Phlox divaricata

Blue Phlox

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Common Name:

Blue Phlox

Plant Type:

Annual

Flower color:

Foliage color:

Green

Sun (From 0 to 5):

1

Water (From 0 to 5):

2

Maximum temperature:

40°C

Minimum temperature:

10°C

Maximum height:

30 cm

Maximum width:

60 cm

Blue Phlox (Phlox divaricata) - Description

Phlox divaricata (wild blue phlox, woodland phlox, wild sweet william) is a species of flowering plant in the family Polemoniaceae, native to forests and fields in eastern North America. It is a semi-evergreen perennial growing 25–50 cm (10–20 in) tall with opposite, unstalked, hairy leaves 2. 5–5 cm in length and ovate-lanceolate in shape.

Blue Phlox (Phlox divaricata) - Blooming

Blooms salverform flowers in shades of white, pink, purple, and blue. Attracts butterflies. Lengthen the flowering period by deadheading regularly.

Blue Phlox (Phlox divaricata) - Growth

Evergreen or herbaceous perennials with some annuals and shrubs. Annuals enjoy full sun. Perennials and shrubs grow best in full sun or light-partial shade. The flowers of tall Phlox species are suitable for cutting. Mat-forming species work well in a rock garden, and annuals are good for bedding.

Blue Phlox (Phlox divaricata) - Planting

Sow annual seeds at 55-64°F (12-18°C) in early spring. Sow seeds of perennials in containers in cold frames in spring.

Blue Phlox (Phlox divaricata) - Pest

Stem nematodes, caterpillars, and leaf miners. Additional problems include powdery mildew, Southern blight, leaf spots, rust, and stem canker.

Blue Phlox (Phlox divaricata) - Interesting facts

All species of Phlox are native to North America, except for one, which grows in Siberia.

Blue Phlox (Phlox divaricata) - Soil and irrigation

Members of the Phlox genus need regular water except for P. nana, which does fine with little water. All species require rich, well-drained soil.