Why are the tips of agapanthus going yellow but the plant is otherwise healthy? It’s in a conservatory

Question

The plant is on the conservatory windowsill, regularly watered & temperature of between 10-15 degrees. A clivia is suffering the same fate but not as greatly. Does the agapanthus need miracle grow?

Answer 1

The tips of this agapanthus turn yellow and then brown due to high temperatures.

Move to a cooler location and add some shade cloth to help prevent this issue.
Make sure you have air flow in your conservatory.