About Cucumber
Cucumber is a warm-season vine that needs pollinators, warm soil, and room to sprawl. Pest-trap flowers and radish markers work well at bed edges.
Subtropical melons need the longest frost-free window — see Heat Lover guild overlap.
Good companions
Plants that pair well with Cucumber — tap for their guides. Cited sources appear where research is linked in the matrix.
Listed as beneficial in the matrix — open the grid for full context.
CornListed as beneficial in the matrix — open the grid for full context.
PeaListed as beneficial in the matrix — open the grid for full context.
RadishListed as beneficial in the matrix — open the grid for full context.
Nasturtium Trap cropNasturtiums lure aphids and cucumber beetles away from cucumber vines when planted as a border.
Sunflower CompetitionSunflowers can shade cucumbers excessively and both compete for water in dry North Island summers.
LettuceListed as beneficial in the matrix — open the grid for full context.
DillListed as beneficial in the matrix — open the grid for full context.
AgeratumListed as beneficial in the matrix — open the grid for full context.
AlyssumListed as beneficial in the matrix — open the grid for full context.
Black-Eyed SusanListed as beneficial in the matrix — open the grid for full context.
BuckwheatListed as beneficial in the matrix — open the grid for full context.
Coneflower (Echinacea)Listed as beneficial in the matrix — open the grid for full context.
CoreopsisListed as beneficial in the matrix — open the grid for full context.
PhaceliaListed as beneficial in the matrix — open the grid for full context.
+ 6 more in the matrix
Avoid planting together
Known poor neighbours — spacing apart or rotating beds reduces shared pest and disease pressure.
Listed as incompatible in the matrix — open the grid for full context.
Sage Growth inhibitionSage prefers dry conditions and may inhibit cucumber growth when roots compete in the same bed.
Basil Shared pestBasil and cucumber both attract pests when overcrowded; some guides advise separation to reduce shared aphid pressure.
CauliflowerListed as incompatible in the matrix — open the grid for full context.
Growing tips
- Hand-pollinate if fruit sets poorly — pollinator strips within 10 m help.
- Powdery mildew: improve airflow; water at soil level, not on leaves.
- Fast radishes can mark rows before slow cucurbit germination.
Use the compatibility matrix
Filter to Cucumber to see green (beneficial), red (incompatible), and grey (neutral) for every pair among 162 plants. Desktop: hover cells. Mobile: tap for details.