Black Adder Phormium
Black Adder Phormium Black Adder Phormium Closeup
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Black Adder Phormium

As low as $77.95 was $99.94
Availability: In stock
Planting Pros Recommend:
Nature Hills Root Booster - 8 oz. bag - Only: $14.95
Root Stimulator - 32 oz. bottle - Only: $14.95

Striking Dark Accent Black Adder Phormium

  • Bold Form Catches the Eye
  • Erect, Sword-Like Leaves
  • No Sharp Points
  • Delightful Droop at Leaf Tips
  • Incredible Dark Burgundy Color Won't Fade in the Sun
  • Lustrous Finish Reflects the Sun
  • Full Sun to Part Shade
  • Compact and Easy Care
  • Versatile
  • Excellent "Thriller" in Containers
  • Add Nearly Black Foliage for Cut Flower Arrangements
  • Tolerates Coastal Conditions
  • Moderately Drought Tolerant Once Established in the Soil
  • Resists Wind
  • Deer and Rabbits Don't Prefer the Taste
  • Featured on Firewise Plant Lists

For an on-point architectural focal point for your garden, rely on one of the darkest Phormiums on the market. The incredible hue and form of Black Adder Phormium (Phormium colensoi 'FIT01' PP #20,451) makes a striking accent plant throughout your landscape.

"Touchable" blade-like leaves stand up straight without being stiff or pokey. The strappy leaves droop enchantingly at the ends.

A breeding breakthrough, Black Adder is one of the very darkest cultivars of New Zealand Flax.

Although the complex color is nearly black, it is burnished with a deep burgundy-red overcast.

The glossy finish helps protect the exceptional color from fading in strong sun. It can be grown in-ground, in containers, in full sun or partial shade.

Clump-forming Black Adder tolerates heat, salt, wind, and periodic drought once established if grown in soil. Rabbits and deer tend to leave it alone.

Compact Black Adder Phormium is a perennial with "personality plus". Use it with pride to make a graphic visual statement in your low-maintenance landscape.

People love using these popular plants, don't miss out! Go ahead and order Black Adder Phormium from Nature Hills as soon as you see it in stock on the site.

How to Use Black Adder Phormium in the Landscape

Use a single plant as a fantastic specimen in an outdoor container. Duplicate this treatment for a very modern statement along the length of a balcony, patio or deck.

Try a matching pair flanking either side of your front door to boost curb appeal. Your home's exterior will be ready to grace the cover of magazines.

Use several plants as a colorful, low hedge to define your landscape. Plant 18 inches apart on center, measuring from the center of one to the center of the next.

Black Adder also plays well with other plants. Use as a high-contrast accent in a mixed shrub border; repeating their use in a sinuous ribbon of dark color.

Even Northern gardeners in colder zones can enjoy their handsome good looks of their upright leaves in seasonal containers.

Once Black Adder Phormium is established in your soil, it needs only occasional watering. Use in Xeriscapes, gravel or rock gardens.

This plant is listed on several state Firewise Plant lists. Use in your defensible zone to help protect your property.

#ProPlantTips for Care

Plant in full sun or part shade. Black Adder needs at least four hours of direct sunlight for the best color.

Well-drained soils are a must, so elevate your planting in a raised bed or container if you see puddles long after a rainfall. Bring in a heap of additional soil and plant in that mound.

Pay careful attention to water the first season, and for the life of containerized plants. Give it water in prolonged droughts to protect your investment.

In late winter, remove older, damaged or discolored leaves out at the base of the clump. Do not shorten using straight cuts along the top. Rather, trim at a diagonal all the way down at the bottom.

Allow the leaf remnant to dry for a week, then come back and remove it completely. Try to enjoy this time with your plant as an exercise in mindfulness.

There is nothing as compelling as a properly cared for Phormium. Order the fascinating, dark Black Adder Phormium from our expert growers today.

Buying Options for Plants

Nature Hills sells a large variety of plants with several options available. Plants are offered in both potted containers and as dormant bare root without soil. Here is a helpful resource to understand your options as you create a beautiful landscape with help from Nature Hills.

Ever wonder what a larger plant will mean for your landscape? Container Sizes are really all about the age of the plant!

Seasonally, Nature Hills offers hand selected, high quality bare root trees, shrubs and perennials. Bare root plants are sold by height from the top of the root system to the top of the plant. Plants may be taller than the height minimums.

  • Popular sizes of select trees are 1 foot, 2 feet, 3 feet, etc.
  • Popular sizes of select bare root plants is 1 foot, 18 inches, etc.

Nature Hills Container Size by Volume

Young Plants to 18 Months
Size Volume
2"x2"x3" Ranges from .18 to .21 dry quarts / .198 to .23 dry liters in volume
4.5" Container Equal to .65 dry quart / .72 dry liter in volume
Sprinter Pot Equal to .63 dry quart / .69 dry liter in volume
4" Container Ranges from .31 to .87 / .35 to .96 dry liter in volume
6" Container Equal to 1.4 dry quarts / 1.59 dry liters in volume
1 Quart Equal to 1 dry quart / 1.1 dry liter in volume
5.5" Container Equal to 1.89 of a dry quart / 2.08 dry liters in volume
4"x4"x5" Ranges from .8 to 1.1 dry quarts / .88 to 1.2 dry liters in volume
4"x4"x6" Ranges from 1.0 to 1.3 dry quarts / 1.1 to 1.41 dry liters in volume
4"x4"x9" Ranges from 1.1 to 2.1 dry quarts / 1.2 to 2.3 dry liters in volume
4"x4"x10" Ranges from 1.7 to 2.3 dry quart / 1.87 to 2.53 dry liters in volume
Plants 18 Months - 2.5 Years Old
Size Volume
2 Quart Equal to 2 dry quarts / 2.2 dry liters in volume
#1 Container Ranges from 2.26 to 3.73 dry quarts / 2.49 to 4.11 dry liters in volume
5"x5"x12" Equal to 3.5 to 4.3 dry quarts / 3.85 to 4.74 dry liters in volume
Plants 2 - 4 Years Old
Size Volume
#2 Container Ranges from 1.19 to 1.76 dry gallons / 5.24 to 7.75 dry liters in volume
#3 Container Ranges from 2.32 to 2.76 dry gallons / 10.22 to 12.16 dry liters in volume
Plants 3 - 5 Years Old
Size Volume
#5 Container Ranges from 2.92 to 4.62 dry gallons / 12.86 to 20.35 dry liters in volume
#7 Container Ranges from 5.98 to 6.08 dry gallons / 26.34 to 26.78 dry liters in volume

About Plant Sentry™

Plant Sentry is designed to protect both consumers and the nursery trade from invasive plant pests and diseases. Sites that display the Plant Sentry protection badge are protected from consumers buying and nurseries shipping material carrying invasive pests and diseases.

This proprietary eCommerce software prevents the shipment of a restricted plant to each state. The Plant Sentry system includes a shipment certification program. The Plant Sentry Compliance Officer works closely with and each nursery or fulfillment center to ensure only compliant plants are sold to customers.

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To obtain a more accurate shipment time-frame, simply enter your zip code in the “Find Your Growing Zone” box to the right. Our plants are grown all over the country and lead time on items may be different because of this. Once your order is placed, you will also receive the specific shipment time-frame information as part of your order confirmation. Once an item ships, you will receive shipment notification and tracking numbers, so you can follow along while your plant travels to your doorstep.

Shipping Rates

At Nature Hills we handle, package and ship the products you order with the utmost care to ensure healthy delivery. Shipping and handling charges are calculated based on the tables below. Please note that some items include an additional handling surcharge, these will be noted on the item's product page.

From To S&H
0 - 19.99 14.95
20 - 49.99 17.95
50 - 69.99 19.95
70 - 99.99 24.95
100 - 129.99 29.95
130 - 130+ Approx 25%

Click here to see our full rates


Black Adder Phormium  Is Suited to Grow in Zones 8-10
Growing Zones 8-10
More Information
Botanical Name Phormium colensoi 'FIT01'
Type Perennial
Mature Height 3 - 4 feet
Mature Spread 2 - 3 feet
Sun Exposure Full Sun, Partial Shade
Soil Type Well Drained
Moisture Medium
Growth Rate Medium
Foliage Color Burgundy
Fall Color Burgundy / Purple
Pollinator Friendly No
When To Prune Late Winter