Phormium tenax (New Zealand Flax)
Stunning focal point for the garden, Phormium tenax (New Zealand Flax) is a very ornamental and robust evergreen perennial featuring a basal rosette of rigid, sword-shaped, upright leaves up to 10 ft. long (3 m), ranging from green to bronze to chocolate-brown. Some cultivars produce variegated leaves, beautifully striped or edged with pink, red, orange or purple, adding a bright note to the garden year-round. The architectural foliage is topped in summer with a dramatic flowering stalk reaching up to 12 ft. (360 cm) and bearing panicles of tubular flowers, about 2 in. long (5 cm), in shades of deep red or reddish-orange. Showy, they attract nectar-seeking birds. Native to New Zealand, Phormium tenax is primarily grown for its attractive foliage.
- Adds architectural height to the garden and grows up to 1-12 ft. high (30-360 cm) and 1-3 ft. wide (30-90 cm).
- Easily grown in average, medium moisture, well-drained soils in full sun to part shade. Tolerates a wide range of soils, including poor soils and even a strong shade. Salt and drought tolerant.
- Deer and rabbit resistant
- Great for beds and borders, city gardens, coastal gardens, gravel gardens or Mediterranean gardens. Excellent as a container plant!
- Virtually disease free. Watch for mealybug
- Propagate by seed sown in spring or by division in spring
- Remove dead or damaged leaves in the spring
- Great Phormium tenax cultivars:
'Duet' – with sword-shaped leaves green in the center, variegated with cream along the margins. 32 in. tall (80 cm). AGM award
'Sundowner' – with erect bronze-green leaves striped towards the margins with red and pink. 5 ft. tall (150 cm). AGM award
'Variegatum' – with erect, strap-shaped, green leaves striped with cream towards the margins. 5 ft. tall (150 cm). AGM award
'Yellow Wave' – with arching, strap-shaped leaves heavily striped with bright gold. Up to 12 ft. tall (3m60). AGM award
Requirements
| Hardiness | 9 – 11 |
|---|---|
| Heat Zones | 2 – 12 |
| Climate Zones | 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2 |
| Plant Type | Perennials |
| Plant Family | Phormium – Flaxes |
| Exposure | Full Sun, Partial Sun |
| Season of Interest | Spring (Early,Mid,Late)Summer (Early,Mid,Late)FallWinter |
| Height | 1' – 12' (30cm – 3.6m) |
| Spread | 1' – 3' (30cm – 90cm) |
| Spacing | 12″ – 36″ (30cm – 90cm) |
| Water Needs | Low, Average |
| Maintenance | Low |
| Soil Type | Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained, Well-Drained |
| Characteristics | Showy, Evergreen |
| Tolerance | Deer, Drought, Rabbit, Salt |
| Attracts | Birds |
| Garden Uses | Beds and Borders, Patio and Containers |
| Garden Styles | City and Courtyard, Coastal Garden, Informal and Cottage, Mediterranean Garden |






