Meyer Lemon Problems

[Kali]

2. I have potted citrus at 4500 feet in south east AZ

mine do well, other than cottony cushion scale that is drives me crazy. I used to bring them in the house but they got too big so they usually go in a tent green house or just wrapped during real cold weather. had a heater one year but I am frequently late doing winter chores and they often get frosted a time or two. I just use regular miracle grow less than once a month (lazy and don't do it by instructions). they are usually back out in the yard by flowering time so bees can get to them. they got kind of drouthed out this summer but have come back somewhat. saw a couple key limes on one but the grapefruit didn't make it. my third is regrowth from a regular lime on some kind of thorny rootstock, it has never bloomed. maybe this winter. LOL