How to Plant and Care for Artichokes

Written by Caitlin Havener Rogers — Certified Precision Nutrition Coach

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Artichokes have a way of making a garden feel like something special. Their bold, architectural leaves fan out in dramatic silver-green waves, and when the flower buds finally form, that satisfying globe shape at the top of each stalk feels genuinely rewarding. What you’re actually harvesting when you pick an artichoke is an unopened flower bud, which makes the whole growing experience feel just a little bit magical, honestly.

Globe artichoke is an heirloom vegetable grown for its tender, edible flower buds. With their large, silvery-green leaves and thick stems topped with pinecone-like flower buds, artichoke plants add a strong architectural element to vegetable garden plantings. Whether you’re growing them for the kitchen or just for the sheer joy of watching something bold and beautiful take over a garden bed, getting started is more approachable than most people expect.

Understanding Artichoke Growing Zones and Climate

The ideal artichoke growing zone is 7 to 10, though many gardeners in zones 5 and 6 have success as well. It’s possible to grow artichokes as annuals in colder zones, but they don’t produce optimally until their second year of life. That said, gardeners in colder climates have been finding clever workarounds, so a challenging zone doesn’t have to mean giving up entirely.

Artichoke plants thrive best where mild winters and cool, foggy summers prevail. In such growing conditions, they are perennials, yielding harvests for up to five years. Artichokes grow best in areas with long mild winters and cool summers. They do not grow well where the summers are sweltering, and where winters are cold and the ground freezes, artichokes must be replanted each year.

Choosing the Right Artichoke Variety

Varieties such as Green Globe, Imperial Star, Symphony, and Green Globe Improved, or purple-budded selections such as Opera, Tempo, and Concerto, are perfect for warm-climate artichoke growers. Each variety brings something slightly different to the table, from bud size to cold tolerance to how quickly it matures.

Imperial Star is bred for annual production the first year from seed and is the best globe artichoke for gardeners in zones 1 through 6. It produces six to eight mature buds, each three to four inches in diameter. It has high resistance to many diseases and doesn’t require a long growing season. One of the main reasons to grow Imperial Star is that it’s a cool-season cultivar that does well both as an annual and a perennial.

Starting Artichokes from Seed or Shoots

Artichokes can be started from seeds, from rooted shoots taken from growing plants, or from dormant roots. Start seeds indoors in late winter or early spring, about eight to ten weeks before planting outside. Soak the seeds in warm water before sowing in trays or pots. Placing the trays in a warm, well-lit spot helps them germinate steadily without any fuss.

With artichokes, you can also replant a shoot. Gently clear away some soil to reveal the plant’s roots. Using a sharp knife, cut off the shoots along with their roots. Make sure the shoots are at least eight inches in length. This approach is handy once you’ve already got an established plant doing well, and it’s a great way to expand your patch without buying anything new.

Preparing the Soil Before Planting

Globe artichoke produces best in deep, fertile, well-drained soil, but will grow in a wide range of soils. The plant’s deep roots need relatively deep soils with adequate volume for root development. Sandy soils with excessive drainage should be avoided. Think of it this way: the richer and more hospitable the soil feels, the more generously the plant will produce.

Make sure the soil has been improved with well-rotted organic matter, as these plants will be in for several years and will need a good root system. They are a Mediterranean vegetable, so they need a well-drained spot; incorporate grit if you are worried about waterlogging. Artichokes are heavy feeders. Before planting each plant, mix a shovel of compost or aged manure into the soil.

How and When to Plant Artichokes Outside

Plant seedlings and shoots in the garden in the spring after the last spring frost. Dormant roots can be planted in the fall or winter in frost-free regions. Timing really does matter here because a late frost hitting young transplants can set them back significantly, especially if you’ve been patiently nursing seedlings on a windowsill for weeks.

Space each plant three to four feet apart in rows and leave four to five feet between the rows. Plant the shoots and dormant roots about six inches deep. The tops should be above ground level. If artichokes are perennial to your region, think long term about where to plant them because they’ll grow in that spot for up to five years. Choosing the right permanent spot from the start saves a lot of hassle later.

Watering and Fertilizing Throughout the Season

Water frequently during the year by supplying one to two inches per week in several applications. Use drip irrigation if possible. Too little water, especially during the bud development period, results in poorly developed buds. Because artichokes are prone to root rots, avoid soil saturation, especially around the crown. Drip or furrow irrigation on raised beds, instead of using sprinklers, will keep your soils well drained and protect against rot.

Artichoke requires high amounts of nitrogen fertilizer for best growth and development. Apply two teaspoons per plant of a nitrogen-based fertilizer every four weeks beginning four weeks after transplanting to encourage sustained and rapid plant growth. Place the fertilizer to the side of the plant and irrigate it into the soil. Avoid letting the fertilizer come into contact with the plant stems to avoid burning.

Mulching and Weed Control

Mulch heavily around the plants with an organic mulch like compost, grass clippings, or straw to conserve soil moisture and reduce weed growth. Mulches help keep the soil cool. Artichoke has a shallow root system, does not tolerate hot dry conditions, and likes moist soils if high productivity is expected.

Block weeds and retain soil moisture by adding a four-inch layer of mulch made from organic material such as straw, dry grass clippings, or aged manure to prevent weeds. Once buds start to form, remove the mulch and add a four-inch layer of compost. That swap from mulch to compost right at bud-formation time is a small detail that makes a real difference in the quality of your harvest.

Common Pests and Diseases to Watch For

Artichoke plume moth can cause dark trails as larvae eat into the buds. Aphids, ants, earwigs, slugs, and snails can also bother artichokes. Aphids are super common on all kinds of plants. On artichokes, they cause yellow stippling on the leaves and stunted growth if there are enough of them.

Powdery mildew, Verticillium wilt, and botrytis rot are common during rainy weather. Curly dwarf virus and bacterial crown rot are other artichoke diseases. All of these diseases can become a severe threat in dense and poorly aerated plantations, in monoculture, and when environmental conditions are favorable for the growth and transmission of the pathogens. Good spacing and airflow are your first line of defense.

Harvesting Artichokes at the Right Time

Artichokes are ready to harvest in about 110 to 120 days after planting. The artichokes are ready to harvest when the buds are firm and tight, and the scales begin to separate. Harvest buds when they reach full size but before the bracts begin to open. Cut off the bud with two to three inches of stem.

Artichokes can be sensitive to too much or too little soil moisture, resulting in stunted buds or rotted roots. Artichokes left on the plant too long will be tough and have a bitter, pungent taste. After the spring crop has been harvested, cut the flowering stalks down to the base of the plant to encourage a subsequent crop in the late summer or fall.

Overwintering and Long-Term Plant Care

When temperatures cool off in late summer and fall, the plants will start growing again and you may get a second harvest. In cooler regions, after the fall harvest, cut the plants back to about six inches and cover the crowns of the plant with leaves. For extra winter protection, add an additional foot of straw on top. Remove the straw and leaves after the last frost in the spring.

Once the plants are three to five years old the root balls can get quite compacted. To keep them going strong, dig them out in late fall, divide them, and replant in the garden if you have mild winters, or store them in a dark, cool dry place until you’re ready to plant them again in spring. Plants can continue to produce for five to ten years, beginning in their second year, until production declines and the plant needs to be replaced. With a little seasonal attention, a single well-placed artichoke plant can become one of the most rewarding perennials in the whole garden.