Hazelnut trees are different to most fruiting trees -- they bloom in the middle of winter and the wind cross-pollinates the trees. The hazelnut tree in most of Europe grows as a bush or multi-stemmed tree, but hazelnut trees in some parts of the world grow as a single trunk. You will need to plant at least two hazelnut trees if you want the tree to bear fruit.
Find a place to plant your hazelnut trees. They need to grow in a place that gives them protection from the wind. Test the soil for the pH balance as hazelnuts like a pH level between 6 and 7. Make sure there are hazelnut trees growing within 15 metres (50 feet) or less for cross-pollination.
Dig a hole that is double the width of the container or root ball of your hazelnut tree. Make the hole 7.5 cm (3 inches) deeper than the root ball.
Fill the hole with water. Allow the water to drain away into the soil.
Mix equal parts of soil and compost together. Hazelnut trees are shallow-rooted and by adding the extra compost you will ensure that the tree receives enough moisture. It will also help with drainage.
Fill the bottom of the hole you dug with the amended soil. Put in as much soil as needed so that when you put the hazelnut tree in, the root ball will be 1.25 cm (1/2 inch) above the ground level. Don’t worry that the root ball sticks out of the ground, because it will settle and become ground level.
Plant the tree in the hole and refill in the hole until it is half full. Tamp the soil down to remove any air pockets. Finish filling the hole with soil and tamp the ground again.
Add a 10 cm (4 inch) layer of mulch around the tree. This will repel weeds and help the soil retain moisture.
Water the hazelnut thoroughly. Water once or twice a week so that the hazelnut tree will become established.
Check the hazelnut trees for disease and bud mites. Theses insects feed inside the bud, destroying shoots and flowers. There are sprays that will help rid the trees of these pests or diseases. Check with your local garden centre for details.