This planting guide covers the coastal and inland regions of San Diego County. They can even thrive in the cool, wet weather that spells disaster for many vegetables. Therefore, container gardens and raised bed gardens are the best places to raise them. Cooler weather also has more rain, fewer insects and fewer weeds. What Is a Good Winter Vegetable to Plant? Don’t worry about watering too deeply; lettuce and most other cool-season vegetables have shallow roots. Cool-weather vegetables include salad greens, peas and root vegetables. There are several vegetable crops that prefer the cooler temperatures of spring over the dog hot days of summer. Full Description. Other Ways to Protect Cool Season Crops in Summer One of the easiest ways to protect cool weather vegetables from heat is by mulching. In the warmest parts of the country, such as the south, the weather remains balmy enough even in the coolest days of the year to raise cold-hardy vegetables such as kale or beets. Other cool-season vegetables include cauliflower, broccoli, carrots, celery, and radishes. Horticultural Specialist Mitch Baker demonstrates how to add new soil, plant seedlings and fertilize cool season vegetable plants. sativa) Who doesn’t love the spicy sharp kick of a fresh arugula salad? The warm weather helps with germination and the longer days allow time for the crop to develop and mature by the time winter arrives. It’s almost here – the fall crispness will soon be in the air. Planting vegetable seeds or transplants at the correct time is important to getting the most out of your garden. The hardiest of the salad greens, spinach can withstand temperatures to 0°F and turns sweeter as the weather gets colder. Because the sun dips more to the south in winter, you may need to relocate your garden to a sunnier part of your yard. Knowing what to grow, when to plant the seeds, along with a few tricks, will help ensure your spring vegetables and crops thrive. Tolerant down to 0°F, this resilient crop is ideal for cold climate gardens. One secret of success is to use your water wand in “spray” mode each evening after sunset to refresh and cool the plants and soil. Stick with transplants or fast-maturing crops. Many of the vegetables that prefer cooler weather will grow in the heat of summer, but poorly. For most, cool-season vegetable gardens are intended for a fall or winter harvest. Cool weather vegetables, such as broccoli, kale, and lettuce, prefer the lower temperatures found in spring and fall. Planting winter vegetables in a region where the risk of frost is imminent will help you avoid losses when the weather goes haywire. Other Cool Weather Vegetable Plantings. Not only do cool weather veggies keep your planting areas productive for more months of the year, they also allow you to get out in the garden earlier in the spring. Lettuce. Vegetables need either cool or warm weather to thrive. Cool weather vegetables are a great way to get a head start on the season's plantings. These crops thrive in cooler temperatures and are ideal spring plants. Here are my top picks of vegetables to grow when the thermometer begins to rise. Below, you’ll find a list of 18 cold hardy vegetables capable of tolerating low temperatures (and even thriving in them!). No cold frames or greenhouses needed – these are the easiest varieties to grow in cold weather and the ideal crops for beginner gardeners or those wanting a low-maintenance garden in fall and winter. It’s almost here – the fall crispness will soon be in the air. Broccoli, cabbage, cauliflower, kohlrabi, bok choy, and Brussels sprouts can be roasted, braised, thrown in soup, the list is endless. Why Can’t I Plant Them When It Is Hot?? Lettuces, for example, grow fine during the summer heat, but the heat also makes them bolt to seed more quickly and the leaves turn bitter. 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