why are my meyer lemon leaves drooping and falling off?
i have small meyer lemon, about 1 foot and a half tall. i got it at a garden show. right now it is in kindof a harder soil with bark on top. it bloomed and seemed happy for about a month, then the leaves started to drooped and get yellowish and now they are falling off! the blooms have faded, no fruit. i water it about every 3-4 weeks. it is on my windowsil 24/7 and it wonder it it is too cold? i read soewhere to use a heat mat? i have one. what about fertilizer? i have never fed it before, i didnt realize it needed some.
-what soil should it have?
-what fertilizer should i use
-should i use a heat mat? nowhere in my house gets much light besides my windowsil(should i use a grow light?)
-why would it be drooping?