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Vegetable Crop Calendars (A–C)Endive Planting Calendar
Endive is a cool-season salad green that does its best work in the shortening days of fall, so the calendar leans toward late summer sowing.
Key points
- Endive prefers cool weather and bolts in heat.
- Count back from first fall frost for the main crop.
- Keep the seedbed cool in summer.
- Blanching is optional.
- Keep moisture even and watch for slugs.
What are endive and escarole?
Endive and escarole are close relatives in the chicory family. Curly endive has frilly leaves, and escarole has broader, smoother ones. Both have a bitter edge that softens in cool weather and sharpens in heat, and both are often used as salad or cooked greens.
That temperature response is the reason the calendar matters so much.
Because the leaves taste stronger than lettuce, small amounts go a long way at first. Many gardeners mix young leaves with milder greens and use mature leaves in cooked dishes. Escarole's broad leaves tend to be milder than curly endive, which makes it a gentler place to start. Try one type first, then add the other once you know how the crop behaves in your garden.
When should you plant in spring?
Spring plantings can work, but they are riskier because endive may bolt in lengthening days and warm weather. If you plant in spring, start early with transplants or seed as soon as soil can be worked, and choose varieties your extension office suggests for spring.
Many gardeners skip spring endive and plant it for fall, when growing conditions are better.
If you are unsure about your timing, sow two small batches a couple of weeks apart. The difference between them shows how sensitive your site is to heat and day length. If spring is your only chance, pick the earliest workable week and plan to harvest young leaves quickly, before warm weather turns them bitter. Treat the planting as a short sprint.
When is the best fall window?
Count back from your first fall frost. Use the days to maturity on the seed packet, and add a margin because growth slows in short days. Sowing in midsummer or late summer lets plants grow into cooling weather.
For example, if your first hard frost usually falls in late October, you would work backward from that date to find your sowing window. This is an illustration, so use your own frost records.
Seed germination can be poor in hot soil. Keep the seedbed moist and shaded, or start seed indoors and transplant. If summer sowing is difficult because soil is hot and dry, start seed in trays in a shaded spot and transplant when seedlings have a few true leaves. Water them in well and shade them for a day or two.
- Find your average first fall frost date.
- Subtract days to maturity and a margin.
- Keep the seedbed cool and moist in summer.
- Transplant on a cloudy day if possible.
What about blanching?
Blanching means keeping light from the inner leaves so they turn pale and milder. Gardeners tie the outer leaves loosely over the heart a couple of weeks before harvest, or cover the plant with a pot or board. Do this only when plants are dry, because wet leaves rot when tied up.
Blanching is optional. Many gardeners enjoy the stronger flavor of unblanched leaves.
When blanching, check the plant every few days. A heart that stays wet under tied leaves can rot, so open the cover if the weather turns damp.
How do you care for it in the garden?
Endive likes fertile soil, even moisture and good drainage. A soil test shows what the bed needs, and your extension office can interpret the results. Nutrient management rules vary by state, so follow local recommendations.
Thin seedlings to the spacing in your guide. Crowded plants hold moisture and invite rot. Mulch keeps soil cool in late summer.
Water at the base in the morning and keep leaves as dry as you can, which reduces rot and tip burn in dense plantings. Pick outer leaves or cut whole heads when they reach a good size, and do not let plants stand in warm weather once they reach maturity. Quality drops quickly after that point.
What problems affect endive?
Slugs, aphids and tip burn in warm weather are common. Remove hiding places for slugs and scout plants often. Rotation lowers disease pressure.
If a pesticide is ever considered, read the label, observe the pre-harvest interval, protect pollinators and check licensing rules. Ask your extension office what is active in your area.
Rotate with crops outside the lettuce and chicory family, and clear plant debris after harvest. After harvest, work plant residue into the bed or add it to a hot compost pile, so slugs and disease lose their shelter.
Sources and further reading
Last reviewed: November 2026. Educational information, ranges only. Confirm timing with your county extension office.