06/10/2026
If your tomatoes are dropping flowers right now — it's not your fault.
Blossom drop happens when daytime temperatures push above 90 degrees. The pollen becomes non-viable. The plant drops the flower rather than attempting pollination it can't complete.
This is climate, not error. And it happens every summer in the Sierra Foothills to even the most carefully tended gardens.
What helps:
→ Deep consistent watering — check two inches down, not the surface
→ Mulch around the root zone
→ Shade cloth during peak afternoon heat
→ Keep companion flowers blooming for pollinators
What doesn't help: fertilizing. High nitrogen during a heat event makes blossom drop worse. Wait until temperatures moderate.
The plant is not lost. It's waiting.
More at this blog post. https://bit.ly/49Sa4VE