Details4-6" tall x 15-18" wide. Prairie Phlox (Phlox villosissima) is a wide-ranging native species that blooms in late spring with hundreds of fragrant, bright pink flowers. Use this perennial as a groundcover for harsh, poor soil growing sites where it suckers to form colonies of low growing plants. Our selection (previously known as Phlox pilosa ssp. riparia) hails from central TX and is an excellent choice for areas with hot, humid summers.
|Common Name||Prairie Phlox|
|Botanical Name||Phlox villosissima|
|Zones||5, 6, 7, 8, 9|
|Light Requirements||Full Sun|
|Mature Height||4-6" tall|
|Mature Spread||15-18" wide|
|Bloom Time||Late spring to early summer|
|Ships As||Potted Plant|
|Planting Time||Spring / Summer, Fall|
|Soil Type||Clay Soil, Sandy Soil, Average Soil, Compost Enriched Garden Loam Soil, Low Fertility Soil, Well-Drained Soil|
|Soil Moisture||Drought Resistant / Waterwise|
|Amount of Rain||10 to 20", 20 to 30", 30 to 40"|
|Advantages||Deer Resistant, Rabbit Resistant, Fragrant Flower / Foliage, Native|
|Ideal Region||Anywhere In The US, Northeast, Midwest, Southwest, West, Pacific Northwest|
|Neonicotinoid-Free||Yes - Learn More|
|Ships to Hawaii, Alaska & Canada||No|
Phlox are generally sun-loving native plants that attract butterflies. Many phlox varieties are wonderfully fragrant. Phlox can be divided into two groups;
Preferred growing conditions:
- Grows best in compost enriched garden loam. Avoid heavy, wet soils and clay.
- Likes to be mulched to keep soil more evenly moist. Most common mulching materials are fine.
- Likes to grow in soil that stays evenly moist.
- Plant in full sun
- Enrich the soil at planting time with good quality compost and Yum Yum Mix.
- Phlox can sometimes be troubled by powdery mildew, but planting mildew-resistant varieties, keeping the soil evenly moist and not watering overhead in the afternoon/evening will prevent most outbreaks.
- Deadhead to prolong blooming.
- These perennials appreciate yearly fall applications of Yum Yum Mix and compost to improve the humus content and enhance water-holding capacity of the soil.
- These species grow in a wide range of soil types including clay.
- Most of these groundcover varieties prefer coarse-textured mulches like pine needles, crushed nut shells and crushed gravel.
- Many of the groundcover phlox are xeric and only need periodic deep watering during summer heat.
- Plant in hot, full sun areas.
- They only need modest soil improvement, so use a few handfuls of Yum Yum Mix and good quality compost to prepare the soil for planting.
- These are low-care perennials that need little attention once established.
- Cut back herbaceous species like Phlox nana in mid-spring. Evergreen types like P. subulata and P. kelseyi need no trimming or cutting back.
- Fertilize once in the fall with Yum Yum Mix and Planters II.
2. Phlox nana, P. kelseyi, P. subulata and others (Groundcover Phlox)
These perennial species are low growing and are used as groundcovers. Some are evergreen and most have fragrant flowers. Preferred growing conditions:
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USDA Hardiness Planting Zones
To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.
- If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
- If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).
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