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Rhubarb

Rheum x hybridum

Polygonaceae
First harvest: Year 2
Spacing: 75 × 90 cm
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When to plant rhubarb in Australia

Plant rhubarb crowns in winter, June to September depending on zone. It does best in cool and temperate climates with a proper winter dormancy; not suited to arid or tropical zones, and even in subtropical areas it performs best in the cooler pockets. Avoid harvesting at all in the first year — let the crown establish, then pick lightly from year two.

Growing guide

Sunlight

4–6 hours direct sun per day

Watering

Medium — water when topsoil feels dry

Spacing

75cm between plants, 90cm between rows

Frost tolerance

Hardy — tolerates frost

Frequently asked

How long before I can harvest rhubarb?
Avoid harvesting entirely in the first year to let the crown establish. Pick lightly from year two, with a full harvest from year three.
Is rhubarb safe to eat?
Only the stalks. The leaves contain oxalic acid and should never be eaten, regardless of climate or variety.
Can rhubarb grow in a warm climate?
It struggles in true heat — not suited to arid or tropical zones, and even in subtropical areas it does best in cooler pockets with a shorter season.
What pests affect rhubarb?
Slugs and snails target young shoots in early spring — protect emerging growth with barriers or traps.

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