As fall planting season approaches here in the Northern Hemisphere, here are two simple tips to save you money and hassle:
1. When you plant a tree or shrub, space it to what its size will be in 10 or 20 years, if not more. Time flies, and the next thing you know you'll be cutting some of them down so they don't jam eachother into poor health. This error is commonly made when planting things too near the foundation of a house. Landscapers love to jam things in everywhere because they can sell you more stuff, and it looks better right away. I have made this foolish error enough times to have truly learned it: I am having to cut down a $175 fir today which I had planted, five years ago, too close to a group - because it looked good at first.
2. When you read that a plant needs "full sun," that means direct sun from morning until dusk. It does not mean full sun for part of the day. Furthermore, half-sun means half-day sun - preferably morning light. More sun is not better for a half-sun plant: just ask any Rhododendron or most Hydrangeas.
Oh, almost forgot a third: Never plant Wisteria anywhere, unless you have full-time gardeners to keep your place looking neat and under control. Take it from me. Just don't do it, no matter how delightful it is in May. Pick some other vine for shade unless continual warfare is your plan.