How Do I Divide an Artichoke Crown to Get New Plants?

Dividing artichoke crowns — taking rooted offsets from the outside of an established plant — is the simplest and most reliable way to propagate artichokes. Offsets carry the maturity of the parent plant and often produce their first heads in the same or the following season, unlike seed-grown plants which typically take two years. Division also rejuvenates old, overcrowded plants that are declining in productivity.

When to divide

Divide in early spring (March–April) when the new shoots are actively growing and 10–15 cm tall — they have their own root systems at this point and separate cleanly. Division in autumn is also possible (September–October) but offsets have less time to establish before winter. Avoid dividing in summer when the plant is in active head production and the large leaf area makes transplant shock more severe.

How to take an offset

Choose a shoot emerging from the outside of the crown — not the central growth — that is 10–15 cm tall. With a sharp spade or knife, cut vertically down alongside the shoot, severing it from the parent crown together with a piece of the crown plate and as many roots as possible. The offset should have at least 3–5 cm of crown plate tissue attached and visible roots. Remove any large outer leaves to reduce water loss from the offset before it re-establishes.

Replanting

Plant offsets immediately at the same depth they were growing. Firm well and water thoroughly. Keep the offset moist for the first two to three weeks while it re-establishes. A brief wilting period immediately after planting is normal — the plant will recover as roots re-establish. Do not allow to dry out during the first month.

How many offsets to take

Leaving the central growth and two or three outer shoots on the parent plant maintains its productivity. Taking every offset from an old, declining plant (renovation division) is the approach when the parent crown needs complete rejuvenation. In this case, select the three strongest and best-rooted offsets for replanting and discard the rest along with the exhausted central crown.