Wild Sweet William (Phlox divaricata)
[flox div-air-ih-KAY-tah]

Deciduous Perennial in the Polemoniaceae Family

Phlox divaricata, the wild blue phlox, woodland phlox, or wild sweet william, is a species of flowering plant in the family Polemoniaceae, native to forests and fields in eastern North America. Wild blue phlox is a semi-evergreen perennial growing 25–50 cm (10–20 in) tall with opposite, unstalked, hairy leaves 2.5–5 cm (1–2 in) in length and ovate-lanceolate in shape. Flowers appear in late spring and early summer. They are pleasantly fragrant and 2–4 cm (34112 in) in diameter, with five petals fused at the base into a thin tube. The petals are a variety of pastel colors: blue-lavender, light purple, pink, or white.


Plant Data

Mature Size 9 - 18 inches tall. 9 - 18 inches wide.
Sun Exposure Full Shade - Part Shade
Moisture Tolerance Medium - Wet: Water weekly for the first few weeks and often enough to keep the soil lightly moist thereafter. Keep the foliage as dry as possible by applying the water to the soil rather than the foliage.
Zones 3a - 8b
Tags Fillers, Illinois Native, Rabbit Resistant, Wet Site Tolerant, Attracts Birds, Attracts Butterflies, Attracts Hummingbirds, Blooms for 4 Weeks or More, Drought Tolerant, For a Sunny Spot, Fragrant, For a Shady Spot, Dry Shade Tolerant, Deciduous, Deer Resistant, Reblooming, Showy Flowers, Thornless, Border, Butterfly Garden, Container, Cottage Garden, Eclectic Garden, Edging, Formal Garden, Hummingbird Garden, Low Maintenance, Mass, Prairie Garden, Rain Garden, Rock Garden, Perennial, Well-Drained Soil, Moist Soil, Normal Soil, Native to North America, Alpine Garden, Groundcover, Salt Tolerant, Poor Soil, Attracts Pollinators, Non-Allergenic
Bloom Period April to May
Flower Color Rose/Lavender Or Violet/Blue

More Info from Experts

Commonly Planted with...

Aquilegia, Carex albicans, Carex plantaginea, Heuchera, Dryopteris marginalis or Polystichum acrostichoides.
More Photos: Google Image Search & Flickr

© North Shore Plant Club 2022. Privacy Policy, Terms & Conditions.

Limited Availability

We try very hard to source exactly what you’d like, but sometimes growers run out of plants! While this variety is a great deal at the price shown, we know that it has limited availability. If you want the plant even if it might be more expensive, or in a different size or quantity -- after you place your order, just send us a quick note at help@northshoreplantclub.com. Then, we’ll try to get you some version of this from one of our growers. And if we can’t get it from anywhere, of course, we’ll send a refund!

Field-Grown vs. Greenhouse-Grown Plants

Plants which are well-adapted to our local climate are most often field-grown (outside). Field-grown plants are generally cheaper and have the advantage of already somewhat acclimated to our cold winters, but that means they’re not artificially far along in the spring and tend to bloom at the normal time in our area.

Spring annuals and tender perennials are typically grown in Greenhouses so they can be ready and luxurious exactly when customers want them. Some perennials are also “forced” into early bloom in greenhouses. In May, there can be a very big difference between field-grown and greenhouse-grown plants of the same type. The latter typically look good right away (so they’re a great choice where that’s important), but we typically pay a premium for it.

Benefits of Membership

Want a better way to get great plants and make your yard look awesome? Create your account below and get:

  • The best plants… from the same sources the pros use, but at near wholesale prices
  • More plants in more sizes than anywhere else… whether you’re looking for classics or rarities; annuals, perennials or shrubs; one plant or a whole yardful!
  • "No Contact" delivery or easy pick-up at a site near you without fighting the retail crowds. You choose!

Membership is free, but — since we rely on delivery and local pick-up — you have to live near one of our hubs (or be willing to drive to a site to pick them up). If you live farther away, and would like to help us bring the club to your neighbors, please email helpusgrow@northshoreplantclub.com.

Already a member?


About Ordering From The Plant Club

To secure the best prices for club members and make sure we know the current plants available from each nursery, we take orders only a couple of times a month.

Shoot us an email at help@northshoreplantclub.com, and we'll be happy to talk about plants or let you know when it's time to buy them!

No Pricing or Availability Right Now

We order from a rotating cast of the best nurseries in the Great Lakes region. It looks like we've offered this plant in the past, but the nurseries we're working with this week don't appear to have it in stock at the moment.

Our goal is to bring as many plants together under "one roof" as possible, so we'll try hard to make it available again in the future!