Height:

22.0-26.0 Inches

Spread:

30.0-36.0 Inches

Hardiness Zones:

4,5,6,7,8

Flower Color:

White Shades Multicolored

Foliage Color:

Green shades

Sunlight:

Full Sun (> 6 hrs. Direct Sun) Part Shade (4-6 hrs. Direct Sun)

Water Requirements:

Average Water Needs

Soil Quality:

Average Soil Quality Fertile Soil Quality

Soil Chemistry:

Acidic Soil (pH < 7.0) Neutral Soil (pH = 7.0)

Bloomtime:

Early Summer Midsummer Late Summer Rebloomer Long Blooming

Attracts Wings:

Attracts Butterflies Attracts Hummingbirds Bee Friendly

Growth Rate:

Medium

Garden Style:

Patio Container Cottage Eclectic Prairie Rain Garden

Other Features:

Border Plant Container Cut Flower Fragrant Flowers Mass Planting

Origin:

Native to North America

Phlox is unequaled for its showy blooms over a long period in summer. Though it is one of the most popular perennials available, it does require some maintenance to sustain its health and vigor.

Phlox grows best in rich, moist soil in full sun. It will thrive with fertilizing every other month and consistant moisture levels. Overhead watering should be avoided since some varieties of phlox are susceptible to powdery mildew. This can be avoided or diminished by providing ample air circulation around the plants and by thinning them out periodically. Deadheading will prolong bloom time and prevent self-seeding.

Growing Temperature:

60-65° F

Holding Temperature:

40-50° F

Soil PH:

5.8-6.2

EC (What is EC?):

2.0-3.5 (pour-through method)

Fertility:

Best performance is at light to moderate fertility levels. Apply 100-150 ppm N via constant liquid feed, with higher feed (200-300 ppm N) as needed. Controlled-release fertilizer may also be used at the medium labeled rate.

Vernalization:

Vernalization will improve flower count and uniformity of flowering, provide 8-10 weeks between 35-40° F.

Pests & Diseases:

Aphids, thrips and spider mites are the main insect pests. Whitefly and leafhoppers will sometimes also affect hybrid phlox. Scout and treat as needed. Hybrid phlox are resistant to powdery mildew, however plants should still be watched for this disease as well as for leaf spots, botrytis and crown/root rots. Proper growing conditions will help to minimize the incidence of diseases.

Potting & Timing:

For best results, plant plugs in late summer for sales the following spring. Bare root starting material or vernalized plugs may be planted during spring of the same year, with bare root creating a much fuller plant.

Moisture:

Hybrid phlox prefer moderate amounts of moisture. Water thoroughly and then allow to dry slightly before irrigating again.

Planting Level:

Plant plugs at soil level, bare root with crown slightly below soil line.

PGRs/Pinching:

Uniconazole (Sumagic/Concise) at 5 ppm or a tank mix of Daminozide (B-Nine/Dazide) 2000 ppm + Uniconazole (Sumagic/Concise) 3 ppm are effective at controlling stem elongation. May be repeated at 7 day intervals if needed. When planting from unvernalized plugs in late summer,a soft pinch 1-2 weeks after transplant will improve branching.

Lighting:

After being vernalized, hybrid phlox can be forced under natural daylength conditions. Higher light intensities will result in higher quality plants.

Other Comments:

Hybrid phlox are an ideal plant for a premium 2 gallon container as well, this size is best planted from Grade 1 bare root in late winter to early summer for same season sales.

Awards

Michigan State University Top Performer -- 2019

Michigan State University Top Performer -- 2020

Michigan State University Top Performer -- 2021

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