As substrate I used COCOHUM. This is made of the fibers of the fruit of the coconut. It is sterile and does have similar qualities as peat. You might use peat too.
The tray with the pots and seeds stayed on a heater in my kitchen on a south sided window. Temperature was about 12 C at night and 15 C at day. Only about 50% of all seeds developed into young seedlings.
Why? Temperature has never to climb over 15 C, as higher degrees may inhibit germination. Maybe the south sided window and the sun did allow to arouse temperature over this point. Maybe - as has been in former years - the seeds and the seed seller did not store the seeds as they should have been.
In May it looks like this...
I let them grow in a half shaded place. I offer them as much air and water as possible. I water them whenever the soil is becoming dry but never let it dry out totally.
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