Late fall planting can sometimes be tricky depending on what is being planted, how late in the fall it’s installed, how much moisture is in the ground, how warm or cold the temperatures are, etc. So it makes sense to avoid the ‘dig, plant and run’ strategy and favor doing it right. That means fertilizing at planting time with products that will encourage speedy root establishment and take up vital nutrients. Also make sure proper watering is done throughout the rest of the season until the ground is frozen.
Roots with Mycchorizae is one product that provides what you need as a balanced fertilizer and that is focused on plant establishment. Add it to the soil when backfilling, water in well and top dress with mulch.