Wait until the spring, summer or fall, and look at the area where you want to plant the hedge. Ensure that the soil drains well and the area receives full sunlight exposure, which is required for hibiscus to thrive.
Set the hibiscus nursery pots on the ground, spacing them 2 to 3 feet apart along the entire area where you want the hedge.
Dig a hole at the location of each pot, making it the same depth as the pot and wider by at least two to three times the size of the pot. As you dig the holes, place all the soil into wheelbarrow.
Add compost to the wheel barrow, using the same amount of compost as there is soil. Mix the two well with a shovel to amend the soil.
Remove each hibiscus plant from the pots and insert the roots into the center of the holes. Place soil from the wheelbarrow along the sides of each hole, filling them in until they are half full.
Water the soil along the length of the hedge to settle it and remove air pockets.
Add the remaining soil to each hole, and then water a second time to settle the new soil into the ground.
Water the hibiscus hedge with 1 inch of water per week, if no precipitation occurs.
Fertilize the hedge at least one per month with a balanced 10-10-10 fertilizer to promote growth. Refer to the fertilizer manufacturer for the amount of product, which is based on the total length of the hedge.
Wait until March and begin pruning the sides and top of the hedge by 1 to 2 inches with pruning shears. Trim all hibiscus plants back to the same size and begin blending them into a single specimen.