How to Keep Kale from Wilting in the Garden | Gadener's Path (2024)

Kale’s nutritional benefits are well-known, and the leafy green has become a favorite with restaurant chefs and home cooks alike.

Perhaps you love this veggie so much you’ve added it to your garden.

But, oh no! You’re seeing that some of the leaves of your kale plants (Brassica oleracea var. acephala) are wilting!

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What’s causing this and how do you fix it? Read on to learn more!

Timing Is Everything

First and foremost, it’s important to recognize that kale is a cool-weather crop, and its planting should be timed accordingly. It doesn’t like temperatures much above 70°F.

If you’ve planted your fall crop a bit early and Mother Nature has sprung a warm spell on you, you may see a bit of deflation in the heat of the day, but the kale should perk up again as the day cools.

However, if you plant this veggie in May in Texas, for example, you’re going to see some seriously wilting leaves.

Depending on your local climate, of course, you can maybe get in both spring and fall crops. Pay attention to the time-to-harvest information indicated on the back of your seed packet or on the plant pick, if you’ve purchased transplants. Map out your schedule for succession planting accordingly.

Before You Plant

Give your kale plants a solid foundation by preparing an optimal growing environment. This plant appreciates well-drained soil that’s rich in organic matter.

Amend your soil with compost before you plant, and then apply a balanced fertilizer once or twice during the growing season, according to package instructions, to ensure your plants are well-fed.

If you’re planting a spring crop, you may need to plant in an area that is partially shaded in the afternoon or use a floating row cover with a shade cloth, in order to prevent the plants from overheating, which can cause them to wilt.

Fall-planted kale, again depending where you live, can tolerate full sun, and so providing shade isn’t as important.

Water, Water, Water

Kale needs plentiful, consistent moisture – one to two inches of water per week is usually about right. Make sure you have a thick layer of mulch around your plants to help with moisture retention.

If the kale leaves get too dried out, they are likely to wilt.

Additionally, keeping your kale beds weed-free will ensure critical resources such as water are available for the kale, rather than for, say, the dandelions.

Look Out for Pests and Diseases

Certain fungal diseases can cause kale to wilt. Small, dark spots are often the first sign of a fungal infection. If you see these, treat your plants with a fungicide right away.

Thrips can carry a virus that can cause wilt. Treat these pests with insecticidal soap or neem oil. Find more tips for managing a thrip infestation here.