The fruit/vegetable debate has a long history, and it ultimately had to be resolved by the U.S. Supreme Court in 1893! When we calculate fall planting dates (which are really in the summer), we must account for several factors, such as the time to harvest once the crop is matureand whether a crop is tender or hardy when it comes to frost. Use a hoe to pull a ridge of soil over the seed pieces after you finish planting them and water well. Custom programming and server maintenance by, Read more about starting seeds indoors here, Get more tips for transplanting seedlings, We tend to direct-sow leafy greens such as, Note that garlic is not included in our planting chart. Water well after adding the fertilizer. You can plant potatoes up to two weeks before the last expected frost in your area, but the soil temperature should be at least 45 degrees Fahrenheit when you plant them. If youre a gardener in Washington, russets, the large baking potato, are inexpensive and widely available in grocery stores. Plant flowering bulbs, biennial and perennial flowers, and vegetables that bear crops below ground during the dark, or waning, of the Moon. Potatoes are grown worldwide and are a major staple of the human diet. They take from 90 to 120 days to mature. For most crops that can be started indoors, seeds should be started about 6-8 weeks before your last spring frost date. The long-day onions grown in Washington will start to bulb when there are 14 hours of daylight. At the same time, apply 2 to 3 pounds of 10-10-10 water-soluble fertilizer per 100 square feet. Indoors, you can control these elementsto maximize your plants' early growth and give them the best shotat thriving when they are eventually transplanted outdoors. Youll need about 12 pounds of seed pieces for a row 100 feet long. Keep the water level up; and every week or so change it for fresh. Planting calendars for places in Washington. I usually try to pick out smaller potatoes, around the size of a golf ball. Time your planting so that it falls a week or two Cole crops like broccoli, cauliflower, and cabbage can be direct seeded into your garden around March 23, assuming the ground can be worked, but it's better to start them indoors around February 24 and then transplant them into the garden around April 14. One pound of potatoes should give you six to eight seed pieces. For example, if planting in hardiness zone 5, the last frost date is generally between April 1st April 15th, and the first frost date typically falls between October 16th October 31st. Plant potato eyes with the cut side down and the eye facing up 2 to 3 inches deep and 12 inches apart in rows spaces 30 to 36 inches apart. Planting in late summer for a fall harvest has many benefits (soil is already warm, temperatures are cooler, fewer pests). If it's not yet warm enough to plant outdoors, transplant the seedlings to larger plastic or peat pots indoors and continue care. In Western Washington, potatoes can be planted as late as Aug. 1, with a harvest sometime in November, said Lutovsky. If they are not planted early enough in the spring, bulbing will begin before the plant grows enough to produce a large bulb. The reason for this, is because they are a cool weather crop and can be planted out in very early spring. When planting, you should make sure the soil is moist. Keep them evenly moist through the growing season. These include tender vegetables such as tomatoes, peppers, and eggplant, as well as crops with a long growing season, like broccoli, cauliflower, and brussels sprouts. Our free planting guide calculates the best dates for sowing seeds indoors and outdoors, and for transplanting seedlings to the gardenall customized to your location. All Rights Reserved. Theyre also not vegetables; tomatoes are technically fruits. Once harvested potatoes can be stored in a cool, dry, dark place such as a garage or shed, where they will keep for three to four months or more. As long as they have 3 eyes, they are ready for planting. If youre a gardener in Washington, russets, the large baking potato, are inexpensive and widely available in grocery stores. Lay them on their sides in a fairly shallow pan and fill it with water so the potatoes are about half in the water and put it in front of a window, by the kitchen sink. Dont try to use grocery store potatoes as seed potatoes. When to Plant Potatoes. Tomatoes are a favorite addition to meals ranging from BLTs to salsa to caprese salad. Zones 2a through 6b Plant your potatoes in April and May. How do you grow potatoes in Washington state? Keep in mind 12 pounds of seed potatoes can plant around a 100 row, and yield over 200 pounds of spuds. Most potatoes grown in Washington are grown in large fields of over 100 acres (there are 640 acres in a square mile). Plant onion starts and potatoes around March 5. Potato plants grow from buds found in dimples, called eyes, on the outside of pieces cut from seed potatoes. You may harvest crops once the plant leaves die back. The climatic conditions, rich volcanic soil, abundant water and long growing season result in Washington State producing the highest yield per acre of potatoes in the world. Research-based recommendations in this guide are designed to optimize potato tuber yield and quality in the Columbia Basin and other major Northwest production areas. This gives the plants plenty of time to growlarge and healthy enough to survive their eventual transplantingto the garden. Use our Growing Zone Finder to help you determine which types of plants can be grown in your locale. Potatoes need at least 1 to 2 inches of water each week. Till the soil 8 to 12 inches deep one week before you plant the potatoes. Read more about starting seeds indoors here. Zone 7a Plant from January through March and again in August for a fall crop. You can plant seed potatoes as soon as the ground can be worked in the spring, making sure to choose a sunny location. Apply it 6 to 7 inches deep and 2 to 3 inches to the side of the row where you will plant the potatoes. Timing for all planting is based on first and last frost dates. The best time when to plant potatoes Onions are the perfect vegetable to grow in the pacific northwest garden. Zone 5 Planting Schedule. How To Grow Onions. When growing potato plants (Solanum tuberosum), it is important to keep in mind that potatoes are cool weather vegetables. Zone 3 Planting Schedule. cartons laid end-to-end, they would stretch over 55,000 miles. They originated in the Andes, and come in a variety of types, colors and shapes. Plant annual flowers and vegetables that bear crops above ground during the light, or waxing, of the Moon. You can plant potatoes up to two weeks before the last expected frost in your area, but the soil temperature should be at least 45 degrees Fahrenheit when you plant them. Sunset Western Garden Book; Kathleen Norris Brenzel. Use a hoe to pull a ridge of soil over the seed pieces after you finish planting them and water well. Pick an appropriate time for planting in your climate. Learn which plants thrive in your Hardiness Zone with our new interactive map! To sterilize your knife, soak it for five minutes in a solution of 1 part rubbing alcohol to 1 part of water, then let it air-dry.

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