Thank you for asking a courteous question. I hate smart ass replies when all they want to do is cause problems or argue.. If you think I'm a hack start your own thread. That's what I did.
My growing season is long....BUT, that is a big But. It may be long but it is short in actual growing time. While it may be 9 months long I don't get the whole thing. My plants go into Summer-winter. They are not growing right now. They are dormant. Dormant from the heat. I may get a few shoots on a maple pop a couple buds right now, but for the most part June July and August are nothing months to me. I get about March April and May to hedge well. Then rest time for three months and then I get a spring push again around Sept 5th. That lasts until about Nov. 15th. Then Fall starts to set in. My winter is Dec, Jan, Feb. I start repotting end of Jan. and buds are popping middle of Feb.
For fertilizer, I inject the nine growing months. Even in winter. I don't fertilize June July or August. Just too hot here. I use Grow More 100% cold water soluble fertilizer with all trace minerals. The best commercial fertilizer on the market. Used by virtually every golf course and most growers in California on injector watering systems, which most are now. Even stone fruits and nut crops are water injected with fertiliser here.
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I use a hose end injector like this at 17/1 dilution. I siphon the dilute fertilizer out of a five gallon bucket I mix about every 5 days.
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Driving around the San Joaquin Valley one will see almost every ranch with an injector system like this near a road for service.
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