first the situation: I'm living at the moment in Barcelona/Spain. I am renting a flat that has a lovely small graden in the city. In the Garden there is as well an about 2 meters high lemon tree. i know the landlady who rents me the flat is very fond of the tree and since she's living after me in the flat and garden again I try to be very careful with the garden and especially the Lemon Tree.
My problem: When i got into the flat in march the lemon tree was well up with a lot of fresh, dark-green leaves and a lot of fresh lemons.
Now, mid-july, the lemon-tree looks quite different. He has a lot less leaves and they look much brighter in green. They're a bit brownish, but thats because they're dusty. Still there are new Leaves growing on top but overall the lemon tree heas much less leaves. see pictures..
Of course the lemons from march are gone now, we ate them all, but there are new smalls ones coming. but some (only 3-4) of the very small fell off.
I water the tree every 2-3 Days in the evening and water with really a lot of water.
Now I'm really frightened that Lemon tree is not doing well. The thing i don't know is, i mean it's summer here and we have really high temperetures, everyday between 34-38 degrees, no rain since 4 weeks, if it is just normal that a lemon tree reduces it's leaves count in hot summer time or if i really have to be careful that the tree is not dying. Should i water it every day? should i water more? Should i do sth. else?
here are two pics of beginning of march and now:
any help would be very appreciated.