a couple newbie gardening questions: My horseradish is going to seed. Should I remove the seed head? Can I plant the seeds? There is a section of garden that has garlic growing like a hay field. It's about 2' tall, and really looks like it needs to be thinned. It's been growing unharvested for probably 5 years. What should I do with it? Should I dig it all up and separate the bulbs? Thanks.