Green Beans

Growing Green Beans in Zone 5b

A complete, zone-5b timeline for Green Beans — when to start, transplant, and harvest, tuned to this zone's typical frost dates (Denver, Chicago, Cleveland).

April 30Last spring frost
October 10First fall frost
about 163 daysGrowing season
−20 to −10°FWinter low

Your planting timeline

  1. Direct sowonce soil warms, around April 30
  2. Harvestabout 50–65 days from transplant

Best varieties for zone 5b

Dependable early bush beans like Provider and Bush Blue Lake fit easily, and pole types such as Kentucky Wonder have time to produce a solid crop.

Growing notes

Green beans want even, consistent moisture — about an inch of water per week, and more in heat or while pods are filling. Water deeply at the base once or twice a week rather than a daily sprinkle; this encourages deep roots and steadies plants against dry spells. Keep the foliage as dry as possible and water in the morning to limit rust and other leaf diseases. The most critical windows are flowering and pod-fill: drought stress at bloom makes flowers drop and pods come out short, tough, and stringy. A 2–3 inch straw or shredded-leaf mulch holds moisture and keeps soil temperatures even. Containers dry quickly and may need water daily at the height of summer.

Recommended supplies

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