Hamish likes
A sunny spot
He’ll thrive somewhere bright that gets sun for much of the day. He won’t do well in shade. Just make sure he is sheltered from harsh winds.
Moist soil
He prefers his soil to be kept lightly moist but he’ll cope if it dries out a bit.
Feeding
He should produce long, fluffy flowers from June to September. Prolong their life with a weekly feed.