This is the true form of gladioli byzantinus grown for us in the UK. They are happy in shade and sun although in the sunnier areas the flowers will not last quite so long. Ensure that food such as well rooted compost or bone meal is available during the leaf and flower stage for them to produce flowers for the following spring. Can be grown in containers if required but do not use too much multi purpose compost in the pot. Work really well with the shorter alliums and camassia.
Plant 10cm deep in soil that is fertile and well drained. We recommend that you plant in groups of 5 or more to get the best effect. When flower spikes are 15cms tall add a high potash fertiliser such as bone meal.
Aspect: Full sun to semi shade.
Soil type: Fertile well drained soils