This is a picture of something growing which has sprung up in a pot we planted an olive tree in and we didn't plant it. It grows at a grand rate of knots and what you see has grown in about 2-3 weeks. Anyone know what it is and what I ought to do with it? Will it flower? spread like knot-weed? eat someone? What? Thanks

I should imagine there are a few Gardeners about in the Bear Garden. Well a little story for you. A possible nightmare for me,though i will live through it,i think. Last summer i planted two groups of Lupins,both the same type.About a Metre apart,a small path same distance between them. I have been watching them like a Hawk waiting for their colorful display. Slowly the flower buds have formed,suppose i could call them flower stalks really as when they flower they are large. Well two days ago i came down at Dawn to have a little talk to them,as i do,to tell them how well they were doing and how i am looking forward to their flowers.And put a transistor radio on low to keep them happy.As you do. Classical of course,seems to sooth them.Sure they move in time to the music,but could be my imagination. The next day i came down and they had been invaded by giant Whitefly,can you believe such a thing. Quick Google and it seems this is a difficult one to deal with.Believe originally they arrived from America. As many things seem to.Some good,some bad,same as everything,and everywhere,good points and bad points. Well what a shock i had i tell you,i nearly fell over and had to be revived by many cups of Coffee and tender loving care. And a smell of smelling salts applied on a cloth.A little roughly by she who must be obeyed. I think for a moment wifey perhaps thought it was Chloroform.I wonder many things sometimes with the looks i get. When i was fit enough to look at things again,i noticed over the next two days the Lupins only a Metre away were showing no signs at all from Whitefly which you must admit is strange.Not one of the blighters. The only difference i can see is that i have Two Foxgloves at either side of the Lupins keeping guard. And one Lavender plant. Do you think the smell perhaps of the Foxgloves or Lavender emit could be keeping the Giant Whitefly at bay. Now i used Washing up liquid diluted a while ago but believe it can contain salt and is oily. Although perhaps it can kill the Whitefly,but am not sure of that,i do not want to block the pores of the plants. Stop them breathing .Can you imagine if that happened.Slowly suffocating as i look on,the thought fills me with horror. Now who has the answer to my problem. Thanks. Tawnyowl.