Cucumber

Cucumbers want exactly two things — warmth and even moisture — and most failures trace back to shorting one of them.

Bitterness is a watering problem

Water stress makes cucumbers bitter, pointed, and misshapen (Utah State). The fix is steady, deep watering at soil level — about an inch a week, more in heat. If a bitter fruit slips through, the bitterness concentrates at the stem end and just under the skin, so trimming and peeling rescue it.

Pollination is a numbers game

Cucumbers carry separate male and female flowers, and it takes 8–12 bee visits per flower to set a well-shaped fruit (UMD). Two consequences: don't let row covers linger past first bloom — pull them so pollinators can reach the flowers — and if beetles force you to keep plants covered, grow a parthenocarpic (seedless) variety that fruits without pollination at all.

Trellis them

A trellis earns its keep twice: rows can run closer together, and hanging fruit grows straight instead of curling against the soil. Air moves better through the vines too, which keeps foliage drier.

Beetles are a disease problem

Striped and spotted cucumber beetles do their worst damage indirectly — they carry bacterial wilt, which kills vines outright and has no cure. Early-season beetle control (row covers until flowering, prompt hand-picking) is the real defense.

Pick early, pick often

Frequent harvest keeps vines producing. Oversized fruit turns seedy and tough-skinned, and a vine left holding mature fruit slows down — a well-tended 100-foot row can yield 75–100 pounds (Utah State).