Growing Rhubarb in Australia: The Complete Guide

Rhubarb is an easy perennial vegetable to grow, needing full–part sun with regular watering.

We get asked about rhubarb often enough that it's worth setting out the full picture here, beyond what fits on our printable card.

Before the how-to, a word on why rhubarb is worth growing in the first place. At a glance, it's rated easy, with a sun of full–part sun; water of regular; soil ph of 6.0–6.8 — details that matter more once you're actually planning around them than they do on a first read. The rest of this article works through exactly what each of those means day to day, in more depth than a single printable card has room for, and with the reasoning behind each recommendation rather than just the recommendation itself.

Climate and Timing Considerations

Australia's climate zones change growing timing more than most general advice accounts for. Cool temperate zones (Tasmania, the Victorian highlands, southern NSW) have recurring frost risk well into what other zones call spring, which compresses the safe planting window for frost-tender plantings. Warm temperate zones (Sydney, Adelaide, Melbourne, Perth) sit closest to what general advice assumes by default. Subtropical zones (Brisbane, northern NSW) rarely see frost at all, and the growing calendar shifts earlier and later as a result. Our site-wide zone setting adjusts the advisory note shown on the Planting Calendar for exactly this reason — worth setting once if you haven't already. The same zone setting also feeds the Harvest Calendar, so both ends of the growing cycle reflect wherever you actually garden, rather than a generic Australia-wide average.

• Cool Temperate (TAS, VIC highlands, southern NSW, ACT): shorter frost-free window — lean toward the later end of any spring planting window shown on the guide above.
• Warm Temperate (Sydney, Adelaide, Melbourne, Perth, coastal NSW/WA): closest match to the general timing shown above; frost is occasional but rarely severe.
• Subtropical (Brisbane, northern NSW, coastal QLD): minimal frost risk — often plantable a few weeks earlier and later than the general window shown above.

Dividing crowns

Every 5–8 years, lift a mature crown and split it into sections, each with at least one healthy bud. Replant shallow — the bud should sit just below the soil surface.

How to Plant Rhubarb

Method. Plant divided crowns with the bud just below the surface — never buried deep.

Soil. Rich, well-drained — heavy feeder. Dig in plenty of aged manure or compost.

Timing. Plant dormant crowns in late winter to early spring.

None of these are difficult individually — the value is in getting all of them right at once.

Ongoing Care

The key things to get right:

• Water deeply and regularly — stalks turn thin and stringy if it dries out.
• Feed generously with compost each spring and again after the main harvest.
• Remove flowering stalks promptly to keep energy in leaf and stalk growth.
• Mulch well to retain moisture and suppress weeds around the crown.

None of these are complicated on their own, but skipping one is a common source of trouble — water deeply and regularly — stalks turn thin and stringy if it dries out. Mulch well to retain moisture and suppress weeds around the crown. Treat this list as a routine to build rather than a one-off checklist, and it becomes second nature within a season or two.

Problems to Watch For

A few things matter most here:

• Crown rot — from waterlogged soil; improve drainage, keep mulch off the crown.
• Slugs and snails — target new spring growth; use barriers or hand-pick at dusk.
• Leaf spot — fungal spotting in humid weather; remove affected leaves.
• Thin stalks — overcrowding, drought, or an ageing crown needing division.

These aren't equally important, but all of them are worth building into your routine — crown rot — from waterlogged soil; improve drainage, keep mulch off the crown. Thin stalks — overcrowding, drought, or an ageing crown needing division. Treat this list as a routine to build rather than a one-off checklist, and it becomes second nature within a season or two.

Harvest and Storage

Signs. Stalks reach 30–40cm and are firm; skip thin, weak ones.

Method. Pull and twist stalks from the base. Never eat the leaves — they're toxic.

Curing. None needed.

Storage. Fridge, wrapped, 1–2 weeks. Freezes well chopped.

Preserving. See Freezing Produce for freezing a harvest surplus.

These few details do most of the actual work, more than any single trick or shortcut would.

Companions & rotation

Our printable card above lists specific plants that pair well nearby and others best avoided, along with a rotation note: Brassicas, Strawberry, None major. Getting this right matters more over multiple seasons than it does in any single one — the benefits and the risks of poor rotation both compound over time rather than showing up immediately.

Related Guides

If rhubarb suits your garden, these related guides in the same category are worth a look too:

• Asparagus
• Globe Artichoke
• Horseradish
• Perennial Leek

That's the full picture behind rhubarb. The printable A4 version of this guide — with the quick-reference gauges and diagram in one page — is available on the main guide page below. If you're planning a whole bed rather than a single plant, our Companion Planting Checker is worth using alongside this guide. As with every guide on this site, this is general information based on our own research and experience, not professional advice — your specific soil, climate, and circumstances will always vary from ours to some degree.

Beyond the printable card, our Planting Calendar and Harvest Calendar tools will show a zone-adjusted note for rhubarb specifically, and the Companion Planting Checker covers the specific pairings mentioned above in more detail.

Frequently Asked Questions

→ View the printable A4 guide for rhubarb