3 x Tithonia Mexican Sunflower (Morden SM4)

Here we have 3 gorgeous Mexican Sunflowers. Tithonia. They grow to approx 4-5 feet and need full sun or they will sulk and not grow well. They prefer free draining soil. The picture en mass are ones grown in my garden last year. They last only one year and are annuals.
I would personally pot them on to a larger pot not too big just a bit larger and let them grow a bit bigger before planting.