Potted my Schefflera

I felt like my Schefflera cutting was ready for a pot. It's a 4 inch pot and I used a 50/50 mix of perlite and peat moss. I noticed the soil wasn't holding any moisture and read that peat moss becomes hydrophobic when dry. It's sitting in a cup bottom watering until the soil starts to absorb water. Do you think it will continue to grow? It doubled in size during the 2 weeks since I cut it and it rooted.