05/29/2026
🥶Cape Cod Gardeners: Please step away from the panic button.
Yes, it's going to be cooler than normal for the next few nights.
No, this is not the Garden Apocalypse.
Most of Cape Cod is expected to stay around 50°F, with some spots dipping into the upper 40s. That's a little chilly for late May, but it's not unusual and it's not a freeze.
Here's the quick version:
🌸 Hydrangeas? Fine.
🌱 Perennials? Fine.
🥬 Lettuce, kale, peas, and other cool-season vegetables? Also fine.
🍅 Tomatoes, peppers, basil, cucumbers, melons, and eggplant? They're the drama queens of the garden. They prefer warm nights and may sulk when temperatures dip into the upper 40s and low 50s.
🪴 Tropical plants and houseplants that have moved outdoors for the summer may need extra attention. If you can bring them inside, do it.
If you're worried about tender plants, cover them with a sheet, light towel, or row cover overnight. Container plants can also be moved into a garage, shed, or protected spot.
The good news? This weather may slow growth a bit, but for most gardens on Cape Cod, it's not a disaster.
Think "light jacket weather" for your basil, not "evacuate immediately."
🌱 Not sure if your plant is pouting, panicking, or perfectly fine? Give it a few days after the cool weather passes. If you notice changes or have questions, connect with the Master Gardener Association of Cape Cod through the Horticulture Clinic at capecod.gov/hortclinic. They're happy to help you figure out what's going on in your garden.