Artichokes and nutrition. They need a well-draining, loamy soil with a good amount of organic matter. Aphids Plants need 10-12 days of temperatures below 50 degrees to stimulate budding. Discover (and save!) Harvest Click photos to see a full-size version. Right click and save image to download. Small bugs may be visible on underside of leaves, but are also evidenced by honeydew deposits on leaves and by curling leaves and stunted plant growth. Start seeds indoors (late January/ early February), We recommend Green Globe, Imperial Star and Emerald, Uncover overwintered plants in April if you cut them back, In May or June purchase plants from a nursery, Fertilize transplants with organic 5-1-1 mix, Plant out transplants or purchased crowns after danger of frost, but with cool days left, Treat for aphids and earwigs if in evidence, Remove spent stems to allow replacement growth, Mulch beds or cover plants. Artichokes grown at home are tastier with much more tender flesh that no store-bought produce can match. An artichoke will produce well for about three or four years, Myers said. If left to bloom the head will flower like a giant thistle but this will reduce future crops. Look for the long, thin green caterpillars themselves and for the small holes they eat in leaves and white or pale green eggs laid on underside of leaves. I have had some experience growing globe artichokes. About the OSU Extension Service: The Oregon State University Extension Service shares research-based knowledge with people and communities in Oregon’s 36 counties. Also, assure that the tall, leafy plants will not shade other beds. OSU Extension addresses issues that matter to urban and rural Oregonians. Artichokes are sun-loving big plants, so plant in full sun in rich, sandy soil with plenty of room between plants. Location. Caring for Artichoke. OSU Extension’s partnerships and programs contribute to a healthy, prosperous and sustainable future for Oregon. Some plants won’t bud until their second year, but others will provide a light crop the first year. As you know, this is not really the best climate for growing and over-wintering the plants as they are not winter-hardy in our zone. Flush out aphids by submerging cut buds in warm salt water. Cabbage loopers The truth is, artichokes are not an easy crop, they take up alot of room and the results are usually poor in most parts of the world. Uncover them in April. However, I advise against thinning the plant in the summer. Treat with Neem oil or insecticidal soap spray. After that, it's best to dig and divide it as it produces off-shoot plants that may crowd the original plant. Choose a spot where your artichoke will establish itself. "In the fall, cut back your artichoke plant and mulch it with a covering of leaves or straw. I have 27 artichokes that I planted in May which were purchased from a nursery. In the wet northwest climate, bacterial crown-rot may be a bigger problem than insects. The buds will taste best if still tightly closed; they become tough and dry as they age. Good drainage is essential to prevent crown-rot. This may have to be provided by some irrigation. They are perennials in the northwest, if carefully mulched or otherwise protected over the winter. It chews holes in young leaves, stems and buds in the spring. In May or June, it's best to purchase starts from your local nursery or mail-order catalog. Artichokes can be planted from seed, though it is usually easier to buy established plants or rootstock from your local nursery. I planted them in rows on hills in a staggered pattern every six feet. Artichoke plume moth Prevent by avoiding over-crowding and by assuring that bed is well-drained. Watering . "Space them 3 to 5 feet apart, and when planning your garden, think about the shade they will cast. Artichoke Cynara scolymus ... *Green Globe‐ The most common variety grown commercially. Treat by hand-picking or with Bacillus thuringiensis (BT). Summer. Water and mulch regularly.". Artichoke starts need deep, well-amended soil in full sun. Figure on 4-6 plants for a family. Growing the Best Artichokes in Oregon, Washington and British Columbia. In a mild winter a large bucket will protect plants during a short cold snap, Covering with a small cloche will also keep plants happy but insulate with an old blanket or tarp during cold periods. Mulch well to conserve moisture. Water Read on to learn more about these plants. CORVALLIS, Ore. – With deeply lobed silver leaves and a 3-foot stature, the artichoke unfolds as much mystery in the garden as it does on the dinner table. Water is the key to tender artichoke buds that are meaty and flavorful. Artichoke plants need renewing every 4-5 years – either divide from an existing plant or start fresh. By mid-summer, the artichoke plant should send up flower buds. Bacterial crown-rot "For something unusual, try growing Violetto," Myers said. The fiber helps lower bad cholesterol; folic acid, vitamin C and other antioxidants fight free radicals (agents of aging!) They need full sun to do well. With their 2-3 foot long arched silvery leaves, they are a beautiful and unusual-looking addition to the garden. Designed by Elegant Themes | Powered by WordPress. In very wet climates, gray mold may affect leaves and buds. Avoid waterlogged soil, since too much moisture is about the only thing that will kill your Jerusalem artichokes. Space them 3 to 5 feet apart. For the more willing, it’s best to start them indoors 8 weeks before the last frost. Mulch beds or cover plants. Artichokes on the coast in Southern Oregon. 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