I recently planted a leucospermum. Now some of the leaves are turning yellow on the bottom third of the bush. What would cause this? I have it in a 1/2 wines cask outdoors(bottom knocked out). I've had it on a drip watering system that waters it every 2nd day for 30 minutes. I've now cut the watering back to every 3rd day for 15 minutes. Is this still too much?
Drainage is very important, so you will need to check the soil instead of watering on a schedule.
Yellowing leaves can indicate watering issues, pest and disease.
This article will refresh you on the care requirements.