Species

Phlox paniculataGarden Phlox

65 other cultivars

perennialN. America Native

Phlox paniculata Silvermine

Phlox paniculata 'Silvermine'

The Story

Plant Bio

Phlox paniculata 'Silvermine' is an herbaceous perennial that displays upright growth with large, terminal clusters of fragrant, pure white, star-shaped flowers and lush green foliage during the summer months.

This heirloom cultivar is distinguished by its large panicles of pure white flowers, creating a striking contrast in the summer border. It is, however, known to be susceptible to powdery mildew.

Uses & Benefits:

Provides fragrant, attractive clusters of white flowers throughout summer, enhancing garden aesthetics.

Deer resistant and low-maintenance, suitable for busy gardeners.

Supports pollinators like bees and butterflies, promoting biodiversity.

SpeciesPhlox paniculataGarden Phlox

Essentials

At a Glance

Plant Type

Perennial

Height

36 inches

Width

24 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

North America

Toxicity

Non-toxic to humans and pets

Bloom period

Mid-summer – Late summer

In flower about 2 months of the year

Planting

How to Grow

Tuck seeds or cuttings into well-drained soil in spring.
Water thoroughly after planting to settle soil around roots.
Fertilize with a balanced fertilizer in early spring.
Prune back after blooming to encourage bushy growth.
Mulch around base to retain moisture and suppress weeds.
Divide clumps every 3-4 years in early spring for best vigor.

Pro Tip

Choose a sunny spot with good air circulation for healthy growth.

Keep It Thriving

Care Guide

Do

Water regularly during dry spells 🌱
Prune after flowering to maintain shape
Fertilize annually with compost or balanced fertilizer

Don't

Avoid overwatering to prevent root rot ❌
Don’t disturb roots during peak flowering
Skip heavy pruning in late fall

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Fertilize
Pest Check
Spring Cleanup
Stake

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

White-flowered borderFragrant cottage garden bedPollinator-friendly planting

Companion Plants

Shasta daisy Coreopsis EchinaceaLavender Salvia

Multiply

Propagation Methods

Good to Know

Common Questions

Phlox paniculata Silvermine questions

What zones can Phlox paniculata Silvermine grow in?

Phlox paniculata Silvermine is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Phlox paniculata Silvermine deer resistant?

Yes — Phlox paniculata Silvermine is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Phlox paniculata Silvermine bloom?

Phlox paniculata Silvermine typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Phlox paniculata Silvermine need full sun?

Phlox paniculata Silvermine does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.