Why Geranium Blooms Shrink After the First Flush

If your geraniums' second bloom cycle produces smaller flower clusters, cool, wet weather is often the cause. Geraniums thrive in warm, sunny conditions; prolonged rain and clouds reduce flower size and number.

Wait for warmer, sunnier weather—plants usually recover on their own. In the meantime, apply a balanced granular fertilizer like Espoma Plant-tone, or supplement with a weak liquid feed (¼ tsp Miracle-Gro per gallon) when watering. Avoid high-phosphorus "bloom boosters"; geraniums prefer equal N-P-K ratios.

Ensure pots drain well and don't stay soggy. As temperatures rise, blooms should return to their original size and abundance.