Black Adder

Black Adder

Phormium cookianum ‘FIT01’ PP20451

This evergreen perennial holds its dramatic dark burgundy foliage and its size. Great in mixed borders, and containers, and can even be planted as a hedge. Leaves provide structure in flower arrangements. Protect from frost in colder climates.

Sunset Zones

7-9, 14-24

USDA Zones

15°F to 20°F USDA zones 8B–10

This plant is suitable for your USDA Zone 10b

Black Adder Features

Plant Dimensions

4-5' H x 3' W

Landscape Use

Accent, Border, Container, Cut Flowers/Foliage, Firescaping/Fire Wise, Slope

Plant Type


Growth Rate



Full coastal sun to part shade in hotter climates

Special Feature

Compact habit, Deer Resistant, Dwarf Habit, Easy Care, Salt Tolerance, Water-wise


Dramatic dark foliage year-round stays under 5 feet

Flowering Season


Black Adder Plant Care

Water Needs

Medium Water Once Established


Little to none


Trim damaged foliage at base, if needed


Well-drained soils

Planting Instructions

1. Dig in your native soil a hole as deep and wide as the container. We recommend planting in native soil for best acclimation.
2. Fill the hole with water and thoroughly water the new plant; allow both to drain.
3. Gently place the plant on its side and remove the pot. Place your hand on the bottom of the plant and put it in the hole.
4. Return native soil around the root ball, wetting and gently tamping down.
5. To complete, create a shallow trench around the base of the plant to contain the water when watering.

Shop for your Sunset plants

Your zip code 90278 is located in Zone: 10b with a temperature range of: 35 to 40 °F.