The soil in NWFP is more fertile and the climate more favourable for Dutch and other irises. The best time to plant these bulbs is around September/October. At this time putting them in a pot would be of no use as they are not going to flower till end february or beginning of March 2014. These bulbs do not require any major effort to grow. One has to keep the weeds out after every 3-4 months.
. The leaves tend to die automatically at the end of April and bulbs start emerging on their own around November. One has to be careful while taking out the weeds as heaving digging should be avoided. Dutch Iris i believe has been overlooked by many thinking that our climate is not favourable. My experience has been the opposite. The picture attached was taken today.