Fertilize with a high potash fertilizer once spikes reach 1/2 their height. If fungus is a problem in your area, you may want to treat corms with a fungicide prior to separating them, after digging them out in the fall.1
Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Drama is thought of as tender, so it is imperative to wait until temperatures are mild before planting out of doors. Ensure your soil has a ph of between 5.5 and 7.5 as Drama is a weakly acidic soil - weakly alkaline soil loving plant.gladiolus
1 www.backyardgardener.com/plantname/pda_870e.html