Coolvista™ Dianella

Southern Living Plants

$29.99
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SKU:
DIANCOOL
Availability : Out of Stock
$29.99
  • Partial Shade to Full Sun (At Least 3 Hours Of Direct Sunlight)
  • Mature Height 12 - 24 Inches
  • Mature Spread 12 - 24 Inches
  • Growing Zones 8 - 11
  • Use As A Filler In Containers

Striking foliage, delicate blooms, and small berries ensure the Coolvista™ Dianella provides visual interest throughout the growing season. This plant is also known as Dianella revoluta ‘Allyn-Citation,’ blueberry lily, blue flax-lily, or black-anther flax-lily. This clump-forming ornamental grass features thin, flat blue-gray foliage that tapers to a point. Deep blue to purple inflorescences hover above the blades of grass in the spring and summer and later transition to blue-colored berries that last for several months.

Once established, this plant is very hardy and can comfortably live in various conditions. The upright, spiky foliage adds color and texture to borders, mass plantings, and containers. This easy-care plant is heat and drought tolerant, ensuring it can handle the summer heat and still look amazing. The Coolvista™ Dianella lives as a perennial in USDA zones 8 through 11.

Coolvista™ Dianella Plant Care

This plant requires full sun to part shade, and 4 to 6 hours of sunlight is enough to sustain growth. Established plants will need water during an extended drought, and newly planted plants will need water when the top few inches of the soil dry out. The soil should be well-draining and mildly acidic or neutral. Feed the plant by placing several inches of organic compost around the base during the spring or apply a slow-release fertilizer. Remove spent blooms and any damaged growth.

This plant is a perennial in warmer areas, but cover the plant if the forecast calls for chilly weather. The greenery will die back if the plant is exposed to cold weather, and if this happens, trim back the dead growth, and new foliage should appear in the spring.

Coolvista™ Dianella Plant Spacing

This spikey grass grows 1 to 2 feet tall and just as wide. Coolvista™ Dianella can be planted as close as 8 to 12 inches apart to create a continuous planting of lush foliage. Space the plants 2 feet apart for individual plantings.

Coolvista™ Dianella Information

USDA Hardiness Zones: 8 - 11
Plant Type: Ornamental Grasses
Light Exposure: Partial Shade to Full Sun (At Least 3 Hours Of Direct Sunlight)
Mature Height: 12 - 24 Inches
Mature Spread: 1 - 2 Feet
Spacing: 8 - 12 Inches
Habit: Upright
Flower Color(s): None
Flower Description:
Bloom Period:
Foliage Type: Evergreen
Foliage Color(s): Green
Foliage Description:
Seasonal Interest: 4 Season Interest
Watering: Low
Resists: N/A
Tolerates: Heat, Drought
Attracts: N/A
Container Role: Filler
Uses: Borders, Containers, Groundcovers, Mass Planting, Wildlife Gardens
Features: Foliage Interest
Brand: Southern Living Plants
Common Name: Coolvista™ Dianella
Other Name(s):
Scientific Name: Dianella revoluta ‘Allyn-Citation’ PP22965

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.