What to Plant in April — Zone 5

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

🌈 Swiss Chard	Mar 18 – Apr 1	50–60 days to maturity
🥒 Cucumbers	Mar 25 – Apr 1	50–70 days to maturity
🥒 Zucchini	Mar 25 – Apr 1	45–60 days to maturity
🎃 Winter Squash	Mar 25 – Apr 1	85–110 days to maturity
🎃 Pumpkins	Mar 25 – Apr 1	90–110 days to maturity
🍉 Watermelon	Mar 25 – Apr 1	75–95 days to maturity
🍈 Cantaloupe	Mar 25 – Apr 1	75–90 days to maturity
🌶️ Okra	Mar 25 – Apr 1	55–65 days to maturity
🌸 Zinnias	Mar 25 – Apr 1	60–70 days to maturity

Transplant outdoors — Set out sturdy transplants during these windows.

🥬 Lettuce	Mar 25 – Apr 8	45–60 days to maturity
🥬 Kale	Mar 25 – Apr 8	55–65 days to maturity
🌈 Swiss Chard	Apr 8 – Apr 22	50–60 days to maturity
🍃 Collard Greens	Mar 25 – Apr 8	60–75 days to maturity
🥬 Cabbage	Mar 25 – Apr 8	65–85 days to maturity
🥦 Broccoli	Apr 1 – Apr 15	60–75 days to maturity
🥦 Cauliflower	Apr 8 – Apr 22	60–80 days to maturity
🥬 Brussels Sprouts	Apr 22 – May 6	90–110 days to maturity
🧅 Leeks	Mar 25 – Apr 8	100–120 days to maturity
🥬 Celery	Apr 22 – May 6	100–120 days to maturity
🍅 Tomatoes	Apr 29 – May 6	60–85 days to maturity
🍏 Tomatillos	Apr 29 – May 6	70–80 days to maturity
🥒 Cucumbers	Apr 29 – May 6	50–70 days to maturity
🥒 Zucchini	Apr 29 – May 6	45–60 days to maturity
🎃 Winter Squash	Apr 29 – May 6	85–110 days to maturity
🎃 Pumpkins	Apr 29 – May 6	90–110 days to maturity
🌿 Basil	Apr 29 – May 6	30–60 days to maturity
🌿 Parsley	Apr 8 – Apr 22	70–90 days to maturity
🌱 Chives	Apr 8 – Apr 22	75–85 days to maturity
🌿 Thyme	Apr 22 – May 6	90–120 days to maturity
🌿 Oregano	Apr 22 – May 6	80–90 days to maturity
🌸 Zinnias	Apr 29 – May 6	60–70 days to maturity
🏵️ Marigolds	Apr 29 – May 6	50–60 days to maturity

Direct sow — Seeds straight into garden soil.

🥬 Lettuce	Mar 25 – Apr 22	45–60 days to maturity
🥬 Kale	Mar 25 – Apr 8	55–65 days to maturity
🌿 Arugula	Mar 18 – Apr 1	30–40 days to maturity
🌈 Swiss Chard	Apr 8 – Apr 22	50–60 days to maturity
🍃 Collard Greens	Apr 8 – Apr 22	60–75 days to maturity
🥬 Kohlrabi	Mar 25 – Apr 8	45–60 days to maturity
🥕 Carrots	Apr 1 – Apr 22	60–75 days to maturity
🫒 Beets	Mar 25 – Apr 8	50–65 days to maturity
🌶️ Radishes	Mar 18 – Apr 1	22–30 days to maturity
🥔 Turnips	Mar 25 – Apr 8	40–55 days to maturity
🥕 Parsnips	Apr 1 – Apr 22	100–120 days to maturity
🧅 Onions	Mar 25 – Apr 8	90–110 days to maturity
🧅 Scallions	Mar 25 – Apr 8	60–70 days to maturity
🥔 Potatoes	Mar 25 – Apr 8	70–100 days to maturity
🥬 Bok Choy	Apr 1 – Apr 15	45–55 days to maturity
🌿 Mustard Greens	Mar 25 – Apr 8	35–45 days to maturity
🥒 Cucumbers	Apr 29 – May 6	50–70 days to maturity
🥒 Zucchini	Apr 29 – May 6	45–60 days to maturity
🎃 Winter Squash	Apr 29 – May 6	85–110 days to maturity
🎃 Pumpkins	Apr 29 – May 6	90–110 days to maturity
🌽 Sweet Corn	Apr 29 – May 6	65–90 days to maturity
🫘 Green Beans (Bush)	Apr 29 – May 6	50–60 days to maturity
🫘 Pole Beans	Apr 29 – May 6	60–70 days to maturity
🌿 Cilantro	Apr 1 – Apr 15	45–55 days to maturity
🌿 Parsley	Apr 8 – Apr 22	70–90 days to maturity
🌾 Dill	Apr 8 – Apr 22	40–55 days to maturity
🌱 Chives	Apr 8 – Apr 22	75–85 days to maturity
🌻 Sunflowers	Apr 29 – May 6	70–100 days to maturity
🌸 Zinnias	Apr 29 – May 6	60–70 days to maturity
🏵️ Marigolds	Apr 29 – May 6	50–60 days to maturity
🌺 Nasturtiums	Apr 29 – May 6	55–65 days to maturity

Windows use zone 5's typical frost dates (Apr 22 / Oct 12). For your own city's dates, run the frost lookup — the planting calendar then localizes everything automatically.