Blue Phlox, Forest Phlox, Wild Sweet William, Woodland Phlox 'Chattahoochee'

Phlox divaricata subsp. laphamii

Family: Polemoniaceae (po-le-moh-nee-AY-see-ee) (Info)
Genus: Phlox (floks) (Info)
Species: divaricata subsp. laphamii
Cultivar: Chattahoochee


Alpines and Rock Gardens


Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Flowers are fragrant

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Requires consistently moist soil; do not let dry out between waterings

Where to Grow:

Suitable for growing in containers


6-12 in. (15-30 cm)


18-24 in. (45-60 cm)


USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:

Sun to Partial Shade

Light Shade


Unknown - Tell us

Bloom Color:

Fuchsia (Red-Purple)


Bloom Time:

Mid Spring

Late Spring/Early Summer




Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

From softwood cuttings

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed


This plant has been said to grow in the following regions:

Birmingham, Alabama

Iowa City, Iowa

Pacific Junction, Iowa

Hebron, Kentucky

Wayland, Massachusetts

Barrington, New Hampshire

Exeter, New Hampshire

Concord, North Carolina

Winston Salem, North Carolina

Sunbury, Ohio

Leesburg, Virginia

Spokane, Washington

show all

Gardeners' Notes:


On May 26, 2012, grneyedme from Barrington, NH wrote:

I found this plant at a local Home Depot. I bought two. It has done BEAUTIFULLY with lots of blooms. I am eager to see if it comes back so nicely next year. I have them in as full sun as I can get in my yard. With the rains we've had over the past few weeks here in NH, the results have been great. If you can find this plant, I recommend it highly with it's pretty purple flowers.


On Aug 26, 2006, DeerPhobic from Gig Harbor, WA wrote:

Beautiful plant. I was lucky enough to buy it in Lewisville, TX many years ago. Unfortunately, someone else must of thought it was great, too, because they STOLE it right out of my planting bed in front of my apartment. I came home one day and there was nothing in that spot but a hole. I've been searching for more ever since. Thanks to DG I'm ordering some today.


On May 30, 2006, LawrenceM from Northampton
United Kingdom wrote:

This plant has a strong perfume.