They can be divided into two general groups, tender and very tender, based on their cold tolerance. Mid-march to mid-April is nice timing to plant these, either from seeds you started or by purchasing seedlings from a local garden center.Īlthough it may be getting late for some of the cool-season crops, there is a whole suite of warm-season vegetables that can be planted outdoors in the coming month. Some cool season crops, like broccoli, cabbage and Brussels sprouts actually work better when transplanted out as seedlings in the very early season as opposed to being direct seeded. Peas are extremely cold tolerant and can actually be planted as soon as the soil thaws from winter. However, many crops like spinach, leaf lettuce, kale, onion, and kohlrabi can be direct seeded much earlier, about mid-March.
Will cold weather afect carrot seeds in illinois free#
Right now we are about 2 weeks from the frost free date, making it nice timing for direct seeding of beets, carrots, radish or even spinach. Many of the cool-season veggies can be direct seeded into the soil outdoors, which is by far the easiest and cheapest way to establish plants. In fact they are most productive in the cooler portion of the growing season and must be planted early in spring or closer to fall. Timing on planting these crops still centers on an estimation of our frost-free date, although they are able to tolerate cooler temperatures. However, I have already been busy out in the garden since there is also a large selection of cool-season vegetable crops that can tolerate cold. So, I usually consider May 1st a good point to assume we will be pretty much frost free going forward and sensitive, warm-season plants can be added to the garden outdoors. In central Illinois, our frost free date typically falls somewhere around late April or early May. The Illinois State Water Survey has a wonderful map publishing the data online in an easily used format. Long term weather data has allow us to somewhat reliably predict the average date that any area in Illinois would be likely to have the last freezing temperatures of the year, symbolizing the start of the growing season. One of the key factors in knowing when to plant your vegetable garden relates back to weather since some plants are very sensitive to colder temperatures. Although this past week’s weather trended toward more winter-like conditions, we all know that warmer spring weather is just right around the corner and next week looks quite promising.
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