Species garden phlox
cluster of purple-white, velvety flowers with green stems, and sepals

garden phlox

Phlox paniculata 'Katherine'

Also Known As - border phlox,common phlox,common phlox
Garden phlox (Phlox paniculata 'Katherine') is an attractive flowering plant, featuring fragrant clusters of star-shaped pink and white blooms. Growing up to 3-4 ft tall with a similar spread, this annual or perennial is a suitable addition to garden beds, borders, or wildflower gardens. It prefers full sun and well-drained soil, with regular watering for best display. Flowering from mid-summer to autumn, it is a great source of nectar for pollinators. Deadheading will encourage reblooming and more profuse flowers. With its upright habit and impressive color, this hardy, low-maintenance plant is sure to become a favorite garden addition.

Cycle:

Herbaceous Perennial

Watering:

Average

Propagation:

Seed Propagation

Hardiness Zone:

4 - 8

Flowers:

Pink-purple to white Flowers In Summer

Sun:

Full sun, Part sun/part shade

Soil:

Rocky , gravelly , dry, Well-drained

Fruits:

green Fruits In Autumn Ready In Fall

Leaf:

Yes

Leaf Color:

green

Growth Rate:

High

Maintenance:

Moderate

Care Level:

Medium

watering

Garden phlox (Phlox paniculata 'Katherine') should be watered about 1 to 2 inches per week during its growing season, typically between May and September. During periods of extreme heat, phlox should be watered more frequently. For container-grown plants, daily waterings in the afternoon are best. Soil should be kept evenly moist but not waterlogged. During the winter months, phlox should be watered only when soil is dry.

sunlight

Garden phlox (Phlox paniculata 'Katherine') is a species of plant that prefers to grow in full sun for best blooming. This means that the plant should receive at least 6 hours of direct sunlight each day in order to flower. If the plant does not receive enough sunlight, the flowers may not be as full and vibrant as they would be if grown in full sun. In addition, the plant will need to be watered regularly to ensure that it has sufficient water and nutrients to support its growth.

pruning

Garden phlox (Phlox paniculata 'Katherine') is best pruned early to mid-spring, before any new growth appears. Start pruning by deadheading - removing any spent flowers and seedpods. This helps the plant focus its energy on producing more flowers. After deadheading, prune back the stems to a length of 6-12 inches, depending on the size and health of the plant. Be sure to remove any weak or damaged stems, as well as any that are overcrowding the plant. As the season progresses, trim the stems again, after flowering is finished. This will help keep the plant looking tidy. Once a year, in late winter, cut the entire plant back, removing up to 1-third of the stems, until the woody parts are exposed. This helps stimulate new growth and rejuvenate the plant.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Phlox paniculata 'Katherine' typically starts flowering in late spring or early summer, usually in May or June.

Starts Flowering

Phlox paniculata 'Katherine' typically starts flowering in late spring or early summer, usually in May or June.

Harvest Fruit

The best time to start harvesting the fruits from Phlox paniculata 'Katherine' is in July and August.

Hardiness Map