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Prairie Phlox

Phlox pilosa

Prairie Phlox

General Information

Prairie Phlox is an easy-to-grow, clump-forming herbaceous perennial.

Prairie Phlox is typically found in rocky or dry open woods, valleys, thickets, meadows, prairies and glades. Prairie Phlox prefers full sun to partial shade and rich, well-drained soils. It is more tolerant of dry conditions than most Phlox species.

Prairie Phlox has slightly-fragrant, showy pink to lavender flowers and blooms between May and July. It occasionally reblooms in the fall.

Meskwaki Indians made an infusion from the leaves to purify the blood and as a wash for eczema.

Plant Information

Plant Type:

Herbaceous perennial

Sun Preference:

Full Sun * Part Sun

Soil Moisture Preference:

Medium-Wet * Medium * Medium-Dry * Dry

Plant Height:

2 feet

Plant Width:

1 foot

Plant Spacing:

1 foot

Flower Color:


Flower timing:

May to July

Culture Information:

Prairie Phlox works best in pollinator gardens, butterfly gardens, native gardens, rock gardens, rain gardens, naturalized areas, drought tolerant gardens, cottage gardens, meadows, prairies, or borders. Prairie Phlox tolerates sunnier and drier conditions than Wild Blue Phlox.

When first planted, Prairie Phlox should be watered weekly for first few months, unless at least an inch of rain has been received in the last week to help it get established. After it becomes established, Prairie Phlox appreciates some watering during extended dry periods.

Prairie Phlox can be cut back to the ground in late fall or over winter. Some maintenance is required to keep it from spreading into unwanted areas. Summer mulch is recommended to keep the root zone cool.


Clay Soil
Dry Soil

Pests & Disease:

Spider mites (quite common around here) can be a serious problem for Prairie Phlox. Spider mites tend to be a problem during hot, dry conditions. They can be removed with a good spray from a garden hose.

Prairie Phlox is resistant to Powdery Mildew. It has no serious disease problems.

Prairie Phlox has a low flammability rating.

Wildlife Use:

Pollinators: Prairie Phlox is extremely attractive to bees and butterflies. Prairie Phlox supports bumblebees, Anthophorine bees, little carpenter bees (Ceratina spp.), cuckoo bees (Nomada spp.), and green metallic bees (Agapostemon spp.). It also supports butterflies like American Painted Lady, Sulfur, and Swallowtail butterflies.

Birds: N/A.

Mammals: Rabbits, deer, and groundhogs will eat the foliage of Prairie Phlox.

Other: N/A.

Native to:

More Information:
NC State Plant Database:
Missouri Botanical Garden:
TN-KY Plant Atlas

Other Link:

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