What to Plant in March — Zone 9

Transplant outdoors — Set out sturdy transplants during these windows.

🥬 Brussels Sprouts	Feb 20 – Mar 6	90–110 days to maturity
🥬 Celery	Feb 20 – Mar 6	100–120 days to maturity
🍅 Tomatoes	Feb 27 – Mar 6	60–85 days to maturity
🫑 Peppers	Mar 6 – Mar 13	60–90 days to maturity
🍆 Eggplant	Mar 6 – Mar 13	65–80 days to maturity
🍏 Tomatillos	Feb 27 – Mar 6	70–80 days to maturity
🥒 Cucumbers	Feb 27 – Mar 6	50–70 days to maturity
🥒 Zucchini	Feb 27 – Mar 6	45–60 days to maturity
🎃 Winter Squash	Feb 27 – Mar 6	85–110 days to maturity
🎃 Pumpkins	Feb 27 – Mar 6	90–110 days to maturity
🍉 Watermelon	Mar 6 – Mar 13	75–95 days to maturity
🍈 Cantaloupe	Mar 6 – Mar 13	75–90 days to maturity
🌶️ Okra	Mar 13 – Mar 20	55–65 days to maturity
🍠 Sweet Potatoes	Mar 6 – Mar 20	90–120 days to maturity
🌿 Basil	Feb 27 – Mar 6	30–60 days to maturity
🌿 Thyme	Feb 20 – Mar 6	90–120 days to maturity
🌿 Oregano	Feb 20 – Mar 6	80–90 days to maturity
🌸 Zinnias	Feb 27 – Mar 6	60–70 days to maturity
🏵️ Marigolds	Feb 27 – Mar 6	50–60 days to maturity

Direct sow — Seeds straight into garden soil.

🥒 Cucumbers	Feb 27 – Mar 6	50–70 days to maturity
🥒 Zucchini	Feb 27 – Mar 6	45–60 days to maturity
🎃 Winter Squash	Feb 27 – Mar 6	85–110 days to maturity
🎃 Pumpkins	Feb 27 – Mar 6	90–110 days to maturity
🍉 Watermelon	Mar 6 – Mar 13	75–95 days to maturity
🍈 Cantaloupe	Mar 6 – Mar 13	75–90 days to maturity
🌽 Sweet Corn	Feb 27 – Mar 6	65–90 days to maturity
🫘 Green Beans (Bush)	Feb 27 – Mar 6	50–60 days to maturity
🫘 Pole Beans	Feb 27 – Mar 6	60–70 days to maturity
🌶️ Okra	Mar 6 – Mar 20	55–65 days to maturity
🌿 Basil	Mar 6 – Mar 13	30–60 days to maturity
🌻 Sunflowers	Feb 27 – Mar 6	70–100 days to maturity
🌸 Zinnias	Feb 27 – Mar 6	60–70 days to maturity
🏵️ Marigolds	Feb 27 – Mar 6	50–60 days to maturity
🌺 Nasturtiums	Feb 27 – Mar 6	55–65 days to maturity

Windows use zone 9's typical frost dates (Feb 20 / Dec 1). For your own city's dates, run the frost lookup — the planting calendar then localizes everything automatically.