I took cuttings from an old Yukka plant and have been growing them quite successfully?

However - they are all now five inches tall and in their own pots, but I would like to know if I have to expose the stem somewhat or if the yukka babies start to do this on their own at some point. Any help would be appreciated,

I took cuttings from an old Yukka plant and have been growing them quite successfully?
The stem consists of the old bases of leaves so the stem appears as the plant grows and the older leaves die off.


The link should help
Reply:as the yukka plant grows the older leaves at the bottom die off exposing the trunk. this is a natural process and doesnt need any help but if you do see any dying leaves that look untidy its ok to trim them back to the trunk with some sharp scissors never just pull them off as it may tear the trunk leaving it open to infection