I get very few flowers per cluster of beautiful foliage. I admit I cut them and bring them in as soon as they come out, as they're my favorite and so long lasting. However, I'm getting less and less every year. I don't cut the stems until they've browned. I get a few flowers every year so just figured since the plant foliage was so healthy the bulb was healthy. Is it time to dig them up? I've planted new ones since and still only few and far between flowers. My neighbor down the road has huge bouquets of beautiful flowers each year and I'm thankful for one skinny beautiful bloom, so sad. Please help. Thank you.