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Phormium cookianum 'Emerald Gem' (Dwarf Green New Zealand Flax) - New Zealand Flax dwarf cultivar that was supposed to grow to only to 2 feet tall with narrow upright bright green foliage and a reliable late spring flowering. The flowers, typical of P. cookianum are yellow but rise more vertically to exert themselves from the foliage mass.
Plant in full sun to shade. It can tolerate fairly dry conditions (coastal) but looks best with occasional to regular irrigation. This cultivar is particularly noted as being tolerant of waterlogged conditions. Hardy to 15-20 F. Possibly root hardy below these temperatures but can suffer severe foliage damage unless protected. A great small hedge or edging for a border planting.
We first spotted Phormium cookianum 'Emerald Gem' growing as median plant in Auckland, New Zealand. An entire section of the road was devoted to this decorative plant when we saw it they were all in full bloom in their late spring. We grew this plant form 2001 until 2003 but found that it regularly reverted to the full-size large form of the species, so we discontinued growing it. For more information on the species see our listing for Phormium cookianum.
The information displayed on this page about Phormium cookianum 'Emerald Gem' is based on the research we have conducted about it in our nursery library as well as from information provided by reliable online resources. We also include our own observations made about this plant as it grows in the nursery gardens and other gardens visited, as well how the crops of this plant have performed in the containers in our nursery field. We will also incorporate comments that we have received from others and welcome hearing from anyone with information about this plant, particularly if it includes cultural information that will aid others to better grow it.
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