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Phlox subulata 'Emerald Blue'

Common Name(s):

Creeping phlox

Moss phlox

Synonym:

​

Moss pinks

Flower:

Blue

Blooms :

Apr

to:

May

Flowers having 5 notched petals in lavender/blue shades with darker hues toward the center

Botanical Description

Fragrant?

YES

Family:

Polemoniaceae

Herbaceous Plant, Perennial

Foliage:

Green

Leaves awl shaped, evergreen, about 1" long

Fall Color?

YES

Leaves remain green

Semi-Evergreen

Photo by: 

Heading 6

Maintains its green foliage

Oregon Native?

NO

West State Native?

NO

Origins:

Eastern United States from New York west to Michigan

Site Selection

Minimum USDA Hardiness Zone:

3

Water Needs:

M

Sun Needs:

Full Sun

Deer Resistant?

YES

Firewise?

YES

Height:

4-6"

Spread:

12-18"

Growth Rate:

Medium

Native Habitat:

Dry rocky sandy spots on ledges, slopes, and clearings

Soil:

Sandy, loamy, well-drained

Care Recommendations

Maintenance Level:

Low

Fertilizer:

Needs little fertilizer, can apply a balanced slow-release fertilizer or compost in spring

Mulch:

2-3" of hardwood mulch but don't cover stems

Needs full sun, well-drained soil, winter protection, pruning after flowering to promote growth, protection from rabbits

Long Term:

Winter:

Needs protection from excessive moisture and harsh winds

Spring:

Provide full sun, well-drained soil, fertilize lightly, cut back by 1/2 after flowering to promote growth and potential rebloom

Summer:

Provide full sun but afternoon shade in extrme heat, water when dry,

Fall:

Ensure excellent drainage, water if dry, apply a mulch for winter protection, do not prune

General Care Comments:

Easy care plant but to keep it looking nice need to trim back after flowering

Common Problems

Problems are related to improper care such as over watering that cause plants to get mushy

Diseases:

Root rot from poor drainage

Insects:

Spider mites, Phlox plant bugs, aphids

Environmental Problems:

Hardy plant but may get spider mites in excessively hot summers, and root rot from poor drainage

Pests:

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