Hello Janos, Gardening in Hungary probably means very hot and dry summers. I saw L. pardalinum in California but even there it grew in cool moist and shaded conditions. Maybe you killed your first 10 bulbs because they became too hot in summer? I also planted my first 10 (expensive) bulbs this year on the northern side of a garden building between low shrubs and ferns, protected from mice and voles and keep my fingers crossed.... no growth visible as yet but the rhizomatous bulbs were sprouting and looked very good when I planted them. My garden is in Zone 6 or 7 in northern Germany but we can also get quite warm and dry summers. I have seen this lily most spectacular in English gardens..... but again, England is milder and moister. Bye for today