I have some seedlings of Larix gmelinii var. principis-rupprechtii from Sheffield Seed Co. Collected in China according to them. I tossed a couple out last season for showing sign of root rot in containers, but so far during this very hot, and at times, wet, year, the two I planted in the garden look to be doing very well. The wikipedia article says needles up to 3.5 cm https://en.wikipedia.org/wiki/Larix_gmelinii_var._principis-rupprechtii Conifer.org says up 30mm without distinguishing between varieties https://www.conifers.org/pi/Larix_gmelinii.php Debreczy's Conifers Around The World says, alarmingly, needles only to 2.5 cm for var. principis-rupprechtii, but 3 cm for var. gmelinii. But the needles of the one I fertilized are way, way too long. Easily 6cm for the lammas growth that formed about 3 weeks ago in response to a substantial downpour. Is it normal for the new growth of a seedling to not type out like this?
Yes, when it is dosed up with fertiliser like that. Once they're growing in normal soil and without fertiliser, they'll return to natural length (though possibly not completely, as MD is warmer and moister than their native area).
