Why this matters
Some crops like cool weather. Others need real warmth. Planting warm crops too early is the fastest way to get weak plants (or no plants).
What to do
Know this simple rule
Cool-weather crops handle chilly nights better.
Warm-weather crops want steady warmth and struggle in cold.
Step 1 — Find your local last frost date
Open Google.
Search: “last frost date + your ZIP code”
Write the date down. This is your planting “traffic light.”
(Containers follow the same rule.)
Step 2 — Use that date to choose what to plant FIRST vs LATER
Before your local last frost date: focus on cool-weather crops.
After your local last frost date: move into warm-weather crops.
Plant First (Cool-Weather Crops)
Arugula
Lettuce (Buttercrunch, Cimarron Red)
Spinach
Kale
Swiss chard
Bok choy
Radish (Cherry Belle)
Peas
Onion (Tokyo Long)
Plant After Frost (Warm-Weather Crops)
Bush green beans
Cucumbers (Slicing, Pickling)
Zucchini
Yellow summer squash
Butternut squash
Sugar pie pumpkin
Tomatoes (Large Cherry, Roma)
Peppers (Bell, Jalapeño)
Basil
Sunflower
If you’re unsure, do this
Start with one cool-weather crop first for confidence.
You’ll learn how your watering and sun setup behaves.
Mini decision rule
If nights are still cold, start cool crops.
Wait on warm crops until after your local last frost date.
Common Mistakes
- Planting tomatoes, peppers, cucumbers, or squash before your local last frost date.
- Planting everything at once and not knowing what worked.
- Forgetting to save your local last frost date for later.
Quick Tips
- Cool crops are great for learning because they forgive small mistakes.
- Label “cool” and “warm” on your seed packets with a marker.
- If a warm crop struggles early, it’s usually timing — not you.
- You can often plant cool crops again later for a second round.
Mini Checklist
- I Googled “last frost date + my ZIP code” and saved the date
- I picked at least one cool-weather crop to plant first
- I chose warm-weather crops to save for after my local last frost date
- I labeled what I planted and when
- I feel clear on “cool first, warm later”