Rhubarb grows well in moist soil enriched with plenty of organic matter. Before planting, dig in plenty of compost, well-rotted manure and make sure it is well mulched over summer. Nutritious mulches that breakdown into the soil, such as Lupin Mulch, are ideal.

Position

Grow rhubarb in part shade – morning sun or dappled shade is ideal, as it will not cope with the full hot summer sun in Perth. Plants will wilt and let you know when they need a drink during those hot summer months. If you struggle to find a position that will suit year round, try growing it in a large pot.

Seedling vs Crown

Seedlings can be planted year round but the crowns are only planted during winter. The benefit of crowns over seedlings is that they can be harvested much sooner. Seedlings can take several years to reach a mature size. You can plant the crowns as close to each other as 80cm and plant them so that the top of the crown is just at soil level. Be careful not to plant too deep.

Harvest

The stems are harvested from spring through into summer. Resist the temptation to harvest during the first year, as you want the plants to establish well, meaning more stems in future years. Always make sure when picking the stems to break them away from the crown, pulling downwards. Never cut the stems as this can cause rot and you may lose the whole plant.

Pest and Disease

When given the right conditions, rhubarb is fairly pest and disease free. Keep an eye out for slugs and snails which can damage the new stems. If there is poor air flow and excessively damp conditions, rhubarb can also be affected by fungal diseases, such as mildew.

A note on stem colour: Not all rhubarb produces a deep red stem, this can depend on the variety or the climatic conditions. There is nothing wrong with a greener stemmed rhubarb, it is not ‘unripe’. In fact, the greener varieties are often much sweeter than their more popular red friends!

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Please note that this is intended as general information only. Please ask one of our qualified horticulturists for more specific advice for your situation.