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Mountainside Crater Lake Phlox

$29.99
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$29.99

Mountainside ‘Crater Lake’ phlox creates a puddle of blue in the early season garden, a perfect compliment to tulips, daffodils and other spring bulbs. New for 2021, ‘Crater Lake’ is a more refined spreader than some other spring phlox (P. subulata). It stays a bit tighter and closer to the ground. After about three years, it will spread to about 24 inches. Until then, it will be about 12 to 16 inches across. It’s 6 inches tall. ‘Majestic Magenta’ is the other color in the Mountainside spring phlox series.

Mountainside ‘Crater Lake’ spring phlox, a native perennial ground cover, is fragrant. This is a great plant for sunny areas with gritty, poor soil that has decent drainage. It won’t be happy in sopping wet soil. Good for a rock garden, as a front-of-the garden bed perennial or a ground cover with shrubs. Spring phlox may be semi-evergreen, depending on the climate. In a pot, it serves as a spiller. Transplant to the ground at the end of the season.

Mountainside Crater Lake Phlox Care

Spring phlox is very low maintenance. About the only task is shearing or cutting back the plant in early summer right after it is done blooming. This helps the plant develop more dense foliage and encourages reblooming. Divide every few years in summer.

Spring phlox is fairly drought tolerant. However, most plants benefit from watering during extended hot, dry spells. It is salt tolerant, making it a good choice for planting near pavement that is treated in winter with deicers. It can survive several days under snow, too.

Mountainside Crater Lake Phlox Spacing

In the landscape, space about 24 inches apart. They can be planted in a row or in a cluster of three Mountainside Crater Lake to create a lovely spot of color.

Click here for more information on plant container sizes.

Plant Addict Guarantee (Included On All Plant Orders)

Plant Addicts guarantees your plant(s) will arrive happy and healthy, but the plant(s) are being shipped through the mail and accidents happen. If the plant is dead, has dried out roots or the incorrect item was shipped just notify Plant Addicts within 3 days upon delivery. We may ask for pictures but will try to make it as easy as possible for you. Please note plant(s) with damaged branches or wilted leaves will not qualify for this guarantee. Plants are very resilient and will rebound quickly when cared for correctly.

For information on how to care for you new plant please check out our guide. Guide: How to Care for Your New Plant(s)

Plant Addicts Warranty - 1 Year (Extra Purchase Required)

We encourage all plant lovers to purchase the Plant Addicts Warranty whether you’re new or an expert. There are many variables outside our control and yours that can cause the demise of your plant(s). Examples would be hungry animals, drought, poor soil conditions, over watering, disease, insects & many other factors. The Plant Addicts Warranty is a 1 year warranty protecting you from all the unknowns and will replace your plant if it moves on to the plant afterlife.

The warranty is purchased on a per plant basis and must be purchased at the same time as the plant purchase. We will cover 100% of the price of the plant but the warranty does not cover shipping cost. Simply let us know if your plant has died within one year of receiving it and we’ll get you a new one shipped out. We may ask for photos for documentation purposes but again we’ll try to make it as easy as possible.

For more information, please go to our Shipping & Returns page at the bottom of the website.

Guide: How to Care for Your New Plant(s)

Planter Shipping

Standard Colors: 2-3 business days

Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice

Please Note: On special orders there can not be any cancellations

Plant Shipping

Time of Order:

Summer Shipping

  • If there is extreme heat we’ll delay shipping.  
    • We’ll have to review what areas the plants are traveling through along with your location


Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.

It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.