In case you haven’t seen this method of starting sweet potato slips:

You can also start with slips, then take further cuttings from those slips to expand your beds.

I should have some already started sweet potato slips at Plantapalooza this Saturday.

Including from these giant white ones:

It’s time to get planting. You can plant sweet potatoes all the way up until about June 1st in zones 8/9, but I wouldn’t go later than that.