Decide what success means
Before choosing seed packets, finish this sentence: ‘These flowers are here to…’. You might want a particular flowering period, a container display or material for small arrangements. Different objectives lead to different choices. A flower described as excellent in a trial has still been tested in a particular place, under particular conditions.
Read regional results carefully
University trials can help you narrow a list, especially when their climate resembles yours. Look for the location, year, evaluation method and conditions rather than borrowing a ranking without context. A trial is evidence to interpret, not a promise that a cultivar will behave the same way on your balcony. Check local suitability and the plant's requirements before buying.
Start with a small trial of your own
Choose a limited number of varieties and give them a fair, clearly recorded position. Keep the label and note sowing or planting dates you actually know. Use a simple rating for the qualities that matter to your objective: flowering window, maintenance and whether you would choose it again. Avoid changing the criteria halfway through just because one plant is photogenic.
Save the lesson, not just the favorite
At the end of the season, write one sentence for each variety: what job it did, what it needed and what you would change. Photograph the full planting as well as close-ups. The record should help you build a more coherent next season, rather than become another long shopping list.
University of Minnesota: annual flower research ↗
This article combines general educational guidance with original planning exercises. It does not claim first-hand field testing or an endorsement from the linked organization. Sources checked October 2026.
