Border Phlox
Phlox 'Hesperis'

Family: Polemoniaceae (po-le-moh-nee-AY-see-ee) (Info)
Genus: Phlox (floks) (Info)
Cultivar: Hesperis
Hybridized by Janssen
Registered or introduced: 2000

Category:

Perennials

Height:

36-48 in. (90-120 cm)

4-6 ft. (1.2-1.8 m)

Spacing:

18-24 in. (45-60 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)

Sun Exposure:

Full Sun

Sun to Partial Shade

Danger:

Unknown - Tell us

Bloom Color:

Violet/Lavender

Bloom Time:

Mid Summer

Late Summer/Early Fall

Foliage:

Herbaceous

Other details:

This plant is attractive to bees, butterflies and/or birds

Flowers are fragrant

Average Water Needs; Water regularly; do not overwater

Flowers are good for cutting

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:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

From herbaceous stem cuttings

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Gardeners' Notes:

1
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0
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RatingContent
Positive

On Mar 8, 2014, saya from Heerlen
Netherlands (Zone 8b) wrote:

Hesperis is a vigorous hybrid phlox cultivar. It flowers over a long (July to October) bloom period with conical clusters of small, lilac, heavily fragrant flowers that sit on straight, stiff stems. Aptly named as the flowers resemble those of Sweet Rocket or Dame's Rocket (Hesperis matronalis).

Phlox 'Hesperis' probably is an x arendsii hybrid. Arendsii hybrids are crosses between Phlox paniculata and Phlox divaricata, and are noted for having the attractive flowers of the former combined with the compact form of the latter.

Hybridized by Coen Janssen and introduced in 2000.