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Cucumis sativus

Cucumber

Common names: Slicing cucumber, Pickling cucumber

Cucumber

Photo: Bff · CC BY-SA 3.0 · Source

Description

The cucumber is a warmth-loving climber that grows outdoors on a trellis or, as a pickling cucumber, along the ground. Given enough warmth and water it bears tirelessly for weeks.

Care instructions

Plant it only from mid-May in a warm, sheltered spot and water exclusively with hand-warm water at the root; cold water makes it bitter and encourages mildew. Harvest regularly, because every picked fruit prompts new flowers.

Soil & site

Soil pH

4.0pH 6–78.0

Soil type

humus-rich, well-drained, nutrient-rich, loamy

LightFull sun
HardinessFrost-sensitive
Crop rotationCucurbits
Water needHigh

Feeding

Heavy feeder

Companion planting

Good neighbors

legume family (Fabaceae)

Beans and peas enrich the soil with nitrogen, which cucurbits, as heavy feeders, can make good use of.

For example Broad beanRed CloverRed CloverWhite CloverSweet PeaLupine and 20 more species in the catalogue

Source: classic companion planting (DACH-Gartenpraxis)

Rather not

nightshade family (Solanaceae)

You should avoid planting potato and cucumber together because they share disease pathogens such as leaf and brown rot and stand in each other's way as strong feeders.

For example Sweet pepperEggplantCape gooseberryChiliPeperoniTomatillo and 6 more species in the catalogue

Source: basic crop-rotation rule

Companion planting is partly traditional gardening lore. Where the reason is known, it is given.

Some of these explanations were machine-translated.

Diseases & pests

7 relevant

From the knowledge base, automatically linked by affected species. How to spot and prevent them is covered in full in the lexicon.

DiseasemediumJun–Sep
True powdery mildew

Erysiphales

You will see the true powdery mildew covering the upper leaf surfaces with a milky‑white coating that can be easily wiped off, unlike the false powdery mildew, which comes from below.

More on True powdery mildew
DiseasehighJun–Sep
False Mildew

Peronosporaceae

You will find that the False Mildew is not a true fungus, but an oomycete that comes from the underside of the leaf, unlike the True Mildew.

More on False Mildew
PestmediumMay–Sep
Two-spotted spider mite

Tetranychus urticae

The two-spotted spider mite appears above all in dry heat in the greenhouse and sucks on the underside of the leaves, which makes the leaves first pale and speckled, then dull bronze coloured, before…

More on Two-spotted spider mite
DeficiencymediumApr–Sep
Nitrogen deficiency

Stickstoff-Mangel

Nitrogen deficiency arises when plants cannot take up enough plant available nitrogen from the soil, usually on exhausted or sandy ground.

More on Nitrogen deficiency
PestmediumMay–Sep
Thrips (thunderflies)

Thysanoptera

Thrips are tiny, elongated insects that become particularly active on warm, muggy days, which is why they are also called thunderflies.

More on Thrips (thunderflies)
DeficiencymediumMay–Sep
Drought stress (water shortage)

Wassermangel

Drought stress arises when plants cannot take up enough water over a longer period, usually during persistent heat with no rain.

More on Drought stress (water shortage)
PestmediumMay–Sep
Whitefly

Trialeurodes vaporariorum

The whitefly is a heat loving sap sucker that appears above all in the greenhouse and on container plants: larvae and pupae sit on the undersides of the leaves, and when the plant is knocked the…

More on Whitefly

Varieties

7 varieties
View all 7 varieties

Notes from real gardens

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