Posted: 15/07/2016 at 20:41
similar to Fairygirl but use a john innes compost if growing in pots. Although they do require very little maintenance and are reputed to like dry comditions phormiums still need extra watering now and then to look good.
phormiums when old look tatty. They will grow large too if left undivided. To keep their leaves colourful divide every 3 years. Also remove the oldest foliage in spring with secateurs or, better still with sharp scissors. A feed in spring is sufficient. no need to water over winter. snails love to hide in and eat phormium foliage so watch out for them.