Salut, Alain!
I'm growing some A. Monspessulanum from seeds I collected in 2015 on the plateau north of Cahors, some 50 km from Brive.
I sowed them in 2016; it is their second year of growth.
First year in small pots ( 4 ") and 2017 in the ground (basically pumice, 20 % peat, 10 % sand). They...