Phlox paniculata 'Blue Boy'

Also Known As

Blue Boy Tall Garden Phlox

Plant type

perennial

size

H: 36"-42"
W: 18"-24"

planting zones

3a-8b

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Phlox paniculata 'Blue Boy' plant details

Phlox paniculata 'Blue Boy' is a fast-growing broadleaf deciduous perennial with green foliage. In summer lavender flowers emerge. Attracts butterflies and hummingbirds making it an excellent addition to pollinator gardens. Grows well with sun - mostly shade and even moisture water. Does well in average, clay, rich and well-drained soil.

CHARACTERISTICS OF Phlox paniculata 'Blue Boy'

Plant type: perennial
Plant family: polemoniaceae
Foliage: deciduous green
Mature size: 18 IN - 24 IN - wide, 36 IN - 42 IN - tall
Flowers: lavender blooms in summer
Uses: bare root shipping available

GROWING CONDITIONS for Phlox paniculata 'Blue Boy'

USDA Zones: 3a - 8b
Sun exposure: sun - mostly shade
Watering frequency: even moisture
Resistant to: deer
Soil needs: average, clay, rich and well-drained

Nursery contributed plant descriptions

The closest to a true blue paniculata Phlox, 'Blue Boy' flowers midseason on 3' stems. ZONE 4

By: Arrowhead Alpines

This old cultivar was one of the earliest of the so-called 'blue' phlox, the 'changelings' that turn on the charm under dusky or cloudy conditions. 'Blue Boy' is frankly a bit of a lavender bore on a sunny afternoon, but becomes much more interesting at day's end, when he turns a soft blue. Not terrifically floriferous, and the pips are on the small side, but it does bloom quite late in the season. Sadly, we have found it quite prone to mildew, and so extra attention needs to be paid to culture and preventative treatments if you want to keep this old boy shipshape. Introduced by Symons-Jeune.