Vegetable Seedling Identification: Pictures and Descriptions

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How to Tell Vegetable Seedlings from Weeds

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When plants are very young and just tiny seedlings, it can be difficult to tell vegetables apart from weeds. Here’s a guide to identifying some of the most common vegetable seedlings—with pictures!

When weeds really kick into action (usually by late spring/early summer), it can be challenging to identify a vegetable seedling from a weed seedling! This is a visual aid to help.

If you see a weed in your vegetable plot, the most effective way to weed is to use a hoe in the morning in dry weather so that weeds will cut cleanly from the soil.

First Leaves vs. True Leaves

The first two leaves that many vegetable seedlings put forth are called cotyledons (seed leaves), which do not pattern themselves after the leaves of the mature plant. They mainly serve as “snack packs”—energy bars for the infant plant to consume so that it can put forth its own true leaves.

While your seedlings sport their early cotyledons, it can indeed be difficult to distinguish them from each other and from the weeds!

After the true leaves emerge, which can take several weeks, you’ll be able to spot more differences between seedlings as they take on the special shape and form of their kind.

The cotyledons, having served their purpose, will eventually die off.

Vegetable Seedling Identification: Pictures and Descriptions

Here’s a quick visual guide to some of the easiest vegetables to grow from seed.

Bean Seedlings (Pole and Bush)

The bean seedling’s first seed leaves often appear to be heart-shaped. Its true leaves will be smooth-edged and arranged three to a stem, with two opposite each other and one above. Learn how to grow beans.

Bean seedling
Bean seedling

Beet Seedlings

With proper watering, beet seedlings will emerge in five days to two weeks after planting. Young beets put smooth, oblong green leaves on red or pinkish/purple stems. Because several seedlings can grow from one beet “seed,” you may need to thin them by snipping some off at ground level. Learn how to grow beets.

Beet seedling, by Tepeyac (Own Work) via Wikimedia Commons
Beet seedlings. Photo by Tepeyac (Own Work) via Wikimedia Commons.

Broccoli (and Cauliflower) Seedlings

Broccoli and cauliflower seedlings produce two kidney-shaped seed leaves before their true leaves, which are more rounded and may have vaguely serrated edges. Learn how to grow broccoli and cauliflower.

Broccoli seedling
Broccoli seedling. Photo by Chris Burnett.

Carrot Seedlings

Carrot seedlings in the earliest stages may be mistaken for grass because their seed leaves, unlike some other vegetable cotyledons, are tall and thin. A young carrot’s true leaves, shown below, have a distinctive, fern-like shape. Learn how to grow carrots.

Carrot seedling, by Victor M. Vicente Selvas (Own Work) via Wikimedia Commons
Carrot seedlings. Photo by Victor M. Vicente Selvas (Own Work) via Wikimedia Commons.

Cucumber Seedlings

The oval seed leaves of emerging cucumber and squash plants look very much alike, but the cucumber’s true leaves will be triangular and lobed with a fuzzy surface and serrated (toothy) edges. As the cucumber vine develops, its delicate-looking but tenacious tendrils will grip and climb anything in their path. Learn how to grow cucumbers.

Cucumber seedling
Cucumber seedling

Kale Seedlings

Kale comes in many varieties, with true leaves that may be either smooth or fancily ruffled. Its seed leaves may peek above the soil in about a week, and the plants should be thinned to a foot apart when they reach five inches tall. The benefit of thinning kale is that you can enjoy the snipped seedlings in a salad! Learn how to grow kale.

Kale seedling, by Forest and Kim Starr via Wikimedia Commons
Kale seedlings. Photo by Forest and Kim Starr via Wikimedia Commons.

Kohlrabi Seedlings

Kohlrabi—a Brassica—initially resembles seedlings of other members of this family, like broccoli, cauliflower, and kale. Until its first true leaves appear, it may be hard to recognize it! True leaves will have deeply serrated edges (more so than broccoli) and its leaves will be more pointed than rounded. 

Kohlrabi seedling. Photo by Chris Burnett.
Kohlrabi seedling. Photo by Chris Burnett.

Lettuce Seedlings

The many varieties of looseleaf and head lettuce are characterized by their leaves. Depending on whether the leaves will become soft or stiff, loose or bunched, lettuce seedlings will vary in appearance. Lettuce seedlings respond well to consistent watering and cooler temperatures and, if started indoors, will need to be hardened off before being planted outside. Learn how to grow lettuce.

Lettuce seedling. Photo by Sophiecat/Shutterstock.

Pea Seedlings

You won’t see seed leaves emerging from pea seedlings because, unlike those of many other vegetables, pea cotyledons remain underground. Peas like to climb and will form oval leaflets with tendrils that readily wind around supports. Learn how to grow peas.

Pea seedling, by Rasbak (Own Work) via Wikimedia Commons
Pea seedlings. Photo by Rasbak (Own Work) via Wikimedia Commons.

Pumpkin Seedlings

Pumpkin, squash, watermelon, and cucumber seedlings may be hard to tell apart because they belong to the same family, the cucurbits. A pumpkin’s seed leaves will be large, flat, and rounded, looking a little like small elephant ears. As it grows, a pumpkin will form huge leaves, and its vines may eventually cover a lot of territory. Learn how to grow pumpkins.

Pumpkin seedling
Pumpkin seedling

Radish Seedlings

Radishes have smooth, heart-shaped seed leaves that soon give way to elongated and scalloped or gently serrated true leaves. Radishes are fast-growing, and those planted in the cool days of spring may be ready to eat in just three or four weeks. The nutritious radish leaves, or “tops,” may be eaten as well as the roots. Learn how to grow radishes.

Radish seedling
Radish seedlings

Squash (Summer and Winter) Seedlings

While all squash will emerge with rounded cotyledons, squash seedling leaves will vary by type the more that they grow. A summer squash will develop prickly, semi-triangular, jagged-edged leaves. A winter squash leaf will generally be broader and more rounded and, while hairy, not prickly. Learn how to grow squash.

Squash (zucchini) seedlings. Photo by Irinaivanova/Shutterstock.

Swiss Chard Seedlings

Like beets (a close relative), chard typically produces 1 to 3 seedlings per seed cluster. Seedlings have narrow seed leaves and—depending on the type of chard—red, white, yellow, or orange stems. Learn how to grow Swiss chard

Swiss chard seedlings
Swiss chard seedlings. Photo by Chris Burnett.

Tomato Seedlings

The seed leaves of tomato seedlings are long and narrow, while the true leaves tend to have asymmetrical lobes, very similar to the leaves of the adult plant. Look for three connected (or nearly connected) leaves at the end of each branch, with one or two smaller leaves farther down the branch. The seedlings’ stems and leaves may also be lined with small hairs. Learn how to grow tomatoes.

Tomato seedling
Tomato seedling

Learn More About Gardening

For more information on growing vegetables, herbs, flowers, and more, check out our library of Growing Guides.

See our guide to identifying common weeds.

What vegetables are you planting in your garden this year?

About The Author

Catherine Boeckmann

Catherine Boeckmann loves nature, stargazing, and gardening so it’s not surprising that she and The Old Farmer’s Almanac found each other. She leads digital content for the Almanac website, and is also a certified master gardener in the state of Indiana. Read More from Catherine Boeckmann

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