Plant spacing is based on the ultimate width of the plants. This figure is normally given as a range; for example, 3-5’. If you live in a cold climate and/or want plants to fill in more quickly, plan to space at the shorter end of the range. If you live in a warm climate, are on a limited budget, or are willing to wait longer for plants to touch, use the higher end of the range. Using the larger number is recommended when calculating distance from a building or structure. There’s really no such thing as "maximum spacing": if you don’t want your plants to touch, you can space them as far apart as you’d like. All plant spacing is calculated on center, or in other words, the centers of the plants are spaced one half of their eventual width apart:
Unless you are planting in a straight line, as you might for hedges or edging, space your plants in a staggered or zig-zag pattern for a more interesting and naturalistic look:
Hand-picked at our greenhouse
Shipped to your door
Arrives as young plant
DescriptionThe Luminary™ collection of tall garden phlox (Phlox paniculata) features some of the brightest flowers we've seen, and the new Luminary™ 'Backlight' tall garden phlox fits right in! Pure white flowers practically glow atop dark green foliage in the summer. The blooms are so crisp and white, they shine even at night, making them the perfect addition to moon gardens. Their sweet fragrance entices butterflies and bees during the day and moths at night.
Beyond their bright colors, the Luminary™ series from Proven Winners were bred for powdery mildew resistance. Dark green foliage stays handsome all season long, even in hot and humid conditions. These native perennials are easy to grow and even easier to love, which is why we recommend them for gardeners of any level!DetailsBotanical name: Phlox paniculata ‘Backlight’ Patent #: PP34506 Common name: Tall garden phlox Zone: 3 – 8 Sun exposure: Sun (> 6 hours sun) Height x width: 28-30″ tall x 20-24" wide Flower color: White Foliage color: Green Season of interest: Summer to fall Bloom time: Midsummer, late summer Features: Proven winners, native, fragrant, container plants, cold tolerant, best for beginners Uses: Background, border, cottage garden, massing, specimen, wildflower, flower garden, pollinator garden How To GrowSoil: Performs best in well-drained soil. Light: Phlox grows best in full sun. Water: Has average water needs. Spacing: 28 - 30" Fertilizing: If desired, apply a minimal amount of all-purpose garden fertilizer around the base of the plant in spring. Winterizing: Cut foliage in late fall to prevent powdery mildew and other fungal diseases from returning in spring. Maintenance & pruning: Thin or prune by half in spring and prune spent flowers off after bloom, just above the foliage to encourage more blooms.