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Ah, nice comment, thank you. It's a lovely colour isn't it. I have kept it outside, unprotected, in my garden in London UK. If it doesn't root, then I can consider that it might have needed some protection, but for now, it's looking good and the top and bottom portions both have very good growth.

I have hopes, rather than expectations, hehe. I hope that by next August there will be roots. If there aren't, I'll take off the moss ball and see what is happening. I did two other airlayers of different trees at pretty much the same time, and both of those rooted within the same growing season, so if this doesn't take in the second, I will want to have a look to see what is happening.

Ah, lovely to know. I wonder what different people's preferences are, so super interesting to know that you like these ones.

Hello, I use a good quality peat-free compost, and add horticultural grit to it. Because I over-pot my trees, I add grit, to make sure that the water will drain through the soil, rather than remain soggy for large periods of time. In the UK, I think the best quality compost is Melcourt Silvagrow. In the summer, I leave pines in full sun, as they can take it, as long as they are watered regularly. It's difficult to make rules of thumb in horticulture, as everyone's conditions are unique, so the key is to pay attention to your plants, and review how they are doing. Trial and error is one of my key approaches. Don't be afraid to fail. Try it and enjoy the process.

Hello, sorry I didn't reply to you sooner, I haven't got the hang of keeping up with RUclips comments yet. Actually, this video I think is a bit of a false direction, in retrospect. I'm not sure that breaking dormancy is really the issue with Griseum seeds. Hopefully you planted those seeds, or have them in the fridge in some damp sand. My view with griseum seeds is that you simply don't have the embryo in the samara, so no amount of dormancy breaking is going to have an affect, simply because there's nothing to have an affect on. Just an empty shell. I opened a set of seeds that I picked in the Autumn last year and only about 5 out of 100 had an embryo in the samara. It's obvious when you have a samara with an embryo and one without. You see the issue. There is simply a big hole in the samara that doesn't have an embryo, and the one that does has what looks like a little round seed. So I think as an amateur, the best thing to do is simply put a very high volume of seeds in a seed tray, protect from squirrels and leave outside over the winter. That's my current view. A very small amount will germinate, which is to be expected. Professional botanists will process the samaras, and open them to find which ones have embryos and then only plant the embryos themselves. That is extremely difficult, as the samaras are very hard to open without crusing the embryos. One can use locking pliars to open the samaras, that don't fully close, so can crack the samara open, but lock before cracking the embryo. In answer to your question, some of the seeds germinated, but they pushed out in a very strange way, as if they were mutated. But I didn't have enough to form a reliable observation. As of this point in time, I have only managed to germinate griseum seeds by planting in bulk within the samara, straight after collecting, and leaving to stratify outside over the winter. I have a new batch outside this year, of about 300 samaras from different trees in London. I will probably record a video to show the results of that and share my views on the situation. If you are planning on doing research on this, then the botanical name for the missing embryo is referred to as pathenocarpic.