David Tall Phlox

About this plant

Elevate your garden's aesthetic with 'David' Tall Phlox, a truly magnificent perennial celebrated for its pristine, snow-white flower clusters. From mid-summer through early fall, this exceptional variety blankets your landscape in a breathtaking display, offering a luminous focal point that shines brightly against any backdrop. Its generous bloom production and strong, upright stems make it an ideal choice for both dramatic mass plantings and sophisticated mixed borders. Beyond its visual appeal, 'David' Tall Phlox brings life to your garden, attracting a delightful array of pollinators, including butterflies and hummingbirds, with its sweet fragrance. Its disease resistance, particularly to powdery mildew, ensures a consistently healthy and vibrant performance throughout the growing season, providing continuous joy without demanding constant attention. Whether you're crafting a serene white garden, enhancing a cottage landscape, or simply seeking a reliable and stunning perennial, 'David' Tall Phlox delivers unparalleled elegance and enduring beauty. Its impressive stature and long-lasting blooms also make it an excellent choice for cutting gardens, bringing the fresh charm of your outdoor space indoors.

Installation timing

When we're in season, outside of the winter months, our goal is to get your plants installed within about two weeks. That window gives us enough time to secure your plants from our supplier and find a spot on the schedule. Throughout the process we stay in touch through notifications and your existing client portal on the main A Cut Above website, which is separate from this landscaping plants shop.

Care & maintenance

For optimal performance, plant 'David' Tall Phlox in well-drained soil rich in organic matter. Provide consistent moisture, especially during dry spells, to support its vigorous growth and abundant flowering. Deadhead spent blooms regularly to encourage reblooming and maintain a tidy appearance. Apply a balanced, slow-release fertilizer in spring. Good air circulation is key to preventing powdery mildew, though 'David' is known for its superior resistance.

Watering suggestions

Proper watering is the single most important factor in your plant's survival after installation. Newly installed plants have a limited root system and rely on you for consistent moisture while they establish.

• First 2 weeks: Water deeply every day (or every other day in cooler, wet weather), soaking the root ball and surrounding soil.
• Weeks 3–12: Water deeply 2–3 times per week, adjusting for rain, heat, and soil drainage.
• After establishment: Water deeply about once a week during the growing season, and more often in extreme heat or drought.
• How to check: Stick a finger 2–3 inches into the soil near the roots — if it's dry, it's time to water. Deep, less-frequent watering encourages strong roots; shallow daily sprinkles do not.
• Avoid: Overwatering (soggy, waterlogged soil) is just as harmful as underwatering and can drown roots.

Watering needs vary by plant, season, soil, and exposure. Because proper watering is the customer's responsibility after installation, please make sure you understand and can follow these suggestions before ordering.

Good to know: plants and trees purchased from and installed by A Cut Above include a one-year limited warranty from the date of installation. Because plant survival depends heavily on proper watering and care after installation, losses caused by improper care, neglect, animal or chemical damage, or extreme weather are not covered, and we must be given the chance to inspect a struggling plant before it's removed or replaced. Coverage is one replacement per plant. Read our warranty info.