Continuous use of high phosphorus fertilizer such as 10-10-10 or 15-30-15, or high rates of manure or compost can result in phosphorus buildup in the soil that impacts soil and plant health over time. You can learn more about when asparagus grows in my article here. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. Jersey King F1 hybrid - another hybrid hardy even in sub zero weather and will crop for up to 20 years. Common diseases of asparagus include Fusarium crown rot, asparagus rust, and Stemphylium purple spot. Asparagus spears are the part of the plant that goes to harvest but the ferns, crowns and seeds are just as important. Availability: In stock. Choose its spot in the garden carefully. Spears continually emerge from the underground buds on the crown of the plant for several weeks in the spring and summer. If you want to read some of my most popular posts, check out the Best of GreenUpSide page here. The crown and root system can grow to a diameter of 6 feet (1.8 meters) in diameter. Ferns are an important part of asparagus production. Then, dig a 6-12 inch deep furrow (trench) for the crowns to be planted into. With a smooth appearance and nice, even stalks, this type of asparagus is dark green in color and does best in either warm or cool climates. There are many varieties of asparagus to choose from with the most visibly different being the purple varieties. This seems a little contradictory! Use a perennial cover crop mix including species like fescues, perennial ryegrass, and clover that are hardy in Minnesota. Growers planning a new asparagus field should prepare the field in the year prior to planting. Your email address is private. This year the initiative will be dedicated to a special cause: girl child. 'Jersey Knight' is an all male cultivar (female plants are occasionally produced however) that features green spears that are 3/8" in diameter or more. Spears mature into feathery soft, fern-like foliage. The fact it is slightly later is a plus for me as my spears often get nipped by late frost. Crowns should be ordered 3-6 months before planting to ensure that preferred varieties are available. It is widely grown, from Northern Europe to the Pacific Northwest, with 8000 acres in western Michigan alone. If so, please share it with someone who can use the information. and cropping early in the season. Use caution with this step, as large clods of dry soil can break the brittle spears. The stalks themselves grow to approximately ten inches long and they are very meaty and yummy. But that will dry the soil, making it clumpy and harder to work with. Open-pollinated varieties of asparagus contain both male and female plants. Delicate fresh flavor. The yield of open-pollinated varieties is generally lower, and the size and quality of the spears is more variable. Item #305537. Seeds can take three weeks to germinate. Its popular in ancient Egypt as evidenced by a number of tombs with walls decorated with a bunch of asparaguses. Asparagus rust causes yellow and rusty orange spots to form on asparagus stems after harvest. If you can spot the yellow growth somewhere in the fall, you can go back in the spring and look for spears that will likely be growing by then. The Jersey Series asparagus is a hybrid variety of all-male plants and includes Jersey Giant, Jersey Knight, and Jersey Supreme. Dig the furrows to between 8-10 inches deep. It is resistant to rust and is an open As asparagus plants age, they will send up more spears, since it has a larger crown and larger energy reserves. in humus composted soil. It prefers full sun and the plant itself can get up to three feet in height. yield for a non hybrid. What I want is high yield, robust growth and resistant to diseases. They grow well in sandy soils as well as in heavier clay soils. Having said this there are some hybrid varieties that do not produce predominantly male plants but that are well worth planting for their special qualities. It has high levels of anthocyanin, which is an antioxidant, giving it its purple color. Jersey Knight F1 hybrid In Minnesota, asparagus is planted from early May to the first week of June. learn more about Grande Hybrid asparagus from Gurneys. Begin harvest two years after planting crowns, three years after planting seeds. Model #NURSERY. Use caution with this step, as large clods of dry soil can break the brittle spears. - this variety is a good choice for cold climates although it is Good soil moisture is important at planting for good root and fern growth. The Jersey Series asparagus is a hybrid variety of all-male plants and includes Jersey Giant, Jersey Knight, and Jersey Supreme. Roundup) in and around asparagus at certain times in the season. Good soil drainage. Millennium: A newer variety from the University of Guelph. Then again, they are slightly later to emerge. Others are all-male, meaning they wont produce berries but they will produce more spears than female plants! A very productive plant: yields 2-4 times more spears than older varieties. Click here to schedule a time to visit with us at theshow! It can grow in most types of climates and it can be harvested once the stalks are pencil-thin. Their spears are very thick and they are a perennial plant so you can enjoy them for many years to come. You should also be aware that all-male is still at best 75%. Other very important factors which vary according to the variety include flavour, tenderness, time of growth, suitability to different soils and climates and yield per plant. Read the label of the herbicide carefully before applying it to ensure that it is permitted for use in asparagus, and follow all label instructions for application. with medium diameter stalks which are best harvested when they are about Additionally, soils covered in mulch will retain more water. It is longer and thinner than its cultivated cousins and has a more delicate taste as well. Eros F1 hybrid - The large purple green spears originate from Italy. The cost to establish an asparagus field is substantial, so growers should have a robust management plan in place before planting. 5 Asparagus Crown,Jersey Knight 2 Year Roots,Large,green spears tipped,Vegetable. learn more about how big asparagus plants get in my article here. After that, the spears become tough and fibrous as they start to fern out. It was developed by Rutgers University in New Jersey as part of the Jersey series, yielding mostly male plants. learn more about Jersey Supreme asparagus from Stark Brothers. It also tends to grow larger crops the older it is; by the fourth season, you should see a very large and full crop. The best asparagus varieties to grow are: Conovers Colossal, Erasmus, Grande Hybrid, Jersey Giant, Jersey Knight, Jersey Supreme, Mary Washington, Millenium, Purple Passion, & Spartacus. one source tells us that this all male hybrid has flavoursome tender might want to look out for combination offers where you buy typically 5 While all the Jersey varieties as well as Mellenium and even Purple Passion routinely surpass the old varieties of Martha and Mary Washington they still require good soil, proper spacing, sufficient and timely nutrient and water support, and careful pest control. I am about to order replacements so I reading more about Mellenium . This pale green, disease-resistant asparagus is both male and female. When started from crowns, asparagus is ready for harvest 2 to 3 years after planting. Typical cost 15 for 10 It was bred by crossing two different varieties of asparagus, the 'Jersey Giant' and the classic heirloom 'Mary Washington'. January 06, 2021 In summary: The producer of asparagus crowns for asparagus varieties Jersey Giant, Jersey Knight, and Jersey Supreme has stopped propagating these varieties. Predominantly male, produces high yields, and . Do not let the crowns dry out between placing them in the furrows and covering them with soil. . Do not allow the tool to penetrate the soil more than an inch deep, to avoid harming the underground portions of the plants. In heavy clay soils, make the furrows more shallow (6-8 inches) and deeper (10-12 inches) for very sandy soil. Avoid planting asparagus in heavy clay soil. The name of the asparagus means in part early so if you arent very patient, you wont have to wait very long for this type of asparagus to be harvested from your garden. In the first year of harvest, only pick asparagus for two weeks. It is Best In Zones 3 - 9 Description: 1 Year old crowns Jersey Giant produces the largest spears. Hand removal is also the safest way to keep weeds out of the rows during the harvest season (May-June). However, these mulches also keep the soil cooler and wetter, potentially delaying or reducing asparagus spear emergence in the spring. another Dutch variety not quite as highly recommended as the Gijnlim. Their stalks are medium to large in diameter and they have tints of purple at the very tips. Well adapted to the South. The spears are very very tender and are purple when harvested. Although many people believe that thinner and younger asparagus is more tender, it is actually just the opposite. varieties of pacific 2000 one for spring and one for autumn planting. The Jersey Knight is resistant to many diseases including rust, crown rot, and fusarium wilt, among others. Jersey King or Jersey Knight although not quite so many as Jersey King. Asparagus is a unique crop. While annual vegetable crops can be moved if the first planting site doesn't work, asparagus cannot. It is resistant to rust and fusarium wilt and it does best in growing zones 3-8. Description Huge crops! I'm in Zone 6, temperate or cold? Asparagus spears are a delight to harvest in spring. support@foodgardening.mequoda.com. Nothing says summer like biting into a cool cucumber fresh from the vine. Immediately after laying the crowns in the furrows, cover them by back-filling the furrow with 2-3 inches of soil. It goes dormant earlier in the fall and wakes up more slowly in the spring, reducing the risk of late fall and early spring frost damage. Next, cover the crowns with 2-3 inches of the soil that was removed from the furrow previously. This also has potential implications for asparagus beetle; ferns that go dormant earlier in the fall may be cut earlier, reducing the risk of asparagus beetle overwintering. 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