Use & Care NotesCompanion Plants
Luminary® Opalescence Phlox: Soft Pink Over Very Dark Leaves
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Luminary® Opalescence garden phlox pairs soft, light pink flowers, each with a dark pink eye, with some of the darkest green leaves found on any garden phlox. The contrast makes the pale flowers almost shine. In the breeder's extensive trials it stood out as the top performer for powdery mildew resistance, which is the single biggest headache with garden phlox in a humid Great Lakes summer.
Opalescence at a glance
| Trait | What to expect |
|---|---|
| Botanical name | Phlox paniculata Luminary® Opalescence |
| Flowers | Light pink with dark pink eyes, about 1 inch |
| Foliage | Very dark green |
| Size | 30 to 32 inches tall, 24 to 28 inches wide |
| Bloom | Early July, peaks late July, up to five weeks plus rebloom |
| Hardiness | USDA zones 3 to 8 |
| Wildlife | Butterflies, hummingbirds and bees |
| Deer | Susceptible |
Why mildew resistance matters here
Powdery mildew coats phlox leaves in a gray-white film in humid, still summer weather, and on older varieties it can leave the lower half of the plant looking tired by August. Opalescence was chosen specifically because it resists it, so its very dark leaves stay clean and glossy, which also keeps the plant looking good as a backdrop long after bloom. You can help it further:
- Space plants at their mature width so air moves through.
- Water at the base in the morning rather than overhead in the evening.
- Thin a crowded clump to a few strong stems in spring.
- Clear old stems and leaves after frost to reduce disease carryover.
Pairing pale pink with lavender
Light pink and lavender purple are a gentle, cottage-garden combination. Because phlox wants richer soil and more water than lavender, plant Opalescence in a border alongside the lavender bed rather than in it. Its flowers open in early July as the first lavender bloom winds down, so the soft pink carries the color forward. A row of lavender in front with Opalescence behind reads especially well, since phlox stands taller. Try it in the Companion Plant Planner.
Season-long care
Plant in full sun to part shade; full sun gives the most flowers. Keep the soil evenly moist and water deeply in dry spells, since drought makes lower leaves yellow and drop. Deadhead spent clusters to encourage repeat flowers. Spider mites can bronze leaves in hot, dry weather. It is fully hardy in Michigan without winter protection; cut stems down after a hard frost or in early spring, and divide every few years in spring.
Frequently asked questions
Is Opalescence fragrant?
Yes. It has the moderate, sweet, spicy-clove fragrance of garden phlox, strongest on warm evenings.
Is it good for cutting?
It is rated good as a cut flower. Cut when about half the flowers in a head are open.
Which format should I choose?
The 72-cell plug tray fits growers and large borders; the bare root plant fits a home garden. See each product page for current availability, and the Wholesale Hub for trays.
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