Garden Phlox 'Blue Boy'

Phloxpaniculata

Family
Polemoniaceae (po-le-moh-nee-AY-see-ee)
Genus
Phlox (floks)
Species
paniculata (pan-ick-yoo-LAY-tuh)
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
36-48 in. (90-120 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
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)
Danger
N/A
Bloom Color
Blue-Violet
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
Other details
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
Regional

This plant is said to grow outdoors in the following regions:

Sacramento, California

Hazlehurst, Georgia

Niles, Illinois

Southold, New York

Concord, North Carolina

Bend, Oregon

Knoxville, Tennessee

Leesburg, Virginia

show all

Featured Videos

Gardener's Notes:

0
positive
2
neutrals
0
negative
Sort By:
Sort By:
S
S
(Zone 8b) | February 2014 | neutral

Phlox 'Blue Boy' is hybridized by B.H.B. Symons-Jeune and introduced in 1949.

W
Magna, UT (Zone 7a) | August 2012 | neutral

The plant I bought kept breaking at the slightest touch. Bits would even break off from wind. In my experience it is a brittle plant. T...Read More

Featured
Painted Lady
(Vanessa cardui)
Red-billed Firefinch
(Lagonosticta senegala)
Featured
Painted Lady
(Vanessa cardui)
Red-billed Firefinch
(Lagonosticta senegala)