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Australia plant library · vegetable

Cucumber

Cucumis sativus · Cucurbitaceae

Easy summer climber for salads and pickling.

Cucumber

Photo: H. Zell, CC BY-SA 3.0, via Wikimedia Commons

Sun
Full sun.
Soil
Warm, rich and well-drained.
Soil pH
About 6.0-7.0.
Water
Regular, consistent moisture.
Hardiness
Frost-tender; all Australian climate zones.
Height and spread
Vines about 1.8-3 m when trellised (bush types smaller).

Guv's tipTrain cucumbers on a trellis or support, keep the moisture consistent, and pick them young and often. Simple as that.

Through the year

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sow or plant

Timings are for temperate Australia. Tropical and arid gardens follow different seasons.

When to plant

Temperate and cool areas: spring after frost (Tasmania Oct-Jan). Subtropics: from mid-winter. Tropics: late summer to early spring (avoid the wet season).

Harvest or flowering

7-12 weeks from planting; pick young and often.

Pruning

Train on a trellis or support.

Making more plants

Seed.

Watch out for

Pest

Whitefly

Look for: Tiny white flying insects under leaves; sticky honeydew; leaf yellowing.

What to do: Yellow sticky traps, insecticidal soap or a registered pyrethrum spray applied to leaf undersides.

Disease

Powdery mildew

Fungal (powdery mildew fungi).

Look for: White powdery spots or coating on leaves and stems.

What to do: Give good airflow and sun, water at soil level, remove badly affected leaves, and use a registered fungicide (e.g. sulfur) if needed.

Always read and follow the label on any treatment, and check it is approved for use where you live.

Safety and spread

Pets and people: Non-toxic to dogs, cats and horses (ASPCA); generally safe for dogs.

Weed risk: Not listed as a weed on Weeds Australia or the Queensland restricted invasive plant list.

Checked against two or more reputable gardening sources. How we check our facts

Growing somewhere else? See this plant for the UK and the USA.

Keep it by the back door

The Plant Doctor and the Guv's book

Printable pest and disease charts with real photographs, and all 50 Australia plants in one book.

The Plant Doctor coverLooking After Your Plants cover