safely, they can have 2 clutches a year, but i would make sure you learn to handfeed first just in case they dont care for the babies properly again (you will have to raise it)
they can lay eggs almost right after, but ideally, i would let her rest for a few months, let her get in really good shape, and you can spend the time doing a lot of research on handfeeding babies, how to deal with nest emergencies, etc. this way she can prepare health wise and you can prepare too
ideally a laying hen should have a very healthy diet, full spectrum lighting (to help with calcium and vitamin D3 absorbtion), and be illness free. she should be perfect weight (not overweight and not underweight!)
the male needs to be in good shape as well because he will be the one feeding the female and helping to raise the babies.
a good diet consists of seeds, pellets, and veggies, and as much variety as you can give them. soft foods are great for feeding the babies.
if they aren't eating as much variety of veggies as you would like, take the time to try to get them on a good diet. proper nutrition is especially important for the babies and the parents will be feeding them.
you should have cuttlebone available for the hen at all times during laying, and a diet with calcium rich veggies is a must when she is laying eggs
good luck!
