[Goosegirl]

The little greenhouse in my new home has this plant growing in one of the beds and I don't know what is it. It started out as a single stem but now has several shoots growing from the top. Anyone got any clues?

[Kleftiwallah]

Good morning Goosegirl,
I'll start off with A is for Apple,  anyone next with a B?

Cheers,   Tony

[mrs bouquet]

Well it is definitely not a banana, thats for sure.    C next.    Mrs Bouquet

[Goosegirl]

Ha Ha! It's definitely NOT a carrot! 

[jaydig]

Can I go back to 'A' with abutilon?

[mrs bouquet]

That would make sense, because if it is in the greenhouse, it perhaps is a plant that needs tender care.  Mrs B

[New shoot]

The leaves don't look right for abutilon.  Its common name is flowering maple and the leaves are maple leaf shape.

Is it possible to get a close-up picture of the leaves?  Do they feel like a deciduous plant leaf or more sturdy, like an evergreen?

[jambop]

Question that comes into my head is ...was it planted deliberately? If not could it be a rogue willow seedling ?

[greenjay]

That's what i thought jambop.

[Goosegirl]

I think the previous owner just grew tomatoes etc so don't think it's anything that was deliberately planted in there. The leaves are not looking willow-like, the end of the new growth looks similar to a sycamore but it's definitely not that either. Here's the close-up you requested.

[8doubles]

One of the plum family.

[Aunt Sally]

I’d go with ‘W’... wait and see what it does next year. 

[mumofstig]

I'd go for W but for weed tree seedling 
Get it out while you still can - before the roots get too invasive.

[jaydig]

Now I've seen the leaves in close-up, I agree, it's definitely not an abutilon, but I really can't say what it is.

[Goosegirl]

I think I'll just pot it up and see what happens next year - thanks.