I have a question about a couple of BLCs. I got these plants as seedlings about 3 years ago. This year they have sent out bloom sheaths. Now, I read some where that you should clip the tip of the sheath off so that moisture wouldn't get inside and rot the blooms. Is this true? They are vacationing outside all summer and they get rained on as well as water from the hose. Thanks for any information on this.