I think I am going to try and stay close to 300. I am now on the backside of my fifties and my joints keep reminding me I am not in my 20s or 30s anymore. I worked/weeded etc yesterday 3 1/2 hrs and I can sure tell it! Believe me I WANT them all. I also collect some hosta and iris. I just had rather have a smaller well kept garden than one that is not well maintained. Sticking to that plan is difficult.