Harvest broccoli when the main head is 3 to 6 inches in diameter, and the flower buds are still tightly closed.
Harvest & Storageīroccoli is ready to harvest 50 to 90 days after transplanting, depending on the variety. It is important to have a consistent and uniform moisture supply to produce high-quality broccoli and to have the spring crop mature before summer temperatures arrive. The critical periods for moisture are during stand establishment and head development. Light sprinklings will encourage shallow rooting of the plants. Water sufficiently to moisten the soil to a depth of at least 6 inches. The garden should be watered in the morning so that the foliage is dry before nightfall. Water the garden to provide a uniform moisture supply to the crop. Zack Snipes, ©2020, Clemson Extension Watering
Interveinal chlorosis caused by magnesium deficiency. Repeated applications over a period of weeks may be necessary to correct the deficiency. Correct this deficiency by spraying Epsom salts mixed at two tablespoons per gallon of water directly onto the plant. Magnesium deficiency is a problem on broccoli leaves during cool, wet periods and is characterized by interveinal chlorosis (yellowing between leaf veins) on older leaves. Nitrogen is essential to produce high-quality, productive broccoli plants. More frequent side-dressings may be required throughout the growing season for sandy garden soils or when leaching rains occur. Apply this second fertilization to direct-seeded broccoli when plants reach 6 inches tall. Three to four weeks after transplanting, side-dress established plants with calcium nitrate (15.5-0-0) at 2 pounds per 100 feet of row. In the absence of a soil test, apply 10-10-10 at 2.5 pounds per 100 square feet before planting. Information on soil testing is available in the fact sheet HGIC 1652, Soil Testing.īroccoli is a heavy feeder. Performing a soil test is always the best method to determine the fertilization needs of the crop. Have your garden soil tested several months prior to planting and adjust the soil pH according to soil test recommendations. Soil pH is very important and should be between 5.8 and 6.5 for the best growth. Soils that are well-suited for growing broccoli are fertile, well-drained, and have a texture ranging from sandy loam to clay loam. Lieutenant (60 days after transplant), Belstar (65 days after transplant), and Green Magic (57 days after transplant) are common full-season broccoli varieties with great quality.Emerald Crown (60 days after transplant) is a mainstay mid-season variety.In a planting of Packman, most of the main heads will be ready for harvest at the same time. Packman is an early-season broccoli cultivar (50 days after transplant).Research varieties for proper timing of harvest dates, as well as to help avoid disease and bolting issues.
#Broccoli rabe seedlings full#
Full season varieties can be planted at any point during the planting timeframe. For example, early varieties are planted early in the season and produce very quickly, mid-season varieties are planted mid-season, and late-season varieties are planted towards the end of the planting season. Recommended Cultivarsīroccoli is typically marketed by the time during the season in which it does best. Plant broccoli in rows 3 feet apart with plants spaced 1½ to 2 feet apart within each row. Direct seeding is possible, especially for the fall crop. When growing transplants in the spring, be sure to expose them to sufficient cold to harden them off but protect them from temperatures below freezing. See HGIC 1259, Starting Seeds Indoors for information on starting seed indoors. Transplants can be grown in approximately six to eight weeks for the spring, and in about five to six weeks in the fall. Rapini gets rather bitter.Harvest broccoli (Brassica oleracea, Italica Group) when the main head is 3 to 6 inches in diameter, and the flower buds are tightly closed.īroccoli transplants can be purchased locally, or a gardener may elect to produce their own. Make sure to cut leaves that spread over into neighbouring squares so they don’t shade other plants. Plant out with your spring planting in early April. Set plants 2.5 cm (1″) deeper than they were grown inside the pots. Transplant out when seedlings are 7 cm (3″) high. Hand pick these bright green 2-cm (1″) caterpillars off of the underside of leaves. Keep an eye out for cabbage moth caterpillars (cabbage worms). If the soil is rich and healthy and plants get enough water, the rapini will be very resistant to pests or diseases. Plants grow to on 52-cm (22″) tall.įull sun is best, but will tolerate some shade.
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