Flowering Brussels Sprouts Field. Brassica oleracea. Gemmifera Cultivar Group. January 21, 2016. |
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Flowers Brussels Sprouts Field. Brassica oleracea. Gemmifera Cultivar Group. January 21, 2016. |
Brussels Sprouts Field. Brassica oleracea. Gemmifera Cultivar Group. Photo: Wikipedia, the free encyclopedia. |
Brussels Sprouts. Brassica oleracea. Gemmifera Cultivar Group. Photo Courtesy: Wikipedia, the free encyclopedia. | Brussels Sprouts. Brassica oleracea. Gemmifera Cultivar Group. Photo Courtesy: Wikipedia, the free encyclopedia. |
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Brussels Sprouts. We wish to thank Wikipedia, the free encyclopedia for some of the information, and images on our page. We share information, images, and donate to Wikipedia. The Brussels sprout is a member of the Gemmifera Group of cabbages (Brassica oleracea), grown for its edible buds. The Brussels sprout has long been popular in Brussels, Belgium, and may have originated and gained its name there. Forerunners to modern Brussels sprouts were likely cultivated in Ancient Rome. Brussels sprouts as they are now known were grown possibly as early as the 13th century in what is now Belgium. The first written reference dates to 1587. During the 16th century, they enjoyed a popularity in the southern Netherlands that eventually spread throughout the cooler parts of Northern Europe. Brussels sprouts grow in temperature ranges of 7�24 �C (45�75 �F), with highest yields at 15�18 �C (59�64 �F). Fields are ready for harvest 90 to 180 days after planting. The edible sprouts grow like buds in helical patterns along the side of long, thick stalks of about 24 to 47 inches in height, maturing over several weeks from the lower to the upper part of the stalk. Sprouts may be picked by hand into baskets, in which case several harvests are made of five to 15 sprouts at a time, or by cutting the entire stalk at once for processing, or by mechanical harvester, depending on variety. Each stalk can produce 2.4 to 3.1 pounds, although the commercial yield is about 2.0 pounds per stalk. Harvest season in temperate zones of the northern latitudes is September to March, making Brussels sprout a traditional winter stock vegetable. In the home garden, harvest can be delayed as quality does not suffer from freezing. Sprouts are considered to be sweetest after a frost. Brussels sprouts is in the same species (Brassica oleracea) as a number of other cool season vegetables including kale, cabbage, broccoli, cauliflower, and kohlrabi. Brussels sprouts were, thought to have been domesticated from one ancestral species, the wild cabbage, Brassica oleracea. It is thought (but not known for sure) to be native to the coastal cliffs of the northern Mediterranean and western Europe, from Greece to the British Isles. Wild cabbage has a growth habit typical of many members of the family Brassicaceae (Cruciferae), with broad, spreading leaves and a branched flowering stem (inflorescence) carrying many individual flowers
1. Determine the last expected spring frost date for your area. Plan to plant your brussels sprouts 2 or 3 weeks before the last frost-free date. NOTE: Long days and hot weather in the summer cause brussels sprouts to bolt and go to seed. The most desirable growing temperature is 60� to 70�F. 2. Cultivate your planting area to break up any hard soil, keeping your rows about 12 to 24 inches apart. Brussels sprouts varieties prefer well-draining, loose soils with plenty of organic matter. 3. If a soil test has not been taken, make a preplant application of 5-10-10 at the rate of 3 pounds per 100 square feet. Use a starter solution for transplants, and sidedress cautiously after the first leaves reach about the size of a dime using three tablespoons of 33-0-0 per 10 feet of row). Sidedress cautiously until a large number of brussels sprouts are set. Too much nitrogen before fruit set causes all foliage. After fruit set, fertilize regularly using a complete fertilizer. Soil pH should be between 6.5 and 6.8 for best growth. 4. Purchase certified brussels sprouts seed from your local garden center or nursery. 5. Brussels sprouts should be spaced 1/8 to 3/8 inches deep, � inch apart, in rows 12 to 24 inches apart. Then the brussels sprouts to about 12 - 24 inches apart after they start to grow. Select a well-drained, loamy or sandy loam soil for planting. Avoid areas that have had eggplant, tobacco, pepper or Irish potato planted in the previous year. 6. Apply a layer of organic mulch to help maintain soil temperatures and to prevent weeds from growing. 7. Water your brussels sprouts once or twice a week when the soil feels dry to the touch. Do Not Spray Water On Your Plants. Brussels sprouts have shallow root systems so they only need a light watering to maintain constant soil moisture. But, a few have lateral roots that can penetrate up to 6.6 feet deep. Water sufficiently to moisten the soil to a depth of at least 6 inches. The critical period for moisture is during leaf development. Mulching can help to provide uniform moisture, conserve water and reduce weeds. 8. Monitor your brussels sprouts for disease and pest problems. Brussels sprouts grown by spraying water in Arizona, often suffer from fungal diseases, which can be treated with a fungicide. Control common pests such as snails, potato tubermoth and aphids by sprinkling nontoxic diatomaceous earth around the affected brussels sprouts plants. 9. Brussels sprouts should be ready for harvest in about 49 to 52 days from seed. Some varieties can take longer.
Reduce disease problems by:
Pests Of Brussels Sprouts. In Arizona:
Apply a Bacillus thuringiensis (Bt) based insecticide to control them.
The main disease of brussels sprouts is Clubroot, caused by the fungus Plasmodiophora brassicae. Some of the other more common diseases of brussels sprouts in Arizona include bottom rot caused by Rhizoctonia solani, leaf drop caused by Sclerotinia minor and S. sclerotiorum, downy mildew caused by Bremia lactucae and powdery mildew caused by Erysiphe cichoracearum. Another major disease of brussels sprouts in Arizona is big vein, which is caused by double-stranded ribonucleic acid that is presumed to be a virus-like agent. Fungicides can be effective management tools for brussels sprouts diseases caused by fungi. Treat with an approved fungicide. Neem oil, sulfur, and other fungicides can be used.
Not all insects found in our gardens, & orchards are pests. Many organisms benefit the grower by eating or parasitizing pests in the orchard. These organisms are known as beneficials, natural enemies, or biological control agents. They may be native or introduced from other areas. Beneficial natural enemies (insects and mites) that may occur in our gardens, & orchards could be classified as predators or parasitoids. Predators are those that attack, kill, and feed directly on a pest (prey). Examples of common garden, or orchard predators are ladybeetles, flies, lacewings, wasps, bugs, ants, spiders, and predator mites. Parasitoids are insects that lay eggs on or in a pest (host). The developing larva lives and feeds on the host, parasitizing and eventually killing it. Examples include parasitic wasps such as the egg parasite, Trichogramma sp. Bees are a different class of beneficial insects in the garden or orchard in that they benefit the grower by aiding pollination. It is important that growers are able to recognize, identify, and conserve beneficials in their gardens, & orchards. Conservation of beneficial organisms is a basic tenet of an ecologically sound pest management strategy. Conservation or enhancement of beneficials can be achieved through judicious use of pesticides such as spraying only when and where needed, accurate timing of sprays, and selecting pesticides that are least toxic to beneficials. For Example: Many growers now place colonies of the Blue Orchard Mason bees in their orchards to pollinate their crops for maximum production.
Quick Notes:
Type: The most commonly eaten part of brussels sprouts are typically 2.5�4 cm (0.98�1.6 in) in diameter, and look like miniature cabbages.
Height: About 1 � - 2 � feet tall during the first year of growth. About 2 � feet tall during the second year, when flowering.
Spread: About 1 � - 2 feet wide.
Flowers: May to August. The brussels sprouts plant must advance beyond the juvenile stage of growth, & have received sufficient chilling to induce flowering. Brussels sprouts normally develops a ramified inflorescence, without flower bud development. After a certain period, meristems begin to make flower buds instead of more inflorescences.
The flower buds produce bisexual cross-shaped flowers with four yellow petals, one pistil, six stamens and a two-celled ovary. The cross-shape of the flower petals is the basis for the name Cruciferae, the archaic name of the family Brassicaceae.
Blooming Time: Spring through Fall. They must grow one year to enter the second year, when they bloom.
Fruit: The superior ovary of the flowers develop into fruit called a silique that is a long edible pod 4.5-10 cm long and 3-6 mm wide. Siliques typically contain from 20 to 60 seeds. The mature siliques often dehisce as the pods turn brown at maturity, which occurs 50-90 days after fertilization.
Seed: The seeds ripen from July to September. Upon dehiscence, the siliques separate into two halves releasing seeds that vary in color from the dark to purplish brown. A well-pollinated brussels sprouts plant may produce one-half pound of seed. There are approximately 300 seeds in a gram. They are brown or black that are small and round in shape.
Leaves: Brussels sprouts seedlings have a thin taproot and cordate (heart-shaped) cotyledons. The first leaves produced are ovate (egg-shaped) with a lobed petiole. Most brussels sprouts have thick, alternating leaves, with margins that range from wavy or lobed to highly dissected; some varieties have a waxy bloom on the leaves. Blue-green to dark-green in color. The initial leaves form a rosette shape comprising 7 to 15 leaves, each measuring 10 � 14 inches by 8 � 12 inches; after this, leaves with shorter petioles develop and heads form through the leaves cupping inward.
Many shapes, colors and leaf textures are found in various cultivated varieties of brussels sprouts. Leaf types are generally divided between crinkled-leaf, loose-head savoys, and smooth-leaf firm-head broccoli; while the color spectrum includes white, and a range of greens, and purples. Oblate, round, and pointed shapes are also found
Elevation: 0 - 5,500 feet. Some can grow up to 10,000 feet, but you need to time planting with frosts.
Hardiness:
Soil pH requirements: Ideal Is 6.5 and 6.8. The yield is low at pH below 5 or above 7.
Light: Full Sun to Partial Shade.
Habitat: Mulched areas. Well-drained soil with a 6.5 and 6.8 pH.
Native: Brussels sprouts, Broccoli, Cauliflower, & Cabbage are difficult to trace to their exact origins owing to the many varieties of leafy greens classified as "brassicas." So no-one really knows it's origin. It is said by some to be from Asia Minor, or to the coastal cliffs of the northern Mediterranean and western Europe
Miscellaneous:
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