It’s a ‘tops and bottoms’ tale when it comes to artichokes. With Jerusalem artichokes, it’s the underground part that we eat, whereas the popular globe artichokes develop their edible parts well above the ground. These two ‘varieties’ are completely unrelated. Globe artichokes (Cynara scolymus) are actually an unopened bud belonging to the Thistle family and, if left to mature, the bud will expand into a rich, purple, thistle-like flower head. The plants can grow up to more than a metre tall and, because of their striking good looks, are often grown as ornamentals.

 Globe artichokes can be grown from seed, shoots or suckers. Suckers are small plants which grow at the base of the plant. Jerusalem artichokes (Helianthus tuberosus) are sunflowers, and while we admire the pretty blooms, it’s the underground tubers we’re interested in harvesting. Grow Jerusalem artichokes from tubers and ensure you have plenty of space as they can grow up to 3m tall.


How to grow artichokes in a garden

  1. Start by preparing the garden bed with organic compost and Yates Thrive Natural Blood & Bone with Seaweed. If soil is acidic, mix in a small amount of Yates Hydrangea Pinking Liquid Lime & Dolomite before planting. 
  2. Sow seeds, suckers or tubers directly where they are to grow, cover lightly with Yates Black Magic Seed Raising Mix, gently firm down and keep moist. Thin seedlings to 60cm apart and feed every two weeks with Yates Thrive Vegie & Herb Liquid Plant Food
  3. If you’ve planted Jerusalem artichokes, in autumn the plants begin to die back and, when they’re completely brown, the harvest can begin. Use your hands to ‘bandicoot’ under the plant bases and pull out the tubers – they look a bit like knotted potatoes. 
  4. If you’ve planted Globe artichokes, they’re generally ready to harvest in spring. Pick the buds when they are firm, but just before they open. Tip: Use a sharp knife to cut the stem and leave a few centimetres of stem. 



How to grow artichokes in a pot

  1. Globe artichokes like to spread, so ensure the pot is 1m wide and at least 30cm deep. Fill pot with Yates Premium Potting Mix and plant.

Growing tips

  • Good drainage is essential. 
  • Water the base, especially early in the day so the leaves have time to dry before nightfall; this will help keep the plants disease free.
  • Artichokes grow slowly and usually take more than a year to get to cropping stage. As they grow, thin out the shoots to leave only the three or four of the strongest. If you don’t do this, you’ll end up with a myriad of weak, small heads.
  • Artichokes are perennials, so they will continue to grow year after year, for up to three or four years. Cut plants back towards the end of autumn and feed with Yates Thrive Natural Seaweed & Fish Plus Fert as the new shoots appear. 

More Plants

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Here's how to grow kūmara in your garden, or in pots if you live in the cooler parts of the country.

New Zealand Yam

NZ Yams have sweet tasting tubers with a hint of tangy lemon. They’re great for roasting, steaming, stir fries, boiling or mashing; you can use them just like potatoes.

Purple Yam

Purple Yams (AKA Ube) are one of the easiest and most productive plant tubers to cultivate. It makes amazing desserts, lending a vibrant purple hue to sweet treats like ube halaya.

Taro

Taro is a versatile vegetable and a staple of many Pacific countries. The corms are white with a purple tint, starchy and easy to digest, making it a great substitute for potato.

Recommended products

Yates Black Magic Seed Raising Mix

Specially formulated for trouble-free seed raising in trays (or outdoor seed sowing direclty into the ground) and propagation of cuttings.

Yates Premium Potting Mix

A premium potting mix, ideal for all potted plants and shrubs, including ornamentals, fruit trees, vegies and herbs.