I planted some Nasturtium in my garden about 3 or 4 weeks ago. They are in a clay soil that is ok to drain. I was watering them 2 times a week because they are in the full Connecticut sun all day. They were not growing and started looking a little brown. I haven't watered them in about 1 1/2 weeks and they continue to decline except for the flower buds that have suddenly appeared.
I would love to see them grow into big long Vines but i am not sure how to continue caring for them. Any Advice? See pictures.