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Hardy perennial
Polemoniaceae
Perennials
Phlox 'Ultraviolet'
Phlox
Phlox 'Ultraviolet': 90 cm tall and 80 cm spread, sun to partial shade. Violet, magenta flowers in July-August. Zone 3; choose a soil compatible with its moisture needs.
- Exposure
- Sun to partial shade
- Life cycle
- Hardy perennial
- Hardiness
- Zone 3
Discover the plant
Common namePhlox 'Ultraviolet'
FamilyPolemoniaceae
GenusPhlox
CultivarUltraviolet
TypeHardy perennial
Botanical namePhlox
With Phlox ‘Ultraviolet’, the flowerbed welcomes a plant whose flowers display shades of purple and magenta. Among its distinctive details: fragrant flowers. The foliage exhibits shades of green, to be showcased among different textures. The usual flowering period is in July-August. At maturity, expect 90 cm in height and 80 cm in width, which suggests its use in the middle of a flowerbed and in group plantings.
The success of Phlox ‘Ultraviolet’ begins with its location: full sun to partial shade, in suitable soil (drained garden soil, maintaining moderate humidity during establishment). Support the rooting of Phlox ‘Ultraviolet’ with deep watering, then check the moisture before watering again. Adjust the frequency to rainfall and heat; avoid small daily applications to already moist soil. A margin corresponding to its 80 cm spread avoids having to move the clump in the first seasons. The indicated hardiness zone is 3, to be considered according to your garden's conditions.
In a planting of Phlox ‘Ultraviolet’, remove diseased portions and avoid piling debris in the center of the clumps. Sufficient space between the phlox helps the foliage to dry; direct water to the soil rather than onto the leaves. For companion planting, consider campanulas, echinaceas, and perennial geraniums in varieties with similar needs. Keep its 90 cm height in mind to place lower plants on the correct side and to allow the flowers to be visible during July-August.
Planting guide
From planting to establishment.
Spacing / density
31.5 in
Best planting time
Spring after the thaw or early autumn, allowing the roots to settle before the harsh cold.
Propagation
Division of clumps; root cuttings; stem cuttings. Sowing does not guarantee the fidelity of a named cultivar.
Growing method
Phlox ‘Ultraviolet’: In spring after the ground thaws, or in early fall, allowing the roots time to establish before the deep cold sets in. Support the root establishment of Phlox ‘Ultraviolet’ with deep watering, then check moisture levels before watering again. Adjust the frequency according to rain and heat; avoid small daily applications on already moist soil. Sufficient spacing between phlox helps the foliage dry; direct water to the soil rather than onto the leaves.
Soil and care
The right care,at the right time.
Soil pH
Acid to neutral to alkaline; general indication of the botanical group
Care level
Routine maintenance
Watering
Help Phlox 'Ultraviolet' establish itself with deep waterings, then check for moisture before watering again. Adjust frequency based on rain and heat; avoid small daily waterings on already damp soil.
Soil type
Drained garden soil, retaining moderate moisture during installation
Fertilization
Fertilizer for flowering
Moisture
Moderate humidity; water according to the actual state of the root ball
Seasonal care
Phlox 'Ultraviolet': remove diseased portions and avoid piling debris in the center of the clumps. During its flowering period (July-August), also monitor damaged stems and neighboring plants that could obscure the clump.
Container growing
A garden,within reach.
Recommended pot size
A stable, perforated container, significantly wider than the root ball; dimensions to be adapted to the sold format and adult development.
To try Phlox 'Ultraviolet' in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (80 cm). Water must drain freely after each watering; check the root ball more often than you would in the open ground. Plan to protect the container in winter depending on your climate.
Bloom and dimensions
Its place,in your garden.
Mature height
3 feet (91.5 cm)
Width / spread
32 inches (81.5 cm)
Flower color
Purple
Foliage color
Green
Growth rate
Fast
Growth habit
Erected
Fragrance
Fragrant flowers
Bloom period
July-August
Garden associations
In goodcompany.
Companion plants
Associations to consider for Phlox 'Ultraviolet': bellflowers, coneflowers, perennial geraniums. Choose varieties that tolerate sun to partial shade and comparable moisture; allow each clump its adult space.
Plants to avoid
Around Phlox ‘Ultraviolet’, be sure to avoid neighboring plants that would cover its leaves or heavily compete with its root ball. Compatibility in terms of light, water, and size takes precedence over a list of so-called enemy plants.
Frequently asked questions
Your questions,answered.
Where to plant Phlox ‘Ultraviolet’?
Provide sun to partial shade and suitable soil (drained garden soil, retaining moderate moisture during establishment). Sufficient space between phlox helps foliage to dry; direct water to the soil rather than onto the leaves.
What is the best place for Phlox ‘Ultraviolet’?
Expect a height of about 90 cm and a width of 80 cm at maturity. Approximately 80 cm between centers, to be adjusted according to the actual development of the clump. This size is suitable for use in the middle of a flower bed and for group plantings.
When does Phlox 'Ultraviolet' bloom?
The period indicated is July-August. The flower palette is purple, magenta. The exact date and duration depend on the climate, the season and the plant's establishment.
How to water and care for Phlox 'Ultraviolet'?
Accompany the root establishment of Phlox 'Ultraviolet' with deep waterings, then check the moisture before watering again. Adjust the frequency according to rain and heat; avoid small daily applications to already moist soil. Remove diseased portions and avoid piling debris in the center of the clumps.
Can Phlox 'Ultraviolet' be grown in a pot?
To try Phlox 'Ultraviolet' in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (80 cm). Water should drain freely after each watering; check the root ball more often than you would for plants in the ground. Plan to protect the container in winter depending on your climate.
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