How to Harvest and Store Kale

Kale in garden

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Kale is ready for harvest as soon as the leaves are large enough to eat.  Kale matures 55 to 75 days from seed sowing. It is best grown to mature in spring or fall before temperatures climb into the 70°sF. In mild-winter regions, kale will produce new leaves nearly all winter.

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kale in garden
Kale ready for harvest

When to harvest kale

  • Harvest kale as soon as the leaves are large enough to eat. Pick large, outside kale leaves first; leave the center ones to grow on.
  • Regular harvest and even watering will keep kale plants producing new tender leaves for several months—as long as the weather stays cool.
  • Kale leaves will be sweeter if harvested after frost; cool temperatures cause carbohydrates in the leaves to turn to sugar.
  • Kale can survive but not thrive where winters are cold; plants can withstand temperatures as low as 14°F (-10°C).
  • In hard freeze regions, grow kale under row covers, plastic tunnels, or in cold frames. When temperatures in the teens are predicted, cover plants to keep the leaves from freezing. Still, frozen leaves can be cooked.
  • Kale planted in the spring and grown into the summer will be bitter if hit by summer heat. When summer comes keep roots cool by mulching around plants and make sure plants are well watered; these efforts will improve flavor.

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Kale leaves
Cut kale leaves as needed (called cut-and-come-again) new leaves will grow from the center of the plant.

How to harvest kale

  • Cut kale leaves one by one as needed with garden scissors or knife or cut away the whole head. If you cut kale leaves as needed (called cut-and-come-again) new leaves will grow from the center of the plant.
  • After harvesting kale, wash the leaves thoroughly to remove any soil that may be clinging to the leaves.

How to store kale

  • Kale will store for two to three weeks at 32° to 34°F (0°-4°C) and 90 to 95 percent humidity (moist) with some air circulation.
  • Wrap leaves in a moist cloth or paper towel and store them in a perforated plastic bag in the vegetable crisper of the refrigerator; this will keep leaves from drying.
  • If you cook the whole leaf, the stems will become tender.

Kale articles on Harvest to Table:

How to Plant and Grow Kale

Kale Seed Starting Tips

How to Harvest and Store Kale

Seven Ways to Serve Kale

Garden Planning Books at Amazon:

More harvest tips:

Learn when and how to harvest your favorite vegetables for the best flavor and texture. Get storage tips for each crop. Click on the vegetable you are growing below.

Written by Stephen Albert

Stephen Albert is a horticulturist, master gardener, and certified nurseryman who has taught at the University of California for more than 25 years. He holds graduate degrees from the University of California and the University of Iowa. His books include Vegetable Garden Grower’s Guide, Vegetable Garden Almanac & Planner, Tomato Grower’s Answer Book, and Kitchen Garden Grower’s Guide. His Vegetable Garden Grower’s Masterclass is available online. has more than 10 million visitors each year.

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