Greenhouse people say the plants that sell best are the plants that are already blooming. It makes sense: they're pretty, and so appealing early in the season, when gardeners are yearning for some color. And, when you see a bloom, you know what you're getting. Pink cosmos or white? Orange or yellow marigolds? But Cooperative Extension's Amy Ivy says there are risks in buying plants that are that far along in their growth cycle. She shares tips on what to look for, and how to mitigate some common downsides. [full story]