If it has been a month and they are still green, it probably means that they are still working leaves. I would go ahead and try to support them.
I don't think staking or shoring them up will work however. Instead try using a large tomatoe cage. Cut thru the wire on one side and carefully put the leaves thru the openings them go ahead and push the stakes into the ground. That should give it the support that it needs.
I also would not give it any more fertilizer this season. But however I would give it some bone meal. this will help encorage root growth which will make a healthier
plant. If the
plant was severly damaged it may not bloom anymore this season. but at least you should be able to save your
plant. ( I am not too sure on care in your
zone, so I am giving generic help)
Good Luck
Mike