Shirlee - The first thing to consider when growing in pots is your soil mix, the next thing to consider is making sure you have enough drainage in your pots, and your pot bottoms make contact with the soil.
Good soil mix will allow for longer plant life, and the proper fertilizer will allow your plants to be at their peak when bloom season starts, allowing for good pod set.
Moving pots will allow you to hybridize with the later season blooming daylilies. {example} you could move a couple pots indoors where it is cool and set a pod and then return the pot outdoors after the pod is well established.
Pots will dry out faster so they need more attention than plants direct planted in the soil, this will require a longer lasting slow release fertilizer - I use Nutricote 18-6-8 with minors.
This is a 1-gallon seedling from last season still in the pot --
These are pots that have been added and the soil is to the top, some of the other daylilies will be removed and more soil add-- [important] don't let the crown sink too low in the soil or you will have a problem with blooms, and risk crown rot.
This daylily has droped about 3" , and will need soil added.
I will line-out around 200 daylilies and by spring reduce that number for making crosses
I put my better crosses in 1 gallons when space allows, it is easer to control their grow..
2013 kids
2012 hybridizing area..
2011 hybridizing area