Try to copy their original birthplace,..Mine do not see full sun, except for a certain time, when the sun breaches the corner of the house,[which is when they are normally flowering],..,they get heaps of warmth, radiated from the tin shield in front of them [facing north],..,Their pots cannot get hot.,- i grow Duchartreii-Majoense- Nepalense and Cardiocrinum Giganteum[plus a couple of others] in somewhat the same conditions,.,.If you have a chance, open your ear to somebody old in your area, that has grown these liliums, for a while,..,And after all this, please dont think im a knowledgable person, because, i lose a few bulbs from time to time
