New York gardeners must time their September plantings carefully to ensure vegetables mature before the first hard freeze. Knowing the best vegetables to plant in september in new york can make the difference between a bountiful fall harvest and a disappointing end to the growing season.
September in New York brings cooler nights and shorter days, which is perfect for many cool-season crops. You can still get a lot of produce before winter arrives if you choose the right varieties and plant them early enough.
Best Vegetables To Plant In September In New York
This list focuses on vegetables that thrive in the cooler temperatures of a New York autumn. They grow quickly and can handle light frosts, which are common in late October and November.
Leafy Greens For Quick Harvests
Leafy greens are your best bet for September planting. They grow fast and you can start harvesting leaves in just a few weeks.
- Spinach: Plant spinach seeds directly in the ground. It loves cool weather and grows well even when temperatures drop into the 40s. Harvest outer leaves when they are big enough.
- Kale: Kale is extremely hardy. It actually tastes sweeter after a light frost. Plant seedlings or seeds now for a harvest that can last into December.
- Lettuce: Choose loose-leaf or romaine varieties. They mature in 45 to 60 days. You can also plant them in containers to move indoors if a hard freeze is predicted.
- Arugula: This peppery green grows very fast. You can harvest baby leaves in about 3 weeks. It does well in partial shade.
- Swiss Chard: Swiss chard is colorful and tolerates both heat and cold. It produces leaves for weeks if you keep picking them.
Root Vegetables For Storage
Root vegetables are ideal for September because they store well and can be left in the ground until you need them. They develop better flavor in cool soil.
- Carrots: Sow carrot seeds directly in loose, deep soil. They need consistent moisture to germinate. Varieties like ‘Nantes’ or ‘Danvers’ mature in 60 to 70 days.
- Beets: Beets grow quickly and you can eat both the roots and the greens. Plant seeds 1 inch apart and thin them as they grow. They tolerate light frost.
- Radishes: Radishes are the fastest root crop. Some varieties are ready in just 25 days. Plant them in succession every two weeks for a continuous harvest.
- Turnips: Turnips are underrated. They grow well in cool weather and the roots store for months. ‘Purple Top White Globe’ is a reliable variety.
- Parsnips: Parsnips take longer to mature, but they are worth it. They need about 100 days. Plant them now and harvest after the first frost for the sweetest flavor.
Brassicas For Fall Flavor
Brassicas, or cabbage family crops, thrive in cool weather. They are some of the most cold-tolerant vegetables you can plant.
- Broccoli: Broccoli grows best when temperatures are between 60 and 70 degrees. Plant transplants for a faster harvest. Look for varieties like ‘Green Goliath’ that mature in 50 days.
- Cauliflower: Cauliflower is a bit more finicky but doable. It needs consistent moisture and cool nights. Choose quick-maturing varieties like ‘Snow Crown’.
- Cabbage: Cabbage is very hardy. You can plant it now and harvest heads well into November. ‘Early Jersey Wakefield’ is a good choice for fall.
- Brussels Sprouts: Brussels sprouts take a long time, about 90 to 100 days. But they are extremely frost tolerant. Plant them now for a harvest after Thanksgiving.
- Kohlrabi: Kohlrabi is a fast-growing brassica. The bulb-like stem is edible and tastes like a mild turnip. It matures in 45 to 60 days.
Alliums For Next Year
September is also the time to plant garlic and onions for a harvest next summer. They need a cold period to develop properly.
- Garlic: Plant individual cloves in well-drained soil. They will root in the fall and go dormant over winter. Harvest them next July or August.
- Onions: Plant onion sets or seeds for overwintering. They will grow slowly in fall and spring, giving you large bulbs by early summer.
- Shallots: Shallots are similar to garlic. Plant them in September for a harvest next June. They store very well.
Herbs That Tolerate Cold
Many herbs can be planted in September and will keep producing until a hard freeze. Some even survive winter.
- Parsley: Parsley is a biennial that survives light frosts. Plant it now and you can pick leaves until December.
- Cilantro: Cilantro bolts quickly in heat but loves cool weather. Plant seeds every few weeks for a steady supply.
- Chives: Chives are perennial and very hardy. Plant them now and they will come back every year.
- Dill: Dill grows fast in cool weather. Use the leaves fresh or let the seeds develop for pickling.
How To Prepare Your Garden For September Planting
Before you plant, you need to get your soil ready. September soil can be dry and compacted from summer heat. Follow these steps.
- Remove spent plants: Pull out any summer vegetables that are done producing. Remove weeds and debris.
- Amend the soil: Add 2 to 3 inches of compost or well-rotted manure. Work it into the top 6 inches of soil.
- Check pH: Most fall vegetables prefer a pH between 6.0 and 7.0. Test your soil and add lime if needed.
- Water deeply: Water the soil thoroughly a day before planting. This helps seeds germinate faster.
- Consider raised beds: Raised beds warm up faster in spring and drain better in fall. They are great for September planting.
Timing Your Plantings
New York has different climate zones. Upstate New York gets frost earlier than the city or Long Island. Check your local frost date.
- Zone 4-5 (Adirondacks, Catskills): First frost is usually in late September. Plant only very fast crops like radishes and spinach.
- Zone 6 (Hudson Valley, Capital Region): First frost is around mid-October. You have time for most greens and root vegetables.
- Zone 7 (New York City, Long Island): First frost is in early November. You can plant almost everything on this list.
Count backwards from your first frost date. Add the days to maturity for each vegetable. Plant early enough so they mature before that date. For example, if your first frost is October 15 and you want to plant broccoli that takes 60 days, you need to plant by August 15. But for September planting, focus on crops that mature in 30 to 50 days.
Using Row Covers And Cold Frames
You can extend your growing season significantly with simple protections. These tools are cheap and effective.
- Row covers: Lightweight fabric that lets light and water through but protects from frost. They add 5 to 10 degrees of warmth.
- Cold frames: A box with a glass or plastic top. It traps heat from the sun. You can grow greens all winter in a cold frame.
- Cloches: Individual covers for plants. Use plastic bottles or glass jars. They protect against light frosts.
- Mulch: A thick layer of straw or leaves insulates the soil. It keeps roots warmer and prevents heaving.
Watering And Fertilizing In September
September weather can be unpredictable. Some days are hot, others are cool. Adjust your watering accordingly.
- Water less frequently: Cooler weather means less evaporation. Water once or twice a week unless it is very dry.
- Water deeply: Deep watering encourages roots to grow deeper. This helps plants survive frost.
- Use drip irrigation: Drip systems deliver water directly to the roots. They reduce disease by keeping leaves dry.
- Fertilize lightly: Use a balanced fertilizer like 10-10-10 at half strength. Too much nitrogen makes leafy greens tender and more susceptible to frost.
- Stop fertilizing in October: Plants need to slow down growth as days get shorter. Fertilizing late can cause new growth that gets killed by frost.
Common Pests In September
Fall gardens have fewer pests than summer gardens, but some still cause problems. Watch for these.
- Aphids: Small green or black insects on new growth. Spray them off with water or use insecticidal soap.
- Cabbage worms: Green caterpillars that eat holes in leaves. Handpick them or use floating row covers.
- Slugs and snails: They love cool, damp weather. Set out beer traps or sprinkle diatomaceous earth around plants.
- Flea beetles: Tiny jumping beetles that make small holes in leaves. Use row covers to keep them off.
Harvesting Your September-Planted Vegetables
Harvesting at the right time ensures the best flavor and texture. Most fall vegetables taste better after a light frost.
- Leafy greens: Pick outer leaves when they are 4 to 6 inches long. Leave the inner leaves to keep growing.
- Root vegetables: Pull them when they reach the right size. Carrots should be about 1 inch in diameter. Beets are best at 2 inches.
- Brassicas: Harvest broccoli heads when the buds are tight. Cut cabbage heads when they feel firm. Pick Brussels sprouts from the bottom up.
- Garlic and onions: Wait until the tops turn yellow and fall over. Then dig them up and cure them in a dry place.
Storing Your Fall Harvest
Many fall vegetables store for months if you handle them correctly. Here are simple storage tips.
- Root cellaring: Keep root vegetables in a cool, dark, humid place. A basement or garage works well. Pack them in damp sand or sawdust.
- Refrigeration: Leafy greens and brassicas keep in the fridge for weeks. Wrap them in damp paper towels and put them in plastic bags.
- Freezing: Blanch vegetables like spinach, kale, and broccoli before freezing. They will keep for up to a year.
- Drying: Herbs like parsley and dill dry easily. Hang them in a dark, airy place.
Frequently Asked Questions
What vegetables can I plant in September in New York for a fall harvest?
You can plant spinach, kale, lettuce, arugula, Swiss chard, carrots, beets, radishes, turnips, parsnips, broccoli, cauliflower, cabbage, Brussels sprouts, and kohlrabi. All of these grow well in cool weather and can handle light frosts.
Is it too late to plant tomatoes in September in New York?
Yes, it is too late for tomatoes. They need warm soil and long days to produce fruit. Focus on cool-season crops instead. You can try planting cherry tomatoes in a container and moving it indoors, but the yield will be small.
Can I plant garlic in September in New York?
Absolutely. September is the perfect time to plant garlic in New York. The cloves will root before winter and grow into large bulbs by next summer. Plant them 4 inches deep and 6 inches apart.
How do I protect my September-planted vegetables from frost?
Use row covers, cold frames, or cloches to protect plants from light frosts. Mulch around the base of plants to insulate the soil. Water the soil before a frost because wet soil holds heat better than dry soil.
What are the fastest-growing vegetables to plant in September in New York?
Radishes are the fastest, ready in 25 days. Arugula and baby spinach can be harvested in 3 weeks. Loose-leaf lettuce is also quick, maturing in 30 to 40 days. These are great choices if you want a harvest before winter.
Final Tips For Success
September planting in New York is all about timing and choosing the right varieties. Start with a small patch if you are new to fall gardening. You will be surprised how much you can grow.
Keep an eye on the weather forecast. Cover your plants when a hard freeze is predicted. Most vegetables can handle a light frost, but a hard freeze below 28 degrees will kill tender crops.
Dont forget to water your seeds regularly. September can be dry, and seeds need consistent moisture to germinate. Once they sprout, water less often but more deeply.
Finally, enjoy the process. Fall gardening is less work than summer gardening. The cooler temperatures make it more comfortable to work outside. And the taste of fresh vegetables from your own garden in November is worth the effort.
With the right plan and a little care, you can extend your growing season well into late autumn. Start with the best vegetables to plant in september in new york and you will have a productive fall garden that keeps your table full of fresh, homegrown food.