Create a courtyard herb garden dedicated to growing medicinal herbs with healing properties. Plant herbs like echinacea, calendula, chamomile, and lavender. Use themed markers and labels to identify each herb. Echinacea is known for boosting the immune system, while calendula has anti-inflammatory properties. Chamomile is calming and aids in relaxation, and lavender is often used for stress relief. With themed markers and labels, your courtyard herb garden will not only be visually appealing but also beneficial for your health.