I planted a long narrow plot last fall with a clover mix. For some reason it never really sprouted last year. Well somewhat to my surprise I went and checked the plot last week and it's the best stand of clover I've ever seen. It's about a foot tall and really thick. Normally I just replant all of my clover in the fall but I've never had a stand like this. What do I need to do or not do to maintain it all summer and keep it looking great for the fall?