Luka ,I'm most grateful for information provided!
May I ask a few nore questions. When I tried to use this site's dbase for lilies most of those available here have very scanty information. Is there a site where one can access to detailed information for lilies, like there is for roses, clematis, peonies (HMF) or irises ( the AIS dbase) ?
I'm not deterred to try sowing Lilium seeds, however tricky they may be. I'm accustomed to stratification procedures for some of my rock garden plants or desert Penstemons from the USA. I'm familiar with the moist baggie procedure as well as the use of GA3 to induce germination. These are my available Lilium seeds that have been kept in lower part of my refridgerator:
Lilium bulbiferum ssp croceum
Lilium martagon hybrids 'Painted Ladies'
From the Scottish rock garden clun seedex 71 ( 2018)
Lilium martagon crem
Lilium martagon Bronze medallion
Lilium callosum yellow
Lilium Ryiube group red-purples
Lilium regale ( this one I will sow without any doubt) !
The questions are: all need cold stratification? For how long? when best to start the sowing procedures?
My interests in Lilies is no different from that of Irises, Daylilies or roses. I'm interested both in horticultural forms as well as the original species. With roses , Im quite organized with my first breedong trials. The same goes with my tall bearded irises. I'm widening the scope of irises into the wet/bog types ( like I.ensata, I.sibirica and now the LA irises for which I can get named cultivars),
I haven't found a single place that offers any martagon liliums. Most of the list are asiatics, but I prefer fragrant lilies if possible, so I will choose orientals as a first choice. This is where a comprehensive dbase becomes very useful.
My soil conditions seem ideal: almost pure sand. No drainage issues. A lot of compost/manure available from the farm. I can choose neutral ph or alkaline ( chicken) well seasoned manure. I read martagons prefer slightly alkaline. My natural soil is near ph6 ( acid).
The climate is mild. Rarely does the soil freeze in winter. Maximum the upper 5 cm. But lily bulbs are placed much lower. The asiatic yellow noids have been in place for already 15 years and bloom for me unmolested each summer. Those were given to me, and the provenance nursery has since closed.
Summers are cool . The highs these days barely reach 30ºC. They are also very dry (mediterranean type of climate like yours in Croatia)...(btw there's a sizeable croatian community in this town...even my next door neighbor is from a Croatian family. Equally frequent are the Slovenes here).
So my real obstacle is getting the seeds to germinate and grow bulbs. I don't imagine martagons to come into commercial offering because I haven't seen any at a florists shop.