In heavy winter areas, that means from late September or October up until the ground freezes. (If you don't have much frost in your area, you should plant just before your rainiest season begins.
While you can plant a late planting to the first frost date, it's always best to allow as much growing time as possible. If you missed the spring planting, then calculate which vegetables you can grow now and still have a harvest before the first frost.
However, July and August are the best time to get a start on fall and winter food gardening. In Southern California, some of the best months to grow veggies are in the fall and winter, when we have natural rainfall.
But if you start too late, they won't be mature enough for transplanting into the garden by spring. It takes a little practice, but in time you will be able to create your own seed planting schedule so you know exactly when to start each variety.
Some fast growing fall crops like lettuce and radishes can be planted into late September, but many desirable fall crops like broccoli and carrots need several months of prime-growing conditions to mature before frost and low light levels set in.
For April, May or June blooms, plant seed directly outdoors August-October. For June, July, August and/or September blooms, plant your seed outdoors March-June. Seedlings normally tolerate a light frost.
Depending on the type of seed, it is definitely not too late to plant grass seed in October. Cool season grass seed varieties like Jonathan Green Black Beauty grass seed do well with planting in October. The most important thing is to lay the seeds down at least 45 days before the first threat of frost.
Grow an Edible Garden With Fall Vegetables
For a cool-weather vegetable harvest, plant lettuce, collards, carrots, Brussel sprouts, spinach, broccoli, radish, and more. The general rule of thumb is to plant fall vegetables from seed 90 days before the first frost.
Yes! Even seeds that are thousands of years old can germinate. But proper pre-treatment is essential, and the older the seed, the less energy it has left in storage.
Traditional planting time is October through February, but wildflowers are adaptable to many different planting regimes, and there is a broad planting window, especially on the coast. Some even swear by late summer sowings, allowing the seeds the chance to bake in the sun.
Spread the seeds on newspapers, in a cardboard box, or in an old telephone directory, and allow them to dry between one and three weeks. Often seeds need to be separated from the chaff (the seed casings and debris).
Turnips, Carrots, Radishes, and Beets
These root vegetables don't mind hanging out in the cold. You may see minimal growth, but they will certainly get the head start come spring. You may even notice a sweeter taste.
If you live in a frost-free region, October is a great time to plant cool-weather flowers and vegetables in your garden. Crops such as kale, cabbage, collards, lettuce, carrots, mustard, onions, Brussels sprouts, cauliflower, beets, and garlic can all be planted in early to late October.
While planting grass seed in November is too late to make the fall growing season, there is a method called dormant seeding. Through dormant seeding, grass seed can be planted in November when the weather is cold enough to keep it dormant until the weather warms up in the spring.
It can take from two to four weeks for grasses to grow in October, especially if it is a warm-season grass. Cool-season grasses can still germinate and take root in the cooler temperatures of late fall, though you might not see their full potential until spring.
It's never too late. It just matters what you put into that garden. It's too late to grow tomatoes in your Chicago garden in September because you'll be getting cold weather soon, but you could still grow carrots, radishes, and lettuce plants.
Tap Down. Wildflower seeds don't need to be planted in holes; however, they should be tapped down to encourage growth. After you've scattered them over the soil, use the back of a shovel, your hand, or your foot to gently press them into the ground.
Fall planting will be much easier, so you should aim for getting your seed down late in the season, but before the ground freezes entirely.
The truth is seeds don't expire. They lose viability if stored improperly. While most seed companies will tell you to replace seeds every 2-3 years, those seeds will keep for decades and will germinate when planted if kept in a cool, dark, and dry place.
You can transplant perennials anytime until the ground freezes in the fall, or wait to transplant them in the spring. Fall is an excellent time to transplant herbaceous perennials because your plants will then have three seasons to establish a good root system before hot summer weather sets in next year.
Planting in September
Plant now beets, broccoli, Brussels sprouts, carrots, cauliflower, celery, fava beans, kale, kohlrabi, leeks, both head and leaf lettuce, mustard greens, onions, parsley, peas, potatoes, radishes, rutabagas, spinach, Swiss chard, and turnips.