A new tree

For ages I have noticed a 'weed' growing in with the cacti on the kitchen windowsill but have never got round to pulling it out. As I was bringing my lemon and orange trees back inside this weekend I realised that the 'weed' is a little orange tree where some lazy person has just tipped their orange pips onto the soil rather than in the bin!
It is about 2 inches tall with at least 10 leaves and when I repotted it today it has a vey healthy, deep root system!

 

I suppose you could look on it as a bonus plant, seed grown citrus are not as good as grafted named varieties but it's another for your collection.