Protea plants thrive in acidic, nutrient-poor soil. Avoid fertilizer; an abundance of phosphorus, in particular, will kill them. If you have a dry, acidic, rocky part of your garden that can't seem to support life, you may find protea plant care fairly easy.

What is the best fertilizer for proteas?

So, to grow Proteaceae plants, always use a low phosphorus fertiliser. Both the proteas and waratahs make sensational cut flowers. They'll last a good two to three weeks in a vase.

What should I feed my protea?

Mulch with an organic mulch, such as bark chips, sugar cane or pea straw ensuring to keep it away from the trunk. Feed in autumn and spring with Yates Dynamic Lifter Soil Improver & Plant Fertiliser to ensure strong root development.