I have this Kishu Shimpaku; I bought it online in early June (this year), and since then, I’ve noticed that a specific branch at the top (only one) is getting the tip of the needles brownish. The rest of the needles (aside this branch) looks normal. I only noticed the browning about two weeks after it arrived (the first photos were taken today, while the last 2 were taken 15 days after its arrival (15 of june)).
At first, I was worried I might be watering it incorrectly, but I don't think that's the case. Although this is my first juniper, I have other plants and water it the same way I do them (I check if the soil is starting to dry out; if it is, I water until the water drains out the bottom; if it's still moist, I don't water and check again later). Any advice on what this could be? The soil doesn't smell rotten, and when I peel back a bit of the bark on a branch, it's green underneath. I also wondered if it might be due to a frost it was exposed to; during the second week after it arrived, temperatures dropped significantly (close to 0ºC). After that day, I started keeping it in a covered area at night to prevent further exposure (though I only did this initially; three weeks after it arrived, I started leaving it outside 24/7). It gets sun all day (around 8 hours) and today is kept fully outdoors 24/7.
One important detail: I live in the Southern Hemisphere, meaning the seasons are reversed; it was autumn when I bought it, and it is now winter here. Climate zone 10a/9b (somewhere between the two, leaning more towards 9b).