Cardoon: Cynara cardunculus Porto Spineless
Cardoon: Cynara cardunculus Porto Spineless

Cardoon: Cynara cardunculus Porto Spineless

Shipment begins in Spring 2018
SKU: S71491
1 for $7.95
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Quick Facts
Common Name: Cardoon
Hardiness Zone: 7-10S/W Exposure: Sun
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Blooms In: Jun-Sep
Height: 3-4’ Spacing: 4’
Read our Growing Guide Ships as: 1 PINT 28.86 CU IN.
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Shipping Details Shipment begins in mid April 2018, depending on your zone. See shipping tab for details

Product Details

Product Details

With steel-gray, spiked leaves resembling Acanthus, Cardoon is an imposing plant and makes an attractive feature in containers with annuals. Our variety, Cynara cardunculus 'Porto Spineless', is without the prickly spines typical of the species. It is perennial in Zones 7-10, where, late in the season, a central stem forms with flower buds resembling small artichokes.

Cynara is a genus of about 10 species in the Daisy family. The Artichokes, or Chokes, are immature flower buds.  

For more information on growing Cynara, click Growing Guide.




The size of the plants we ship has been selected to reduce the shock of transplanting. For some, this means a large, bareroot crown. Others cannot travel bareroot or transplant best if grown in containers. We ship these perennials and annuals in 1 pint pots, except as noted. We must point out that many perennials will not bloom the first year after planting, but will the following year, amply rewarding your patience. We ship bulbs as dormant, bare bulbs, sometimes with some wood shavings or moss. Shrubs, Roses, vines, and other woody plants may be shipped bareroot or in pots. The size of the pot is noted in the quick facts for each item.


We ship our bulbs and plants at the right time for planting in your area, except as noted, with orders dispatched on a first-come, first-served basis by climate zone. Estimated dates for shipping are indicated in the Shipping Details box for each item. Please refer to the Shipping Details box to determine the earliest shipping time. Unless you specify otherwise, fertilizers, tools, and other non-plant items are shipped with your plants or bulbs. Please supply a street address for delivery. Kindly contact us with two weeks notice, if you'll be away at expected time of delivery.


We guarantee to ship plants that are in prime condition for growing. If your order is damaged or fails to meet your expectations, we will cheerfully replace or refund it. Please contact our Customer Service Department at 1-800-503-9624 or email us at [email protected]. Please include your order number or customer number when contacting us.



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Growing guide

Growing guide

Latin Name Pronunciation: sih-nar'-ah

The species in this genus of thistle-like perennials include Cynara scolymus (the edible Globe Artichoke) as well as C. cardunculus 'Porto Spineless'. The silver-gray, serrated foliage of the spineless variety makes a dramatic statement in borders or containers and attracts beneficial insects. Its violet-blue flower heads with spiny bracts develop branched, wooly stems the second year in the garden (where hardy) and can be picked for fresh or dry arrangements.

Light/Watering: Full sun. Water thoroughly after planting, and then, give a new plant a good soaking once a week during summer, unless rainfall is plentiful (more than 1in per week). Established plants are drought resistant.

Fertilizer/Soil and pH: Average garden soil. We recommend against fertilizing at planting time and during the first growing season in your garden. Plants need time to settle in before being pushed to grow. Most established plants grow best if fertilized with a light hand. We fertilize perennials just once--in early spring--with a light but even coverage of a balanced, granular fertilizer (such 10-10-10 or an organic fertilizer). If a concentrated, water-soluble fertilizer is used, please follow the manufacturers' recommendations carefully.

Continuing Care: Foliage is improved if flower stems are cut off as they appear. Protect from strong winds. In the colder extent of its Zone 7 range, apply a dry winter mulch of pine needles. Slugs and aphids can be a problem.


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