Like several of the cool season vegetables, beet, Beta vulgaris, is a root vegetable. It is, however, the same species as chard, which is leafy greens. Although beet varieties are different from chard varieties, beet foliage is also edible. Beet is biennial, so its roots are not palatable after their first year. They become tough and bitter as they bolt and bloom.
Most beet varieties produce big and round roots that are deep red. Others can be white, yellow or internally striped with red and white. Some have cylindrical roots, or roots that are shaped like carrots. Their foliage is mostly deep green, typically with red midribs like that of chard. Foliage stands only about half a foot broad and a foot high above ground.
As a root vegetable, beet should grow from directly sown seed. Transplanting damages or disfigures roots. Seed should go into organically rich and loose soil about now. Their successive planting may involve subsequent crops every two weeks until spring. Crops can be small if they are so frequent. Beet needs full sun exposure and regular watering.
Cabbage, broccoli, cauliflower, kohlrabi and Brussels sprout are all of the same species. Brassica oleracea is weirdly diverse, and also includes kale and collard. All varieties are collectively the cole crops. They are cool season vegetables that grow from autumn until spring. Most are biennials that grow as annuals. Some kales and collards are perennial.
Collard does not form heads like cabbage does. It instead grows loosely on stout stalks. Most are only about two feet high. A few perennial types can grow six feet high, and can grow from cuttings. All other types grow from seed or cell pack seedlings. More varieties are available as seed than as seedlings. Online markets offer more than nurseries stock.
Although perennial collards provide greens all year, they are better during cool weather. Also, collard greens are best while young and tender, before they mature too completely. They are easy to collect from the bottoms of the foliar rosettes, upward towards the tops. They need, however, to retain enough leaves to continue growing through their season.
Cool season annuals are a clue. They are currently replacing deteriorating warm season annuals. Vegetable gardening should involve a similar process. After all, most vegetable plants are annuals. Some of those that performed through summer are now getting tired. Cool season vegetables, or winter vegetables, should replace warm season vegetables.
Just like different flowering annuals, different vegetables operate on different schedules. Some warm season vegetables finish late in summer. Others continue until autumn chill. Some cool season vegetables prefer to start early, while the weather is still warm. Others can start late to grow through winter. The transition may continue through part of autumn.
Furthermore, different phases of some vegetables begin and finish at different times. For example, most corn is finished for summer. However, some late phases can continue for early autumn. Early phases of beet can begin now. Later phases might continue through winter. Summer vegetables should relinquish space as cool season vegetables need it.
Most cool season vegetables are true vegetables. In other words, they are not fruit which contain seeds, like tomato, squash and corn. Cabbage and Chard are distended foliage. Broccoli and cauliflower are distended floral bloom. Carrot and beet are distended roots. All initially grow slower than warm season vegetables, but then do not take time to ripen.
All cool season vegetables that are roots should grow from directly sown seed. They are susceptible to disfigurement with transplanting. Besides, they typically grow in quantities that are excessive for transplanting. They include beet, radish, turnip, carrot and parsnip. Cucumber and pea are conducive to transplanting, but also grow very easily from seed.
Cabbage, broccoli, cauliflower and heading lettuces are larger cool season vegetables. Since only a few are desirable, planting them as cell pack seedlings is a practical option. They happen to be more conducive to transplanting than root vegetables are. Seedlings of cool season vegetables are now available from nurseries. Seed are always available. Although seedlings start growing sooner, more varieties are available from seed.
Leek, Allium ampeloprasum, is an old fashioned but traditional cool season vegetable. It is rare among home gardens, but has been in cultivation for thousands of years. It is one of the floral emblems of Wales, in conjunction with daffodil. In cooler climates, leeks may grow through summer for autumn harvest. They are only a cool season vegetable locally.
Leeks grow easily from directly sown seed, but are alternatively conducive to transplant. Therefore, they can start in flats while warm season vegetables are still producing. Then, they can transition to the garden early enough to mature before frost. Later phases which grow through winter are quite tolerant of mild frost. They might even be bigger and better.
Like several cool season vegetables, leeks are in no rush for harvest. Once mature, they can linger in their gardens for weeks without deteriorating or bolting. Like related onions, they prefer somewhat rich and loose soil. Until the winter rainy season begins, they need regular watering. Thrips can be more of a problem in other regions during warm weather.
Warm season vegetables that started late last winter will be finishing their seasons soon. Cool season vegetables, or winter vegetables, should begin to replace them. This might sound familiar as the same scenario for warm and cool season annuals. After all, almost all vegetable plants are either annuals or biennials. Few perform for more than a season.
Just like annual bedding plants, different vegetable plants perform to different schedules. Some warm season vegetables begin to deteriorate as warm weather ends. Others may continue to produce until frost. Some cool season vegetables need an early start. Others can start late and grow through cool winter weather. Gardens need not transition quickly.
Besides, different phases of some types of vegetables begin and finish at different times. Although late phases of corn continue to grow, early phases are already done and gone. Although late phases of beet might begin months from now, early phases can begin now. Warm season vegetables, ideally, relinquish space as cool season vegetables require it.
Cool season vegetables grow slower than warm season vegetables. Also, more of them are true vegetables rather than fruit that contain seed. Many are distended roots, such as beet and carrot. Many are distended foliage, such as cabbage and chard. A few, such as broccoli and cauliflower, are distended floral bloom. Peas are actually fruiting structures.
All root vegetables should grow directly from seed. They are vulnerable to disfigurement if transplanted. Besides, they typically grow in significant quantities that are not practical for transplant. These include beet, carrot, radish, turnip and parsnip. Cucumber and pea, although conducive to transplanting, also perform better from seed. So do lettuce greens.
Heading lettuce, though, is more like cabbage and larger cool season vegetables. Since only a few are necessary, transplanting them as seedlings is practical. Besides, they are conducive to transplanting. Cell pack seedlings for cool season vegetables are available from nurseries now. Seed is always available. It can go directly into a garden or into cells for transplanting later, as summer becomes autumn, then winter.
Leek, garlic, shallot and other species of the genus have more distinct growing seasons. Technically, onion, Allium cepa, is a cool season vegetable. It grows through winter to be ready for harvest before summer dormancy. Alternatively, it can grow through spring for a later summer harvest. In cool situations, it can grow through summer for autumn harvest.
Onions do not actually mature within a single season anyway. Most grow from onion sets which are simply small onions that grew from seed earlier. They simply finish growing for another season once plugged into a garden. Those that grow from seed in autumn might go dormant through the middle of winter. Spring is actually their second growing season.
The most popular onions are yellow or brown, red or purple, or white. Each type exhibits a distinct flavor. All develop a few hollow bluish green leaves that stand about a foot tall. Their foliage shrivels as they mature enough for harvest. They are useless if they bloom. Green onions are merely juvenile onions which have not yet developed distended bulbs.
Mustard is not easy to classify. It is a cool season vegetable here, although it grows until summer gets too hot. In cooler climates, it is a warm season vegetable. Whether warm or cool season, it provides more than greens. For agricultural applications, it is also a cover crop and livestock fodder. Its seed and seed oil have culinary and medicinal application.
Also, some consider mustard to be a wildflower, and some consider it to be a weed. Most but not all species that naturalized here are of the genus Brassica. None are native. Wild turnip and wild radish are similar and are also naturalized, but not as aggressively. Their bloom may be pink or creamy white. Most mustard varieties display bright yellow bloom.
Garden varieties of mustard have milder flavor and finer texture than wild sorts. They are sometimes available as cell pack seedlings, but grow like weeds from seed. Varieties for mustard seed might only be available online or from mail order catalogs. Mustard greens develop bitter flavor with age or bloom. Bigger lower leaves can develop coarser texture.
Winter bedding plants are a reminder. They become in season at about the same time as winter vegetables. Therefore, as pansies replace petunias, turnips may begin to replace okra. As for bedding plants, it is a slow process that can continue until frost. Some winter vegetables start earlier than others. Some summer vegetables produce later than others.
For example, young okra plants that started late can continue to be productive until frost. There is no need to replace them until then. Instead, older okra plants that started earlier also finish and vacate their space earlier. Early phases of turnip seed can use this space as it becomes vacant. Then, later phases of turnip seed can replace later phases of okra.
Winter vegetables, or cool season vegetables, do grow slower than summer vegetables. In that regard, spring and summer warmth is an advantage. Consequently, recovery from delays is not as easy for them. More winter vegetables than summer vegetables are true vegetables. In other words, they are not fruit that contain seed. Many are distended roots.
This is why most winter vegetables should grow directly from seed. Root vegetables are susceptible to disfigurement from transplanting. Also, most usually grow in quantities that are impractical for transplanting. Most winter vegetables that are practical for transplants grow big above ground. This includes small groups of broccoli, cauliflower and cabbage.
Because broccoli, cauliflower and cabbage are so big, only a few of each are necessary. One or two cell packs of seedlings may be sufficient. They may not cost much more than packets of seed. Also, they are immediately ready for transplant. Seed must start growing earlier, in cells, flats or in their gardens. However, more varieties are available from seed.
Beet, carrot, radish, turnip and parsnip are roots that must grow from seed. Baby lettuces grow from seed because they are so numerous. Hedding lettuces can grow from seed or seedlings. So can peas and cucumbers, but they are more likely to grow best from seed. Successive sowing or planting prolongs production time of almost all winter vegetables. Subsequent phases begin production as their preceding phases finish.
Resemblance to lettuce is merely coincidental. Cabbage, Brassica oleracea, is instead a close relative of very dissimilar vegetables. Brussels sprout, broccoli and cauliflower are different varieties of the same species. So are collard, kale and kohlrabi. All are winter cole crops. (Cabbage comprises the varieties of capitata, tuba, sabauda or acephala.)
Cabbage became seasonable last autumn. Its last phase is now maturing. It grows most easily from cell pack seedlings. Alternatively, it can grow from seed, which starts about a month and half earlier. Cabbage is biennial, so will go to seed if it stays in the garden too late. Warm weather initiates and accelerates the process, which ruins flavor and texture.
Green cabbage is the most popular type. Red cabbage is the second most popular type. Dutch white cabbage often classifies simply as a pale type of green cabbage. A mature cabbage weighs about a pound or two. Its loose outer foliage can be a foot to nearly two feet wide. Within more ideal climates, some varieties grow slower but significantly larger. With rain through winter, irrigation is probably unnecessary. Soil should be organically rich.
Warm season vegetables are replacing cool season vegetables about now. Technically, lettuce, Lactuca sativa, is a cool season vegetable. It grows through spring and autumn though. The last of it can continue almost until May. Within the mildest coastal climates, it can continue later. By the time it finishes there, it is almost time to plant more for autumn.
After thousands of years of cultivation and breeding, lettuce is now remarkably diverse. Most popular varieties are leaf, head or romaine types. Leaf lettuce is mostly green, but can be bronze, reddish or irregularly blotched. Most varieties develop loosely ruffly foliar texture. Romaine and head lettuce is denser but larger. Some grow a foot high and wide.
One commonality among lettuce varieties is that they tolerate neither frost nor arid heat. Some are a bit more tolerant of one or the other, which can prolong their season. Some of the larger romaine and head types need nearly four months to mature, though. Only a single phase matures within each season. Smaller types might mature in about a month.
