Garden Phlox

Phlox paniculata

Family: Polemoniaceae (po-le-moh-nee-AY-see-ee) (Info)
Genus: Phlox (floks) (Info)
Species: paniculata (pan-ick-yoo-LAY-tuh) (Info)
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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

Where to Grow:

Unknown - Tell us


36-48 in. (90-120 cm)


24-36 in. (60-90 cm)


USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

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:

Full Sun



Bloom Color:

Magenta (Pink-Purple)

Bloom Time:

Mid Summer

Late Summer/Early Fall



Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:


Propagation Methods:

By dividing the rootball

From herbaceous stem cuttings

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; stratify if sowing indoors

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds


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

Calgary, Alberta

Fayetteville, Arkansas

Jacksonville, Florida

Lula, Georgia

Aurora, Illinois

Chicago, Illinois

Machesney Park, Illinois

Niles, Illinois

Washington, Illinois

Floyds Knobs, Indiana

Goshen, Indiana

Shawnee Mission, Kansas

La Grange, Kentucky

Roslindale, Massachusetts

Mason, Michigan

Owosso, Michigan

Minneapolis, Minnesota

Saint Paul, Minnesota

Sedalia, Missouri

Loudon, New Hampshire

Baldwinsville, New York

Hurley, New York

Jordan, New York

Rochester, New York

Whiteville, North Carolina

Pembina, North Dakota

Bucyrus, Ohio

Columbia Station, Ohio

Springboro, Ohio

Harrah, Oklahoma

Newalla, Oklahoma

Baker City, Oregon

Bend, Oregon

Sumter, South Carolina

Fairview, Tennessee

Viola, Tennessee

Kerrville, Texas

Lubbock, Texas

Broadway, Virginia

Palmyra, Virginia

Kalama, Washington

Spokane, Washington

Marinette, Wisconsin

Pulaski, Wisconsin

Wittenberg, Wisconsin

Cody, Wyoming

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Gardeners' Notes:


On Jun 3, 2014, coriaceous from ROSLINDALE, MA wrote:

The species is generally quite mildew resistant and more vigorous than the cultivars. Height varies, but some forms can reach 6' tall. Even the tallest rarely need staking. Flowers are usually magenta.

Despite the common belief, most of the cultivars are selections of P. paniculata and few if any in commerce today are hybrids. In buying them, I consider resistance to powdery mildew first.

Performance is generally best with regular division every 2-3 years. Plants are best divided in early spring before they reach 6". If you have to divide later, the top growth should be cut back to 6". I don't recommend fall division.

Seedlings of cultivars can give interesting results, but if allowed to self-sow freely eventually tend to revert to type, with m... read more


On Sep 8, 2009, FlowerManiac from Coppell, TX (Zone 8a) wrote:

This one is the 'Texas Pink' cultivar, bred to take the hot humid Texas summers and supposedly resistent to powdery mildew. That certainly has been my experience, I have never seen a single speck of that stuff on these babies. They are continuing to thrive and spread with a real minimum of care, close to ten years since I planted them there.


On Oct 23, 2008, eliasastro from Athens
Greece (Zone 10a) wrote:

Didn' t thrive in my area, obviously needs cold at dormancy period.


On Jan 28, 2006, Gabrielle from (Zone 5a) wrote:

Garden Phlox has always done okay for me. They looked good for awhile, powdery mildew hit, they flopped, blooms ended, I cut them back. But last year I did something different, and I don't know if that is what helped or if it was a coincidence, but they were amazing! In the early spring, while they were still fairly short, I thinned out a lot of the smaller stems. I know that would help make them stronger and reduce powdery mildew, but what was amazing was they bloomed continuously for months. As the blooms would start to fade, new ones would form in the old clusters. I never deadheaded them, never fertilized them, nothing. No powdery mildew, no flopping. I will definitely thin them again. Blooms July-September in my garden.


On Oct 23, 2004, SalmonMe from Springboro, OH (Zone 6a) wrote:

Found this plant to be susceptible to powdery mildew (even the "disease resistent" cultivars) in Virginia - zone 7. HOWEVER, it is gorgeous and has a very long bloom time with regular deadheading. Adequate spacing is enough to keep most of the mildew threat at bay, also try to avoid watering from above. Water at base of plant. Given room for air circulation, this plant is fabulous. Bonus: it attracts Black Swallowtail butterflies :)


On Sep 17, 2004, pokerboy from Canberra
Australia (Zone 8b) wrote:

A perennial plant with fragrant pink or white flowers in summer. Likes a moist and well drained soil in full sun to light shade. Divide clumps every 4 years. Very cold tolerant. Great for lightly shaded woodland gardens. pokerboy.


On Jan 29, 2003, lupinelover from Grove City, OH (Zone 6a) wrote:

The unimproved species is magenta in color, but many cultivars have been introduced in a wide variety of single and bi-colors. The species has good mildew tolerance, as well as compact plants that seldom need to be staked.

Grow this by silver-foliaged plants to make it a good neighbor.