BloomSignal

1

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One-click sign-in, no password to remember.

2

Enter your ZIP code

We use it to pull hyper-local weather and frost data.

3

Choose your signals

Get emailed when weather conditions match.

Cool-Season Direct Sowing

Soil has reached 45°F with no heavy snow forecast — ideal time to direct sow peas, carrots, and greens.

Transplanting Warm-Season Crops

Last frost has passed and soil is at 65°F — safe to transplant tomatoes, peppers, and squash.

Indoor Seed Starting

About 8 weeks from last spring frost — time to start selected crops indoors.

The Fall Bulb Window

Soil is below 55°F and first freeze is about 6 weeks away — ideal timing for fall bulb planting.

Summer Bulb Planting

At least 2 weeks past spring frost with soil above 60°F — safe to plant summer bulbs.

Fall Garlic Planting

First light frost has passed and deep freeze is not imminent — strong window to plant garlic.

Late Tulip Planting Window

Forecast shows 4+ consecutive days with overnight lows at or above 30°F — ground is workable for late tulip bulbs.

Heavy Rain Delay

More than 1 inch of rain forecast in the next 48 hours — hold off on outdoor work and planting.

Unexpected Hard Freeze Alert

Temperature expected to drop below 32°F after a recent warm spell — cover or bring in tender plants.

Heatwave Bolting Alert

Three or more consecutive days forecast above 80°F — cool-season crops may bolt.

High Wind / Low Humidity Warning

Dry, windy conditions forecast in the next 48 hours — delay transplanting to avoid stress.

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• ZIP-code weather

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$19.99/year

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• All 11 signals
• Email alerts
• ZIP-code weather