Hello Everyone,

My lemon tree does not appear to be doing too well this winter. Plenty of leaves are turning yellow and some appear to be burned.

Break down:

• Well Draining soil (was re-potted 4 months ago)
• South facing window
• Temperature roughly 18C/65F during day but drops to about 14°C/58F in the evening (I have a space heater close by to keep temperature up)
• Fruit does not appear to be damaged in anyway
• Lots of new leaf growth over the past month (new leaves don't seem to be affected)
• I recently has a fungus gnat issue which has now been resolved. I used Mosquito dunk treated water to kill off Larvae. The package did state it wouldn't affect plants or trees.
• Only water about once a week once soil has dried up on the top 2-3 inches.
• Has not been fertilized since mid/end of summer
• Tree has not been moved, it has been in the same spot for 2 years

I have posted photos below:

Any help of advice would be greatly appreciated.

Cheers!

PS Happy New Year!