata 'Alba Grandiflora'

👤 Non-toxic to humans
🐾 Non-toxic to pets
🌸 Blooming
🍪 Not edible
‍🌱 Easy-care
perennial phlox 'Alba Grandiflora'


Phlox paniculata 'Alba Grandiflora', commonly known as garden phlox, is a perennial plant renowned for its lush and showy flowers. This particular variety boasts striking white blooms that cluster atop sturdy stems, creating an impressive display of color. Each individual flower consist of five flat or slightly trumpet-shaped petals that merge at their bases to form a tubular structure. The flowers are fragrantly scented and tend to attract a variety of pollinators to the garden, including butterflies and hummingbirds. The foliage of garden phlox is equally attractive, with bright green leaves that provide a perfect backdrop for the snow-white blossoms. These leaves are typically lance-shaped, with a smooth or slightly toothed edge, and are arranged in an opposite fashion along the stems. During the blooming season, the contrast between the vibrant green foliage and the pure white flowers is visually stunning and can act as a focal point in garden beds or borders.

Plant Info
Common Problems

About this plant

  • memoNames

    • Family


    • Synonyms

      Garden Phlox, Summer Phlox, White Flowering Tall Phlox, Perennial Phlox

    • Common names

      Phlox paniculata 'Alba Grandiflora'.

  • skullToxicity

    • To humans

      Garden phlox is not considered toxic to humans. There are no significant reports of poisoning or adverse effects from ingesting parts of this plant.

    • To pets

      Garden phlox is also not known to be toxic to pets. Ingesting parts of the plant should not cause any significant symptoms of poisoning or severe consequences for domestic animals like cats and dogs. However, it's always important to discourage pets from ingesting plants as individual animals might have unique sensitivities.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      3-4 feet (0.9-1.2 meters)

    • Spread

      2-3 feet (0.6-0.9 meters)

    • Plant type


    • Hardiness zones


    • Native area

      North America


  • money-bagGeneral Benefits

    • Aesthetic Appeal: Phlox paniculata 'Alba Grandiflora', commonly known as White Garden Phlox, adds visual interest to a garden with its tall, white flower clusters.
    • Attracts Pollinators: The blooms are attractive to butterflies and hummingbirds, which helps pollinate other plants in the garden.
    • Fragrance: White Garden Phlox is known for its sweet fragrance, which can be enjoyed during its blooming period.
    • Perennial Growth: As a perennial, it returns each year, reducing the need to replant each season.
    • Summer Blooming: It provides flowers during the summer months when many other plants have finished their bloom cycle.
    • Border Planting: Its upright habit makes it suitable for borders and adding structure to garden designs.
    • Versatility: It can be used in cut flower arrangements, adding beauty both in the garden and indoors.
    • Drought Tolerance: Once established, White Garden Phlox has moderate drought tolerance, making it suitable for various climates.
    • Cottage Garden Style: Ideal for a classic cottage garden look due to its traditional appearance and ease of growing.

  • 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

    • Garden Cottage Theme: Phlox can be used to create a romantic cottage garden theme due to its vintage style and delicate flowers.
    • Photography Backdrops: The dense clusters of white blooms make a beautiful backdrop for garden photography.
    • Educational Tool: Phlox can be used in educational settings to teach about plant pollination as they attract pollinators like bees and butterflies.
    • Creating Borders: Tall varieties of garden phlox like 'Alba Grandiflora' are ideal for creating vibrant borders along fences or garden edges.
    • Night Garden: The white flowers of garden phlox can create a glowing effect in moon or night gardens, reflecting moonlight or garden lighting.
    • Companion Planting: Garden phlox can be planted with other perennials to help deter pests or attract beneficial insects to the garden.
    • Homemade Potpourri: Dried phlox flowers can be added to potpourri mixes for a subtle fragrance in the home.
    • Fairy Gardens: Miniature varieties of phlox can be used to add floral elements to whimsical fairy gardens.
    • Floral Arrangements: Fresh cut flowers of phlox can be used in floral arrangements for events and home decor.
    • Culinary Garnish: While not commonly eaten, phlox petals can be used as a colorful, edible garnish for salads and desserts.

Interesting Facts

  • bedFeng Shui

    The Garden Phlox is not used in Feng Shui practice.

  • aquariusZodiac Sign Compitability

    The Garden Phlox is not used in astrology practice.

  • spiralPlant Symbolism

    • Harmony: Phlox symbolizes harmony, representing the blending of different hearts and minds into one accord, often used in bouquets to express unity.
    • Partnership: Often associated with the coming together of two people, Phlox can symbolize a partnership that thrives and flourishes over time.
    • Sweet dreams: With its gentle appearance, Phlox is sometimes related to the concept of sweet dreams, comfort, and kind sentiments, making it a plant that can be gifted to wish someone a restful sleep.

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

    Garden Phlox should be watered deeply, providing about 1 inch of water per week, especially during the growing season. In hot, dry periods, watering may need to be increased to twice per week. Water at the base of the plant to avoid wetting the foliage, which can lead to fungal diseases. Ensure that the soil is moist but not waterlogged, as Garden Phlox does not like to be in overly saturated soil. During the winter, reduce watering, as the plant requires less moisture when it is dormant.

  • sunLight

    Garden Phlox thrives in full sun and should be placed in a location that receives at least six hours of direct sunlight each day. A spot with morning sunlight and some afternoon shade is ideal, especially in hotter climates to prevent the foliage from scorching. They can tolerate partial shade, but too much shade can result in fewer blooms and a weakened plant.

  • thermometerTemperature

    Garden Phlox prefers moderate temperatures and grows well in USDA zones 4 through 8 with temperatures ranging between 60°F and 85°F for optimal growth. They can tolerate a minimum temperature down to -30°F once established and a maximum temperature of around 95°F though prolonged heat can stress the plant. Ideal growing conditions for Garden Phlox include warm days and cool nights.

  • scissorsPruning

    Pruning Garden Phlox is important to encourage bushier growth and to remove spent flower heads, which promotes further blooming. Prune in early spring to remove dead or damaged stems and again after the first flush of flowers has faded to encourage a second bloom period. The best time for pruning is when new growth appears at the base of the plant, generally a few inches high.

  • broomCleaning

    As needed

  • bambooSoil

    Garden Phlox thrives in well-draining soil enriched with compost or other organic matter. The best soil mix should consist of garden soil, peat moss or compost, and perlite or coarse sand to ensure good drainage. Aim for a soil pH between 6.0 and 7.0 for optimal growth.

  • plantRepotting

    Garden Phlox does not typically require frequent repotting as it is usually grown in the ground. Repotting may be necessary every 2 to 3 years if grown in containers to refresh the soil and accommodate root growth.

  • water dropsHumidity & Misting

    Garden Phlox prefers moderate humidity levels. It does not require any special humidity conditions and can thrive in the ambient humidity found in most outdoor garden settings.

  • pinSuitable locations

    • Indoor

      Ensure bright light, minimal direct sun, well-draining soil, and consistent watering.

    • Outdoor

      Choose a sunny spot, enrich soil, regular watering, and provide space for air flow.

    • Hardiness zone

      4-8 USDA

  • circleLife cycle

    Garden Phlox 'Alba Grandiflora' begins its life cycle as a seed, which, when sowed and exposed to appropriate spring temperatures, germinates and sprouts into a seedling. The seedling develops a root system and foliage through a vegetative stage, quickly forming a small clump of leafy stems. As the plant matures, these stems elongate, and in the early to mid-summer, the growing tips produce clusters of buds that bloom into fragrant, white flowers. After pollination, often by hummingbirds, butterflies, or bees, the flowers produce seeds before withering at the end of the blooming period. The plant then enters a period of senescence in late autumn where it dies back to the ground following seed dispersal, with the root system remaining dormant through the winter. In spring, the plant reemerges from the surviving roots, ready to repeat the cycle.

  • sproutPropogation

    • Propogation time

      Spring to Summer

    • For the garden phlox, specifically the Phlox paniculata 'Alba Grandiflora', the most popular method of propagation is through division. This approach is best performed in early spring as new growth begins or in the fall when the plant is not flowering. To divide garden phlox, carefully dig around the base of an established clump and lift it out of the ground. Then, with sharp tools, divide the clump into sections, ensuring each has a healthy portion of roots and shoots. These sections can be replanted in well-prepared soil, spaced at least 1 to 2 feet apart to allow for growth and good air circulation. Water the new plantings thoroughly to help establish their roots in the garden.