The following is an interesting comparison among various trachycarpus seeds.
Tesan mountain form and cultivated form are the biggest of all varieties followed by Winsan and T.princeps-green (Nova). T.princeps-cultivated ,T.wagnerianus(waggy) and T.fortunei(Chusan) and Nainital have similar sizes.
T.princeps is the smallest one in general.

Among them, T.princeps is the hardest to germinate taking 6 months to 4 years very sporadically. T.princeps-green, Winsan, T.princeps-cultivated seem to be fast germinating ones taking 1-2 months. The rest share a similar germinating time normally 2-3months.

Regarding seedlings,T.princeps-green , Winsan ,and possibly T.princeps-cultivated grow faster with longer and wider leaves 20-30cm and 3-4cm respectively as compared to 15cm long and 2cm wide seen in T.fortunei and split leaflets of these varieties could appear within 1 year whereas others have medium growing speed and put out splits leaves within 2 years.