Help with my orange tree! - Knowledgebase Question

portsmouth, nh
Question by rev6
January 17, 2006
I got an orange tree Oct 20th. It's indoors where the temperature is about 60-65 at night and 65-80 during the day.

I'm not sure what to how often to water it... it constantly feels kind of dry and the moss that was so lush on top of the soil is now all dry and kind of with white/grey deposites. I'm not sure if my water is hard and if it is hard, what to do about it. I assume that the moss not growing right would be symptomatic of the tree not doing well.

Since I got the tree has dropped about half of it's oranges (as golfball sized fruit). All the fruit on the tree has scarring on it. The are 2 normal-sized, but still green oranges on the tree. It seems like everyday, it loses between 4 and 12 leaves. I really want to make this tree survive. It should be getting ample light as my upstairs has 6 skylights that give it some light during the day and a sliding glass door for light during the morning.
here are some pictures of the scene...

Could you please give me some hints? Do I need to put a plastic cocoon around it? water it less? water it more? put in a humidifier?
thank you
rev aaron

Answer from NGA
January 17, 2006


It's normal for citrus trees to drop leaves in the winter time, but I think the excessive drop of leaves from your tree indicates some water stress. Indoor air, especially in winter, can be quite dry. It would help your tree if you misted the leaves each morning, or if you placed the container on a gravel-filled tray and kept some water in the tray. Not enough to keep the roots soggy, but enough to evaporate during the day and increase the humidity around your tree. Citrus trees like moist but not soggy soil. You may need to water more frequently than you're doing right now. I'd let the top half-inch of soil dry out and then water thoroughly. Fruit drop can also indicate water stress, but citrus will sometimes develop more flowers than it can support and as a result will drop immature fruit. Also, the fruit may be aborting because it was not pollinated. You can help things along by visiting each open flower with a small artist's brush, effectively transferring pollen from one flower to the next.

Scarring on the rinds indicates the skin was scraped or scratched as it was developing. The scars will get more pronounced as the fruit grows larger. The damage may have occured before you even got the tree, so I wouldn't worry too much about it. The fruit inside should be just fin.

Hope this information helps you help your tree regain its health!

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