Can you plant cucumbers and kohlrabi together?

Charts say yes. Nobody has tested cucumbers with kohlrabi, as far as we could find. None of the chart entries we found cites a source.

Why we can't give a firm answer

Garden charts recommend it. 4 garden chart entries recommend growing them together. None of them cites a source. Charts pass on gardening tradition; they are not tests.
List of companion plants (uncited entry) (Wikipedia)

What to plant with cucumbers and kohlrabi

Good neighbours of both, best tested first.

LettuceWith cucumbers: 35% more harvestWith kohlrabi: Recommended by garden charts, not tested
OnionWith cucumbers: Helpful plant chemistryWith kohlrabi: Recommended by garden charts, not tested
BeetRecommended by garden charts for both, not tested yet

How each one was tested, with the evidence

What to keep away from cucumbers and kohlrabi

PotatoWith cucumbers: Garden charts advise against it, not tested
BeanWith kohlrabi: Garden charts advise against it, not tested

The evidence in detail

For readers who want to dig in: every chart entry, study and yield trial behind the answer above, with the numbers.

Tradition, research and yield trials

Tradition

Good

avoidgood

4 chart entries: 4 recommend, 0 advise against.

0 cited, 4 uncited.

Research

No papers found on this pair.

Yield trial

No intercropping yield trial.

Untested folklore

Companion plants for both cucumbers and kohlrabi

Plants that are good neighbours of each. Biggest harvest gain first; each cell links to the evidence for that pair.

Plant	With cucumbers	With kohlrabi
Lettuce	Fewer pests35% more harvest from the same spaceField trial, 5 studies. Charts: recommend.Evidence for cucumbers and lettuce	No trial foundNot tested. Charts: recommend.Evidence for kohlrabi and lettuce
Onion	Helpful plant chemistry and bigger combined harvestField trial, 3 studies. Charts: recommend.Evidence for cucumbers and onions	No trial foundNot tested. Charts: recommend.Evidence for kohlrabi and onions

Harvest from the same space compares a bed with both crops against the same area split into single-crop beds, counting the harvest of both crops (the land equivalent ratio in yield trials).

Recommended by garden charts for both, not tested yet

Beet

The evidence, with sources

TraditionGood4 entries

GoodCucumber helps Kohlrabi
Cucumber: helps kohlrabi
List of companion plants (uncited entry) (Wikipedia)
GoodKohlrabi helps Cucumber
Cucumber: helped by Kohlrabi
List of companion plants (uncited entry) (Wikipedia)
GoodKohlrabi helps Cucumber
Kohlrabi: helps cucumbers
List of companion plants (uncited entry) (Wikipedia)
GoodCucumber helps Kohlrabi
Kohlrabi: helped by cucumbers
List of companion plants (uncited entry) (Wikipedia)

Plan a bed with cucumbers and kohlrabi

All neighbours of cucumber and of kohlrabi, or every pair at once in the companion planting chart.

Have you grown cucumbers and kohlrabi together?

Tell other gardeners what happened: spacing, pests, harvest, or ask a question. Reader notes are not checked by us and do not change the verdicts on this page.