What to Plant in May — Zone 1

Start seeds indoors — Counted back from the last frost so transplants are ready on time.

🥬 Lettuce	May 4 – May 18	45–60 days to maturity
🥬 Kale	May 4 – May 18	55–65 days to maturity
🌈 Swiss Chard	May 11 – May 25	50–60 days to maturity
🍃 Collard Greens	May 4 – May 18	60–75 days to maturity
🥬 Cabbage	Apr 20 – May 4	65–85 days to maturity
🥦 Broccoli	Apr 27 – May 11	60–75 days to maturity
🥦 Cauliflower	Apr 27 – May 11	60–80 days to maturity
🥬 Brussels Sprouts	May 4 – May 18	90–110 days to maturity
🍅 Tomatoes	Apr 20 – May 4	60–85 days to maturity
🍏 Tomatillos	Apr 20 – May 4	70–80 days to maturity
🥒 Cucumbers	May 18 – May 25	50–70 days to maturity
🥒 Zucchini	May 18 – May 25	45–60 days to maturity
🎃 Winter Squash	May 18 – May 25	85–110 days to maturity
🎃 Pumpkins	May 18 – May 25	90–110 days to maturity
🍉 Watermelon	May 18 – May 25	75–95 days to maturity
🍈 Cantaloupe	May 18 – May 25	75–90 days to maturity
🌶️ Okra	May 18 – May 25	55–65 days to maturity
🌿 Basil	May 4 – May 18	30–60 days to maturity
🌱 Chives	Apr 20 – May 4	75–85 days to maturity
🌿 Oregano	Apr 20 – May 4	80–90 days to maturity
🌸 Zinnias	May 18 – May 25	60–70 days to maturity
🏵️ Marigolds	May 4 – May 18	50–60 days to maturity

Transplant outdoors — Set out sturdy transplants during these windows.

🥬 Lettuce	May 18 – Jun 1	45–60 days to maturity
🥬 Kale	May 18 – Jun 1	55–65 days to maturity
🍃 Collard Greens	May 18 – Jun 1	60–75 days to maturity
🥬 Cabbage	May 18 – Jun 1	65–85 days to maturity
🥦 Broccoli	May 25 – Jun 8	60–75 days to maturity
🧅 Onions	May 4 – May 18	90–110 days to maturity
🧅 Leeks	May 18 – Jun 1	100–120 days to maturity

Direct sow — Seeds straight into garden soil.

🫛 Peas	May 4 – May 18	55–70 days to maturity
🥬 Lettuce	May 18 – Jun 15	45–60 days to maturity
🍃 Spinach	May 4 – May 18	40–50 days to maturity
🥬 Kale	May 18 – Jun 1	55–65 days to maturity
🌿 Arugula	May 11 – May 25	30–40 days to maturity
🥬 Kohlrabi	May 18 – Jun 1	45–60 days to maturity
🥕 Carrots	May 25 – Jun 15	60–75 days to maturity
🫒 Beets	May 18 – Jun 1	50–65 days to maturity
🌶️ Radishes	May 11 – May 25	22–30 days to maturity
🥔 Turnips	May 18 – Jun 1	40–55 days to maturity
🥕 Parsnips	May 25 – Jun 15	100–120 days to maturity
🧅 Onions	May 18 – Jun 1	90–110 days to maturity
🧅 Scallions	May 18 – Jun 1	60–70 days to maturity
🥔 Potatoes	May 18 – Jun 1	70–100 days to maturity
🥬 Bok Choy	May 25 – Jun 8	45–55 days to maturity
🌿 Mustard Greens	May 18 – Jun 1	35–45 days to maturity
🌿 Cilantro	May 25 – Jun 8	45–55 days to maturity

Fall planting — Counted back from the first fall frost.

🥬 Cabbage	May 19 – Jun 2	65–85 days to maturity
🥦 Broccoli	May 19 – Jun 2	60–75 days to maturity
🥦 Cauliflower	May 19 – Jun 2	60–80 days to maturity

Windows use zone 1's typical frost dates (Jun 15 / Aug 25). For your own city's dates, run the frost lookup — the planting calendar then localizes everything automatically.