Hedges are a great choice if you're looking to add some greenery and privacy to your garden. They can also be a great way of changing the shape of your outdoor space and defining areas within your garden. If evergreen is what you're after, then the key is to give your hedges good soil and enough water and fertilizer. 

First, it’s important to choose the right plants for where you live; look for varieties adapted to local weather conditions as these will have the best chance of surviving. 

Second, ensure that you prepare the soil thoroughly before planting or sowing seeds in order to give them a good start. To keep them looking their best over time, provide deep watering once a week or more during dry spells and use an organic fertilizer twice per season. 

Last but not least, prune regularly by cutting off any new laterals from within your hedge, especially towards its base. Following these tips should have you growing beautiful, lush evergreen hedges in no time!