Wild blue phlox (Phlox divaricata)

Wild blue phlox

Also known as: Wild sweet william

Wild blue phlox (Phlox divaricata) also goes by the names of woodland phlox or Louisiana phlox, and it’s indigenous to eastern North America. The flowers sit atop hairy, sticky stems. In the wild, it loves to grow along stream banks. “Phlox” is Greek for “flame” because some flowers of this species have intensely vibrant colors.

Scientific classification

Species

Wild blue phlox (Phlox divaricata)

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Herb

Plant Type

Mid spring, Late spring, Early summer, Mid summer

Bloom Time

Spring, Mid summer

Harvest Time

15 cm to 30 cm

Plant Height

50 cm

Spread

Green

Leaf Color

2.5 cm to 8 cm

Flower Size

Brown, Green

Fruit Color

White, Blue, Purple, Lavender

Flower Color

Green

Stem Color

Winter dormancy

Dormancy

Semi-evergreen

Leaf type

Images of Wild blue phlox

Attributes of Wild blue phlox

Growth Rate

During its active growing seasons of Spring and Summer, wild blue phlox's growth rate is rapid. This manifests in an accelerated development of features, resulting in a sprouting of leaves and height increase at an exceptional pace. It also promotes prolific flowering, leading to vibrant displays. Changes in growth patterns may be observed during these seasons, aligning with wild blue phlox's growth speed. However, there could be slight deviations in the growth rate during different periods within the seasons. This rapid growth bestows additional resilience, equipping the plant better for survival and propagation.

Distribution of Wild blue phlox

Distribution Map

Wild blue phlox is a plant primarily native to the temperate regions of the Eastern North America. Over time, it has been introduced and cultivated in various temperate zones beyond its native range. Its adaptability has led to widespread cultivation, primarily in gardens and landscapes across multiple continents where temperate climates prevail.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Deciduous woodlands, woods, stream banks and open areas near woodland paths

Hemisphere Trend Curve

Northern

Sorthern

Culture

Garden Use

Known for creating a cover of lilac flowers, wild blue phlox does best in woodland-like conditions. However, it is adaptable, also thriving in partially shaded beds and borders, naturalized areas, and rock gardens. Because it tolerates shade, it can be used as an underplanting of roses and other shrubs.

Symbolism

Our souls are united.

Name Story

Wild blue phlox: This Phlox plant that grows in forests or fields has special flowers. Its color is light blue or purple which makes it seem gentle and elegant when matched against the green leaves. Therefore, it is called wild blue phlox because of its unique blue flower.

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Cultivars

There are several recognized cultivars of Wild blue phlox, including the following common varieties :

Wild blue phlox 'Chattahoochee'Wild blue phlox 'Chattahoochee'

Quickly Identify Wild blue phlox

Lush green leaves, 2 inches (5 cm) long, with fine hairs and sticky texture.

Vibrant blue tubular flowers, 1.5 inches (3.8 cm) wide, with recessed stamens.

Ovoid fruit capsules, 0.2 inches (5 mm) long, containing small black seeds.

Slender stem, 0.1-0.2 inches (2.5-5 mm) thick, hairy and sticky with sparse branching.

Cluster-forming herbaceous perennial, 6-12 inches (15-30 cm) tall, growing on forest floors.

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Care Guide for Wild blue phlox

Every week

Water

Full sun

Sunlight

10 - 32 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Wild blue phlox thrives in moist, well-drained woodland soils and prefers consistent moisture, requiring weekly watering. This herbaceous perennial, known for attracting pollinators during its flowering season, can tolerate short dry spells.

Fertilize: For optimal growth, wild blue phlox needs balanced nutrition. Apply a granular, slow-release fertilizer (1/2 cup/sq yd) in spring, followed by half-strength liquid feed monthly until late summer. Avoid over-fertilization; stop feeding during winter dormancy to prevent waste and root damage.

Pruning: Wild blue phlox is a perennial with fragrant lavender-blue flowers. Prune in early to late spring to remove spent blooms, promoting fresh growth and preventing legginess. Use clean, sharp tools for trimming to ensure healthy blooms and maintain vibrant garden displays.

Propagation: Wild blue phlox propagates effectively via cuttings in spring or summer. This process is moderately easy, with new growth indicating success. Maintain moisture for cuttings and ensure they receive indirect sunlight for optimal results.

Repotting: Repot your wild blue phlox every 2-3 years, ideally in spring after flowering. Select a wider container for its spreading habit. Post-repotting, maintain moist soil and provide partial shade to encourage vibrant growth. With proper care, your wild blue phlox will thrive beautifully.

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