Question
I live in zip code 27869. My question is do I plant pennington grass seeds and fertilizer at the same time, if not how long should I wait before appling one are the other

Answer
Go ahead and plant the Seed.  Fertilizer ONLY if you need to.

Fertilizing Grass when your Soil is complete makes no sense -- unless you hold stock in the Fertilizer company.  And even then, if your Soil DOES come up short, a chemical Fertilizer deposits Salts in your Soil.  That's not good for anyone, including your Grass.

Get your Soil tested.  See if you need to Fertilize.  Most Soil is good to great for growing Grass.  Your North Carolina Dept of Agriculture takes care of Soil testing for you:

www.agr.state.nc.us/agronomi/sthome.htm

Northampton County's 377 farms submitted 9,034 Soil samples for testing this year.  The 1925 Soil Survey of Northampton County, NC, reported your Soil is 'light colored, the surface Soil ranging from Red or Brown to very light Gray or almost White.  Red and Brown Soils prevail in the extreme Western part and light Gray or Yellowish Gray Soils throughout the greater part of the remainder of the County.  The Soils contain a very small amount of Organic Matter, owing to the fact that this area was covered with forest until it was partly cleared for agriculture... In the wooded areas of the County, where there have been no fires, there is a very shallow covering of the leaf mould, and a small quantity of vegetable matter...The Soils in the County are mainly acid.'

The surveyors go on to say that your County Soil also includes certain distinctive qualities not found elsewhere in your state, in contrast to the 'typical' Piedmont plateau and Coastal plain Soils, with a surface as deep as 30 inches of 'Coastal plain material, or light Gray or Yellowish Gray Sandy Clay, overlying Piedmont plateau material, or residual Clay...'

I find this absolutely fascinating, but I'm a little strange.  So I'll spare you the rest and you can look it up yourself if you have trouble sleeping some night:

digital.lib.ecu.edu/historyfiction/viewer.aspx?id=les&p=1

There's also a U.S. Dept of Agriculture color map of your Soil on the internet:

soildatamart.nrcs.usda.gov/Manuscripts/NC131/0/gsm.pdf

God, I love this stuff.

Your zip sits flat in the center of the tan-keyed Craven-Bethora-Lenoir Soil series, described by one Soilmeister as 'poorly drained, slowly permeable Soils...'

So you have your work cut out for you.  You do not need Fertilizer.  You need ORGANIC MATTER.  LOTS of ORGANIC MATTER.  Sow that Seed asap, then cover it with a layer of Humus and composted Manure (which you can pick up by the bag at Home Depot and Lowes for a song).  Get your Soil tested for good measure.  It's the 21st century, my friend.  Find out what's going on down there in your real estate.  Remember, you can't grow great Grass without great Soil!

Any questions?

THE LONG ISLAND GARDENER