🥒 Cucumber

Cucumis sativus
94% water, 100% drama if you let it get bitter.
Sun
Full sun, 6–8 hrs
Days to harvest
50–70 days
Spacing
12 inches apart on a trellis; 36 inches apart if letting vines sprawl
Soil pH
6.0–7.0

How to grow

Direct sow after all frost danger, soil 65°F+ — cucumbers germinate fast (3–10 days) and grow faster. Seeds 1 inch deep. Give them a trellis and they'll reward you with straight, clean fruit; let them sprawl and you'll harvest curly cucumbers that look like they lost an argument.

In Florida, spring and late-summer plantings both work; downy mildew pressure is real in humid summers, so morning sun and airflow matter more than anywhere. In cooler zones, black plastic mulch warms soil and speeds early growth. Mulch heavily to keep fruit off soil and moisture even — inconsistent water is what makes cucumbers bitter (cucurbitacin production, the plant's chemical protest).

Water & feeding

Steady, even moisture — about 1 inch per week, more in heat. Drip irrigation or soaker hoses keep leaves dry and mildew at bay. Mix worm castings into the planting hole (a generous handful per plant) and top-dress with a 1/4-inch layer mid-season for a slow nitrogen drip that cucumbers love.

Common problems

  • Cucumber beetles (striped and spotted): row cover until flowering, then remove for pollinators; neem oil and kaolin clay as backup. They spread bacterial wilt, so don't ignore them.
  • Powdery/downy mildew: choose resistant varieties, water at soil level, space for airflow. Milk spray (1:9 milk to water) genuinely suppresses powdery mildew — weird but documented.
  • Bitter fruit: caused by stress — heat, drought, or letting fruit over-mature. Pick small and often; bitterness concentrates at the stem end.

Harvest

Pick young and often — most slicers at 6–8 inches, picklers at 2–4 inches. Check daily; a cucumber left too long turns yellow, seedy, and bitter, and signals the plant to stop producing. Cut (don't yank) to avoid vine damage.

Nerdy fact: Cucumbers are botanically berries — specifically a pepo, the same fruit type as pumpkins and watermelons. Your salad contains berries and nobody told you.

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