Hey there. Since I haven't grown this type before, I got curious. I found some interesting info in a publication from the University of Florida Cooperative Extension. The following quote is probably what you are looking for and the URL for the complete publication is at the end. Sandy "Waterlilies grow in standing water about 18 inches deep and spread by means of rhizomes. They can be prevented from spreading by planting in a container without drainage holes and submerging the container into the water garden. This helps prevent the plant from invading the entire water garden. Waterlilies should be planted in a container filled with garden soil or potting mix. A shallow and wide container shape is better than a tall, narrow container. The garden soil can be mixed with one-fifth well decomposed cow manure. Incorporate fertilizer at an equivalent rate of about one-quarter cup 10-10-10 per gallon of soil or media to help stimulate growth. Before filling the container, place a small plastic bag filled with sand at the bottom of the container to keep the container from floating in the pond. Plant the rhizome at the edge of the container so it can grow horizontally across the top. Place a 1- or 2-inch layer of sand or gravel over the top of the media after the rhizome is planted in the pot to keep media and soil in the container. Lower the container into 6 inches of water until growth begins. Then it can be set so the bottom is no more than 18 inches below the surface. If the water is too deep, place a brick or concrete block under the container. Do not construct containers from treated lumber since growth could be severely inhibited." Here is a link that might be useful: Directions for dwarf varieties

Hi If you are interested in the daylilies or plants that I have listed under wanted Ed Murray, I would be interested in your day lily list. Trades are not hard really. You wash the fans and let them soak while getting off all the dirt. Weight costs. I send daylilies not partially sandwich bagged up and wrapped in wet paper towels and newspaper like you do other plants like hosta, viola or siberian irises. They need the roots part to stay moist. Make sure all plants are clearly labeled. I send tags when I have spare ones but people can be ingenious in the ways they get marked. Pipe cleaners seperate daylilies, newspaper can seperate them too. Venetian blinds, tapes of different sorts and milk cartons can be converted into tags. Use whatever works and remains light weight for mailing. If you can send an unknown in the package it is fun too. Lots of us include a bonus plant like I might send another daylily not asked for but is not on yout trade list or an extra hosta piece or iris, something I can spare, it is not necessary in trading but it makes it more fun. Sending priority and asking for confirmation on a Monday or Tuesday is the way I send things for if you live near Maine no problem with regular mail, that usually means overnight or a day but if I send to hot areas like Virginia or wait until Friday especailly on a holiday, it gets stuck in the regular mail and could rot or be dead by the time they get the stuff. Most traders will ask if you send priority or not and will decide to do a trade or not based on the condition of the plants when they arrive in the mail. I prefer to send them the things as quickly but as cheaply as can be done meaning at first I bought priority mail boxes but reusing one sent to me in trade or using other boxes is okay as long as labels are changed and company stuff blacked out. The post office will approve or disapprove of the box type when they see it.When you say perishable they will mark the box so for priority mail. Keeping a printed list of emails with regular persons you trade with helps too. I wished I had when my hard drive died last year. Learned the hard way. Most set up the trade and when the addresses are exchanged expect the trade to be sent right away but in some cases things just happen like hot weather fries your plant unexpectedly, waiting for it to recuperate is preferable to it arriving dead, last year a hurricane happened. Exceptions can be made so no risking your life to send out a package like one trader did last year. Take care, Juliannna or Zintal That just about covers it I think.

Thank you!

Wish I were close by.