Did you hear about the horticulture student who was taking an exam on tree identification?

The first question had him stumped.

It’s time for one of our own fun gardening exams. When teachers described tests as great learning experiences, I rarely shared their enthusiasm, but I hope you’ll enjoy today’s quiz.

1. Will recent cultivars of petunias, such as the Vista and Wave series, continue blooming best if they are deadheaded by removing flowers as they fade?

2. Does mowing a lawn short encourage it to fill in and become thicker?

3. When trimming a formal hedge, is it better to keep the base wider than the top?

4. When you deadhead roses to encourage repeat bloom, is it best to cut right below the dead blossom?

5. Will some perennials re-bloom if you shear off the old flowers as they

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