Suståne 18-1-8 with Iron is a two-part blend combining Suståne organic with urea nitrogen for enhanced and long-lasting color. The most economical coverage of any organic-based fertilizer. 12 – 16 week release rates.
Suståne 18-1-8 with Iron is the ideal fertilizer for use on golf course fairways and roughs, lawns, and sports fields. Suståne 18-1-8 with Iron is also an excellent fertilizer for all landscape areas as well as container topdressing.