Hi, Hazel,
Cut the flower stalk off at the base so the plant doesn't expend any more energy on seed production. Clivia tends to flower when roots are restricted so let it get a little pot-bound (assuming it is in a pot) before repotting. If in a container, do you take it outside in summer? Is it fed regularly in growth? Is it getting adequate light? It should be in bright, filtered or indirect light.
Kathy C
Replied: Monday 24th of January 2011 08:02 PM