Blue phlox

Phlox divaricata 'Blue Moon'

Photo/Illustration: 
William Cullina
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Blue phlox (Phlox divaricata 'Blue Moon')
floks div-air-ih-KAY-tah
Genus:  Phlox

This cultivar of the popular blue phlox has round, full flowers with overlapping petals. It is noteworthy for its particularly rich blue-violet color. Use it in rock gardens or alpine houses, in a dry wall, or as edging.

Noteworthy Characteristics: 

Spreads by roots, creating a semi-evergreen groundcover.

Care: 

Grow in humus-rich, fertile, moist but well-drained soil in part shade.

Propagation: 

Insert basal cuttings in spring, or take root cuttings in early autumn or winter.

Problems: 

Powdery mildew, stem canker, rust, Southern blight, stem nematodes, Cercospora and Septoria leaf spots, leaf miners, and caterpillars.

Overview

Height
1 ft. to 3 ft.
Spread
1 ft. to 3 ft.
Growth Habit
Spreads
Light
Part Shade Only
Moisture
Medium Moisture
Maintenance
Low
Characteristics
Fragrant Flowers,
Self Seeds,
Showy Flowers
Bloom Time
Early Spring,
Spring
Flower Color
Blue,
Purple
Uses
Beds and Borders,
Cut Flower
Style
Rock Garden,
Woodland Garden
Seasonal Interest
Spring Interest
Type
Perennials

Phlox divaricata 'Blue Moon'