I find this varies a lot from horse to horse.
Neala is trimmed every 5 weeks she grows pretty quick and any longer we end up chipping.
Torin was trimmed with her this week and is booked for the same 5 week slot as her but I don't know yet if this will be right for him or not. He was long in the toe but otherwise farrier was happy with his feet overall.
The hunter at work goes 5 weeks, Jack, Ross and Tilly every 6-7 and Toffee can go 8 he doesn't grow a lot and shoes stay tight.
Neala is trimmed every 5 weeks she grows pretty quick and any longer we end up chipping.
Torin was trimmed with her this week and is booked for the same 5 week slot as her but I don't know yet if this will be right for him or not. He was long in the toe but otherwise farrier was happy with his feet overall.
The hunter at work goes 5 weeks, Jack, Ross and Tilly every 6-7 and Toffee can go 8 he doesn't grow a lot and shoes stay tight.