12 Plants That Have Really Big Flowers

A clean botanical diagram comparing a 10-to-12 inch dahlia to a dinnerplate, showing soil planting depth and staking.
See how a massive dahlia bloom compares to a dinnerplate in this helpful planting guide.

Tip #1: Dinnerplate Dahlias

Dinnerplate dahlias deliver exactly what their name promises; these spectacular plants produce massive, fully double flowers that easily measure ten to twelve inches across. Adding these blooming behemoths to your landscape guarantees an unforgettable late-summer display precisely when other garden plants begin to fade under the August sun. Cultivating prized varieties like ‘Emory Paul’ or the soft blush ‘Café au Lait’ requires planting the tuberous roots in well-draining soil after the last spring frost has completely passed. Because these ornamental flowers grow so large and physically heavy, you must provide sturdy wooden stakes or metal structural supports early in the season to prevent the hollow plant stems from snapping in strong winds. Feed your dahlias a low-nitrogen fertilizer—such as a 5-10-10 blend—once buds appear to encourage robust bloom development rather than excessive foliage growth. When you master these straightforward steps, your garden will burst with monumental color until the first autumn frost.

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