One-year-old crowns are preferred, but 2- and 3-year-old crowns are available. Proper time to fertilize asparagus.? Apply 1 pound of granular fertilizer per 100 square feet. Apply nitrogen at least twice a year - once in the spring when growth begins and again at the end of harvest season. For a complete background on how to grow asparagus plants, we recommend starting from the beginning. Work into the soil a small amount of nitrogen fertilizer, such as 34-0-0, at a rate of a few ounces per one-hundred square feet. The Art of Growing Asparagus. Before planting a new asparagus bed, broadcast and spade in or incorporate ¼ pound of nitrogen, phosphate, and potassium per 20 feet of row or as directed by a soil test report. Starting the fourth year, delay application until June or July (immediately after harvest). For established beds, scatter 2 pounds of 10-20-10 fertilizer (or its equivalent) per 20 feet of row before growth begins in the spring, late January, or early February in most areas of Texas. Asparagus Fern Growing Tips & Types of Fertilizers. Asparagus should be fertilized in the spring as spears emerge and again right after the last harvest in June for older plantings. Once established, asparagus is fairly low maintenance with the exception of keeping the area weed free and watering, but what about overwintering asparagus plants? NOTE: This is part 5 in a series of 10 articles. Apply one to two pounds of an all-purpose fertilizer such as 10-10-10 per one-hundred square feet. To harvest, grasp five- to eight-inch long spears at the base and bend them toward the ground. A sunny position, preferably free from strong winds and potential competition from trees should be chosen for the permanent placing of the plants. How to Fertilize & Prepare Your Asparagus Beds in the Spring: Feed Them! But the salt can also break up and damage the soil structure in your planting bed. Managing the asparagus fern: It is important to remember that the asparagus fern is the "factory" that supplies the energy to the crown and storage roots for the next year's crop. For proper fall asparagus care, clean-up should begin after the first frost. Fertilizing Asparagus. After that, fertilizing monthly should be adequate. “The year after planting, asparagus can be harvested several times throughout a three-week period, depending on air temperatures. We have clay soil that was amended when planted. Fertilize Asparagus Before and at Planting. Always … If available, use a nitrogen fertilizer such as 21-0-0 at this time. A bed of asparagus plants provides an abundance of stalks for several weeks and keeps producing for many years. The asparagus harvest season lasts about 6-8 weeks, from early May to late June in Minnesota. A bed of 25 mature plants will produce about 10 pounds of asparagus per year. You may still be reaping the benefits of your summer harvest and have not yet thought about what to plant next. Web. Fertilize the plants each spring for the first three years and in July after the shoots are picked when plants are over three years old. Since this crop will occupy the land for many years you should select and prepare the asparagus bed carefully -- location, soil type, soil fertility, size and age … “Asparagus – An Early Spring Treat.” West Virginia University Extension Service. Fruit from the freezer is good for smoothies, sauces, and most baking projects. An application of 1 to 1.5 pounds of an all-purpose garden fertilizer, such as 10-10-10, per 100 square feet should be adequate. If you want to try the salt, spread it lightly no more than 1 pound of rock salt (NaCl) per square foot or 2.5 lb. Asparagus can also be fertilized after the last harvest in … How to Store Asparagus. When should I fertilize my asparagus bed? Broadcast lime before planting, and 6-12-12 fertilizer or its equivalent before planting and immediately after harvest each year according to the Compost or well rotted manure makes an excellent mulch for asparagus in … In the absence of a test, you can fertilize the soil prior to planting your asparagus. Healthy asparagus plants can produce a reliable harvest for 10 years or more. The reason for this is because asparagus, unlike other vegetables, are perennials that can thrive without being disturbed for a long time – up to 20 years if not more. Asparagus beds should be moist, but not soggy. Salt will kill weeds in an asparagus bed and won’t harm the asparagus plants which can tolerate a saline soil. For over 200 years, Stark Bro's has helped people around America provide delicious home-grown food for their families. Asparagus planting produces for decades – The Smarter Gardener. After the final harvest at the end of the season, the soil will benefit from additional nitrogen. Asparagus performs best in a soil with a pH of 6.5 to 7.5. Asparagus is a great tasting perennial vegetable. A 5-10-10 or 8-24-24 fertilizer formula will work well. The asparagus planting will take a few years to get into full production, so you will not want to move the bed around. I’m learning how to plant asparagus in the garden where I know it can be fresh and most importantly, free. The first 3 years in spring, apply a well-balanced fertilizer. When to Fertilize Asparagus Asparagus should be fertilized prior to planting, in the spring of each season, and following the final harvest. Research shows there is no need to wait two years after planting before harvesting. Treat your newly divided and transplanted asparagus like a brand new planting. 27 Feb. 2014. While the spring top-dressing will feed and add organic matter to the asparagus patch, you’ll get even better results if you feed lightly in early spring and again in mid-summer with a high-phosphorus organic fertilizer, like fish meal, which has a typical N-P-K value of 8-12-2. of mulch to your asparagus bed. A growing legacy since 1816. (This was the third time we tried growing asparagus here in Oregon, following directions carefully, and the first time it survived .) And like all perennials fall clean-up and fertilizing are good practices to incorporate into your seasonal chores. It’s best to feed your asparagus bed every year–about this time. Answer Save. Water Utilization. Grow a soil-building cover crop such as vetch, bell beans, and oat grass and turn the residue into the soil at flowering the spring before planting your crop. ), A Note from Stark Bro's on Coronavirus (COVID-19) ». This will lessen the chances of fungal diseases overwintering in the foliage. Will this manure be absorbed into the asparagus, rendering it unfit for consumption or freezing? (A $50 surcharge will be added for shipments to Alaska. The Best Fruit-Tree Varieties for Organic Growing. The key to good asparagus production is good fertilizer. Fertilize your asparagus fern. You can fertilize your asparagus bed in early spring prior to the emergence of the new spears. Anything that a gardener can do to keep healthy, green fern throughout the post-harvest growing season will increase yield and quality the next season. Proper fertilization further ensures a good asparagus harvest. Plant asparagus as soon as the ground can be worked in the spring. Asparagus fern is used as an ornamental plant in the garden or in a container inside or outside. For asparagus, have your soil tested to determine phosphorus and potassium needs. Asparagus (Asparagus officinalis) is one of the earliest harvested vegetables each spring. . Fertilize the bed with a 1-inch layer of rich, weed-free compost or manure topped with 3 inches of straw, rotted sawdust or another weed-free mulch. Any other tips for growing asparagus are welcome. Web. It's generally a good idea to think about fertilizing asparagus in the hot summer months of July or August. Fertilizing Asparagus Plants. The best soils will have a pH of 6.5 to 7.5. Asparagus grows best on soils with a pH of 6.0-6.5. Asparagus plants are heavy feeders, so be prepared to amend your soil and fertilize regularly. After the last harvest, apply an additional 1 to 2 pounds per 20 feet of row. To understand exactly what additional nutrients asparagus will require, you should always perform a soil test and base the fertilizing decisions on the results. Asparagus is a resilient, perennial crop that produces early in the growing season and can produce for 15 years or more. Cooler weather is around the corner and it is time to start planning your fall garden! Relevance. 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