Kale

Growing Kale in Zone 7a

A complete, zone-7a timeline for Kale — when to start, transplant, and harvest, tuned to this zone's typical frost dates (Richmond, Oklahoma City, Nashville).

April 13Last spring frost
October 24First fall frost
about 194 daysGrowing season
0 to 10°FWinter low

Your planting timeline

  1. Start seeds indoors~5 weeks before last frost (around March 9)
  2. Direct sowonce soil warms, around April 13
  3. Harvestabout 50–75 days from transplant

Best varieties for zone 7a

Most varieties thrive in spring and fall; overwinter hardy Lacinato and Winterbor under frost cloth for fresh winter picking.

Growing notes

Kale wants steady, even moisture — roughly 1 to 1.5 inches of water per week from rain or irrigation. Consistent watering keeps the broad leaves sweet, tender, and fast-growing; let the bed swing dry and the leaves turn tough, fibrous, and bitter while the plant is pushed toward bolting. Water deeply at the base in the morning so the foliage dries quickly, which discourages the downy mildew and leaf spots that settle into kale's crinkled leaves. A few inches of straw or shredded-leaf mulch conserves moisture and keeps the roots cool through warm spells. Container and raised-bed kale dries out fastest and may need watering more often in hot weather, while overwintered plants need far less in cold months.

Recommended supplies

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