Calendula getting leggy

Hi I gave my daughter a packet of wild flower seed to put in the front when I removed the daffs. This is our first year of growing flowers so I am pretty clueless.
After some research it seems we have a load of calendula lovely orange and yellow flowers.

They are now getting leggy and am unsure what to do with them as some are so long they are having trouble staying upright.

Mine too are going like that.  I'm too not bothered 

I wouldn't have thought they will get much taller than that.  Keep deadheading and you will get lots of flowers all summer long.  I lve my Calendula, Mine are in a pot about four years old now.

Bit stumped here; I thought Calendula was an annual (albeit a particularly free-seeding one!)

Hopefully sclarke624 will come back and put us in the picture! 

Difficult to say Katherine because its one of those plants that although perennial, it's often treated as an annual.  I am very South so that is one of the reasons mine come up again and also they are near the house in a pot, and again I put all the dead heads back into the pot, so some is maybe new seeds coming up the following year.  Hit and miss with the digging up I have done this and some survive the others wilt.  Not much help to you at all really.

On the other hand they are really very easy to grow from seed, you can even collect the seed from the plants you already have, mine always go mouldy when I have tried this, but it can be done if you can be bothered to do it properly.

So I suppose its up to you to take the risk and if failure then new seeds.   You can my packet says even sow where they are to flower in April.