Growing Cardoon

Cynara cardunculus : Asteraceae / the daisy family

Jan F M A M J J A S O N Dec
      P                

(Best months for growing Cardoon in USA - Zone 5a regions)

  • P = Sow seed
  • Grow in seed trays, and plant out in 4-6 weeks. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 13°C and 25°C. (Show °F/in)
  • Space plants: 50 - 150 cm apart
  • Harvest in 34-35 weeks.
  • Compatible with (can grow beside): Best grown in separate bed.

Your comments and tips

02 Oct 21, Sue (Australia - cool/mountain climate)
Hi Caroline, I found that if I planted Catmint as a border, the deer wouldnt cross it. So saved my garden and had beautiful blue flowers
19 Jan 20, Linda Garland (New Zealand - temperate climate)
If I cut end of season cardoons down to about 10 inches above the grou d will they still send out shoots?
26 Dec 19, colleen (USA - Zone 10b climate)
Can cardoons be grown in a spot that receives afternoon shade? If so, do I still need to blanch the stems?
14 Oct 21, Leslie Trail (USA - Zone 6b climate)
yes you can grow them in the shade. I have had several varieties and some like the shade more than others. You should still blanch the cardoon though. If you do not blanch it you can still use it... I soak my trimmed, cleaned and chopped cardoons in water with vinegar. Then drain and put in a pot with water and a little salt. Then put it on the stove on high until just before it boils. Remove from heat and rinse. After that cook it or can it. This will remove most of the bitter. It tastes great but I imagine I am loosing some of the flavor when I do this. This is especially handy when I am going to harvest them in the middle of the summer since wrapping then in the heat seems to cause a lot of damage to the stocks. Its best to wrap and harvest in the spring or the fall.
28 Jun 18, Margie (USA - Zone 5a climate)
There used to be a clump of cardoons that would come up every year in front of a restaurant in this area. I just found 2 plants at a nursery and am wondering how I can protect them over the winter.
14 Oct 21, Leslie Trail (USA - Zone 6b climate)
You can cut them down to the ground and put some mulch on over them... if it warms up in the winter be sure to give it some water. You can also dig them up in the fall and pot them, then plant in the spring. I found a video on you tube that talked about saving seeds for Cardoons and Artichokes but it had lots of other great info like digging them up and potting.
12 Mar 16, (USA - Zone 5a climate)
The seeds are in the seed catalogue called Seeds of Italy.
03 Feb 12, christopher petersen (Australia - temperate climate)
where can i purchase some cardoon seed
22 Apr 10, Chris@Gardenate (Australia - cool/mountain climate)
Carmen, you probably can't/shouldn't grow cardoon in Australia as it's considered an invasive weed. It's a registered weed in NSW. Not sure about other states.
21 Mar 10, carmen (Australia - cool/mountain climate)
Desperate to buy cardoons seeds. Can you tell me where?
Showing 11 - 20 of 20 comments

I find that SEEDS are much better than potted cardoons. Cardoons have really deep roots -- 5 feet or so -- the cardoon drops its root VERY early in it's growth cycle -- for this reason, I prefer to use seeds. It should be noted that Cardoon requires a uniform supply of moisture. Leaves and stalks become pithy when subjected to water stress, making them unmarketable. About 10-12 inches of water, uniformly distributed throughout its growing period may be necessary. Spineless and spiny types exist. The spineless types are preferred. Named varieties are difficult to find in U.S. seed catalogs. Often the only option is a generic cardoon with no variety mentioned. 'Tenderheart' and 'Gigante' can be found in some current catalogs. One may also search European catalogs. Varieties recently available included Bianco Ameliore, Italian Dwarf, Large Smooth, and White Improved. Any of the above can be considered suitable for trial in the Pacific Northwest.

- Celeste Archer

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