Tall Phlox 'Luminary Ultraviolet'

About this plant

Elevate your garden with the breathtaking beauty of Phlox paniculata 'Luminary Ultraviolet'. This outstanding Proven Winners selection commands attention with its intense, true violet-purple flowers, each adorned with a deeper eye, creating a dazzling display from mid-summer through early fall. The large, fragrant flower clusters are held aloft on sturdy stems, providing a spectacular vertical accent that is perfect for borders, cottage gardens, or as a vibrant focal point. Beyond its undeniable aesthetic appeal, 'Luminary Ultraviolet' boasts superior disease resistance, particularly to powdery mildew, a common issue with traditional garden phlox. This makes it an incredibly low-maintenance choice, ensuring your garden remains pristine and vibrant throughout the growing season without constant fuss. Its robust nature and reliable blooming make it a true garden workhorse. Not just a feast for the eyes, this Tall Phlox is a magnet for beneficial insects. Its nectar-rich flowers attract an array of pollinators, including butterflies, hummingbirds, and bees, bringing your garden to life with activity. Plant it in drifts for a dramatic impact or combine it with other perennials to create a dynamic and colorful tapestry that will be the envy of your neighborhood.

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

Provide consistent moisture, especially during dry spells, and apply a balanced slow-release fertilizer in spring for optimal growth. Deadhead spent blooms to encourage reblooming and maintain a tidy appearance. While resistant to powdery mildew, ensure good air circulation. In colder zones, a layer of mulch in fall can provide extra winter protection.

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.