You do not need acres to grow cut flowers. A few containers on a sunny patio or a single 4x8 raised bed can supply enough blooms for a weekly bouquet from spring through fall.
Large pots (minimum 5 gallons) work for zinnias, cosmos, snapdragons, marigolds, and many herbs-as-foliage like basil and mint. Use quality potting mix and water daily in summer. Containers dry out faster than ground beds, so consistent moisture is the challenge.
In a 4x8 bed, divide the space by season. Plant one half with cool-season flowers (sweet peas, snapdragons) that get pulled when they fade and replaced with warm-season flowers (zinnias, celosia). The other half holds longer-season crops like dahlias or succession-planted sunflowers. See raised bed growing tips.
In small spaces, grow flowers that give the best return per square foot. Zinnias and cosmos are the best producers. Dahlias take more space but deliver for months. Skip flowers that produce only one bloom per plant (like single-stem sunflowers) and favor branching types. See the first-year plan for a compact starter list.