Image 1 of 1

Public Plant Profile

Mountainside® Crater Lake Phlox

Phlox Mountainside® 'Crater Lake'

Category: Groundcover • Phlox

Mountainside® Crater Lake Phlox offers vibrant blooms and is perfect for borders and pollinator gardens.

Request Consultation Browse All Plants

Mature Height: 12-18 inches

Mature Width: 12-18 inches

Bloom Color: Blue

Bloom Time: Summer

Light: Sun

Zone: Zones 4-8

Maintenance: Low

Growth Rate: Moderate

Season of Interest: Spring

Foliage: Deciduous

Community Photos

Upload some of your best photos for this plant by clicking below.

Bold Outdoors Verified Insight

Designed & Reviewed by

Josh Graber

Owner and Landscape Designer · Kansas State University · 25+ Years Experience

B.S. in Horticulture and Landscape Design – Kansas State University

25+ years of industry experience

Description

Mountainside® Crater Lake Phlox is a perennial plant known for its vibrant blue flowers and compact growth habit. It thrives in sunny locations and attracts pollinators, making it a great addition to gardens.

Ideal Conditions

Thrives in full sun to partial shade with moderate moisture. Prefers well-drained soil and can tolerate various soil types.

Soil Preferences

Requires good drainage and moderate moisture. Adaptable to a range of pH levels.

Sun Needs

Sun

Landscape Guidance

Landscape Use

bordermass plantingpollinator garden

Special Features

Attractive flowersdrought-tolerantattracts pollinators

Wildlife Value

Attracts pollinators and provides nectar.

Resistance / Tolerance

Drought tolerant.

Notes from Our Designer

Great for adding color to borders or mass plantings. Works well in rock gardens or as a ground cover.

Related Plants

See How Similar Plants Are Used in Real Landscapes

Explore related plants, compare shape, texture, and overall planting style, and get a better feel for what may fit your own outdoor space.

Design Ideas Using This Plant

Use this page to get a feel for where Mountainside® Crater Lake Phlox may fit in the landscape, then explore similar plants below for more ideas on form, texture, and overall planting style.

What Clients Say

★★★★★

“Josh of Bold Outdoors was a very professional, hard working landscape service provider. He worked with me very well blending his ideas with that I had already done in my landscape. He worked with me instead of telling…”

Ann R.

★★★★★

“Bold Outdoors has provided the highest quality professional landscape design, installation and after installation services at my residence since April, 2014. Josh Graber, the owner of the company, listened to input from…”

Brad S.

Helpful Next Steps

Browse All Plants See Design Services Request a Consultation

Frequently Asked Questions

Is Mountainside® Crater Lake Phlox a good fit for Kansas City landscapes?

That depends on sun exposure, moisture, spacing, and how the plant will be used in the overall design. Bold Outdoors evaluates those practical conditions before recommending a plant broadly.

How should homeowners use this plant information?

Use the plant profile as a planning tool for size, conditions, and visual role, then connect it to the broader landscape design and installation plan for the property.

Next Step

Ready to plan your landscape?

Browse more plants or reach out and we will help you choose the right combination for your space.

Request a Consultation Browse All Plants