Osteospermum
Early Spring through Fall Finish. Standard PPP.
No pinch necessary. PGRs should not be needed but 5-10 ppm Sumagic is effective if needed.
General pest and disease practices as listed in notes. Can be sensitive to pythium, phytopthera, and botrytis. Maintaining proper pH, (5.8-6.2) and good sanitation practices will help alleviate problems. Increased air circulation, proper water management and good soil porosity are also critical.