The 9 Best Flower Seeds to Plant with Kids

Easy, Beautiful, and Fun

Vegetables teach kids patience. Flowers teach them something better: pure, cut-it-and-give-it-away generosity. There’s the color, the butterflies, and the fact that a fistful of zinnias can turn into the perfect gift for meet-the-teacher in minutes. Kids get the appeal of a flower garden instantly, in a way a zucchini patch never quite manages.

But not all flowers are worth growing with children. Some are fussy, some are slow, and some just don’t have enough going on to hold the attention of a six-year-old past the first week of planting. These nine are the opposite of all of that—easy from seed, rewarding to tend, and genuinely thrilling to watch bloom.

1. Sunflowers

If any flower was designed for growing with kids, it’s the sunflower. The seeds are big enough for small hands to plant without difficulty, the plants grow fast and dramatically, and watching something go from a seed to taller than your child in a single summer is the kind of result that sticks with kids for years.

Most varieties bloom within 80 to 120 days, with some faster types flowering in as little as 55. Once they bloom, the seed heads attract birds—which is a whole bonus nature experience. Try Mammoth for maximum height and wow factor, or Teddy Bear if you’re tight on space—it’s compact enough for containers and produces gorgeous fluffy blooms that kids absolutely love.

🌻  Why kids love it: Dramatic height, big cheerful blooms, and birds come to visit. 🏡  Good for: Garden beds, large containers ⏱  Days to bloom: 55–120 days depending on variety

2. Zinnias

Zinnias are one of the most reliable flowers you can grow with children—and the thing that makes them genuinely magical for kids is the cut-and-come-again trick. The more you cut them, the more they produce. Taking flowers from the garden actually makes more flowers grow back. Kids find this properly mind-blowing the first time they experience it, and it’s a lesson that keeps them engaged all summer long.

They germinate quickly (often within 5 to 7 days), come in a riot of colors from hot pink to orange to red, and bloom continuously from midsummer right through to the first frost. Sow directly into warm ground and let them do their thing. Benary’s Giant is excellent for large blooms, or try Thumbelina for a compact container variety.

🌸  Why kids love it: Cutting flowers makes MORE flowers 🏡  Good for: Garden beds, containers, and cutting gardens ⏱  Days to bloom: Around 60–70 days

3. Marigolds

Marigolds are possibly the most underrated flower on this list. They’re fast from seed—germinating in about a week—unfussy about soil, and they bloom all summer through to the first hard frost if you keep deadheading them. That’s a long season, and a long season means a lot of opportunities for kids to check in, pick flowers, and feel proud of what they’ve grown.

They’re also brilliant companion plants—pop them near your vegetable patch and they’ll deter pests while attracting pollinators, which is a nice little gardening science moment to share with kids. French marigolds like Durango Mixed are a brilliant starting point: compact, colorful, and prolific.

🟡  Why kids love it: Fast results, bold colors, and they bloom for months. 🏡  Good for: Containers, garden beds, alongside vegetables ⏱  Days to bloom: 45–55 days

4. Nasturtiums

Nasturtiums have a secret that makes them a total winner with kids: you can eat them. The flowers have a peppery, slightly spicy flavor and the leaves are edible too. You may want them as part of a colorful salad; for littles, it may be more of a fun thing to try. Either way, that “we grew something we can actually eat” moment lands just as hard with flowers as it does with vegetables.

They’re also wonderfully easy—big seeds that small fingers can handle, quick to germinate, and they actually prefer poorer soil, so resist the urge to over-fertilize or you’ll end up with lots of leaves and not many blooms. Sow them directly where you want them to grow, as they dislike being transplanted. Jewel Mixed gives you a beautiful warm range of reds, oranges, and yellows.

🌼  Why kids love it: The whole plant is edible—flowers, leaves, and all. 🏡  Good for: Garden beds, containers, trailing over edges ⏱  Days to bloom: 35–52 days

5. Cosmos

Cosmos look delicate and complicated, but are actually incredibly tough and low-maintenance. They thrive in average or poor soil, self-seed freely so they often reappear year after year, and need very little attention once they’re established. They’re perfect for kids who want to be a little hands-off after the initial planting excitement.

They also attract butterflies in real numbers, which is a huge bonus for curious kids who love to watch the garden come alive. Sensation Mix is excellent for classic tall blooms, or try Sonata Series for a more compact option that works well in containers.

🦋  Why kids love it: Butterflies love cosmos—expect regular visitors all summer. 🏡  Good for: Garden beds, containers, wildflower patches ⏱  Days to bloom: 50–60 days

6. Cornflowers (Bachelor’s Buttons)

Cornflowers earn their place on this list largely because of that color. The vivid blue is genuinely unlike almost anything else you can grow easily from seed. They bloom from June through September, work brilliantly as cut flowers, and they’re another cut-and-come-again variety, so regular picking encourages more blooms.

They do best with direct sowing in early spring or autumn—they don’t love being transplanted—and taller varieties may need a little support by midsummer, which is an easy thing to involve kids in. Blue Boy is a classic reliable choice, or try Classic Magic for a beautiful mix of colors.

💙  Why kids love it: That vivid blue is unlike almost any other flower 🏡 Good for: Garden beds, wildflower patches, cutting gardens ⏱  Days to bloom: 60–90 days

7. Poppies

Poppies are about as easy as it gets—you scatter the seeds across the soil, give them a water, and stand back. They don’t like being transplanted, so direct sowing is the way to go, and they do better in the ground than in containers. The blooms themselves are gorgeous, coming in everything from bold reds and oranges to soft pinks and purples.

But honestly, the real magic moment for kids comes at the end of the season, when the seed pods dry out and rattle. Harvest the pods together, shake out the seeds, and you’ve got next year’s garden ready to go—a brilliant, satisfying lesson in how plants take care of themselves. Shirley Mixed gives a beautiful range of colors, or go with Ladybird for classic red with dramatic black blotches.

🌺 Why kids love it: The rattling seed pods at the end of the season are endlessly satisfying (and less annoying than pop-its) 🏡 Good for: Garden beds and borders (not containers) ⏱ Days to bloom: 60–90 days

8. Sweet Peas

Sweet peas are on this list for one reason above all others: the scent. Kids who grow sweet peas almost always remember the smell years later, and that’s exactly the kind of memory you’re trying to make.

A quick honest note though: sweet peas are a little more particular than everything else here. They love cool weather and don’t love heat, so they have a shorter season than some—the trick is timing. Start seeds indoors 6 to 8 weeks before your last expected frost date, then move them outside as soon as the ground can be worked. But the climbing vines, the incredible fragrance, and the gorgeous cut flowers they produce make the extra effort completely worth it. Spencer Mix is excellent for classic large blooms, or try Little Sweetheart for a compact bush variety that doesn’t need a trellis.

💐  Why kids love it: The sweet scent 🏡 Good for: Garden beds with a trellis or fence to climb ⏱  Days to bloom: 60–90 days from transplant

📝  Heads up: Sweet peas love cool weather—start them early and plant out as soon as possible.

9. Morning Glory

Morning glories are the most theatrical flower on this list. They climb fast, spread wide, and every single morning the trumpet-shaped blooms open fresh—which gives kids a daily reason to check on them before school. By afternoon they’ve closed up again, which feels like the plant has its own little daily routine. Kids find this endlessly appealing, and honestly, it doesn’t get old.

One tip worth doing together the evening before planting day: morning glory seeds have a hard outer coat that benefits from a little help. Nick the seed gently with a nail file and soak them in water overnight before planting. It’s a hands-on step kids enjoy, and it makes a real difference to germination. Try Heavenly Blue for classic vivid blue trumpets, or Grandpa Ott for a gorgeous deep purple variety.

🌅  Why kids love it: New flowers open every single morning 🏡 Good for: Fences, trellises, arches—anything to climb ⏱  Days to bloom: 70–105 days

📝  Tip: Nick the seeds with a nail file and soak overnight before planting for best germination.

One Last Thing

You don’t need to plant all nine of these in your first season—and you really shouldn’t try to. Pick two or three that excite you and your kids, and build from there.

A sunflower each, a pot of zinnias by the back door, and a handful of nasturtiums scattered in a corner—that’s a garden. That’s a summer of watching and picking and eating and wondering. It doesn’t need to be more complicated than that to be magical.