Skip to main content

Cucumber

Cucumis sativus

Last reviewed: August 2026

Cucumber (Cucumis sativus) is a annual vine. It blooms in June, July, and August. The flowers draw bees.

Cucumber (Cucumis sativus)
Photo: University of Georgia Plant Pathology , University of Georgia, Bugwood.org / Wikimedia Commons (CC BY 3.0)

Cucumber (Cucumis sativus) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org (opens in new tab), last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

full sun

Water

high

Size

12"–72" H × 12"–24" W

Bloom

Jun, Jul, Aug

Pollinators

bees

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Cucumber is an annual vegetable vine that produces edible fruits throughout the summer months. This climbing plant requires support structures and regular watering to thrive. It produces small yellow flowers that attract beneficial pollinators before developing the familiar green cucumbers.

Growing Cucumber

Grow Cucumber in full sun and high water. Mature plants reach 12 to 72 inches tall and spread 12 to 24 inches wide. Expect high maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Cucumber takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Vegetable crops typically not allowed in front yards
  • Vining growth habit can appear unkempt
  • Requires trellising or support structures

Wildlife value

The bright yellow flowers provide nectar for bees and other beneficial insects during summer months. However, as a non-native vegetable crop, it offers limited long-term wildlife habitat value.

Common questions

How much sun does a cucumber plant need?
Cucumber vines produce the most fruit in full sun, needing at least six to eight hours of direct light a day. Some afternoon shade in very hot climates can help reduce leaf stress.
How often should cucumbers be watered?
Cucumis sativus has high water needs and grows best with consistent, even moisture, especially once fruit begins to set. Letting the soil dry out repeatedly often leads to bitter or misshapen fruit.
When do cucumber plants bloom?
Cucumber plants typically flower from June through August, with separate male and female blossoms appearing on the same vine.
What pollinates cucumber flowers?
Bees are the primary pollinators of cucumber flowers, moving pollen from male to female blossoms so fruit can develop. Gardens with low bee activity often see poor fruit set.
Is Cucumber toxic to dogs?
Cucumber is not on the ASPCA Animal Poison Control Center toxic plant list for dogs (aspca.org).
Is Cucumber toxic to cats?
Cucumber is not on the ASPCA Animal Poison Control Center toxic plant list for cats (aspca.org).
Is Cucumber HOA-friendly?
Cucumber takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Cucumber? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Planning a bed around it? Start a free plan with this plant

Not sure where to start? Take the 2-minute yard quiz