from my own experience.
I planted my acorns shortly after they had fallen from the tree and followed the instructions below.
1, Make sure the acorn is clean and dry.
2, Prepare container, we used 75mm (3”) deep
Find suitable place to plant outside.
3, Fill pot with peat free compost, make a hollow
with your finger
Dig a small hole in the ground about 25mm (1”) deep, Jay!
Please use peat free compost; peat bogs are a finite natural resource and a unique ecological environment. Do not help to destroy them.
4, Put the acorn in pot or hole on its side.
5, Cover with compost or soil, press down lightly.
6, Water & label.
7, If in a pot, place in a semi-bright place (i.e. near windowsill).
8, Do not let dry out (but don’t over water!).
9, They may grow before winter but it is unlikely that they will produce any leaves until spring.
10, Transplant into a larger pot or wherever, when too big for existing.
11, If planted outside protect from extreme weather and small animals.
We recommend planting in pots and keeping inside/under
glass until saplings to ensure that
1, you know where they are and
2, animals such as squirrels and more especially Jays not eat them while your back is turned.
So, Good Luck, enjoy and let us know how you get on by contacting me