HELP! I Need Help with Growing My Sunflowers!!!

Are they in peat pots?
Or a plastic pot?
What size pot are they in?
Or are the in seedling trays?
or in peat pellets?
Starter Kits, really vary...

But, you will eventually, need to put them into bigger pots. As they grow.

It they are getting taller... you can even put a little chopstick in there to help hold them upright. Since they are only 3" tall right now.
Again, I don't know what size your pots are, that they are in.

But also with Sunflowers, as the sun shines on it, the stalk will go straight up. Toward the sun. If there is no sun, the plant/flowers will lean... to look for and find the sunlight.

Do you have an indoor patio with windows that you can put them in?

Sunflowers grow fast.
You could put an empty milk jug over it. But Sunflowers grow fast. And, the milk jug plastic is opaque, so not much real sunlight, well shine through. And the plant will outgrow it quickly.

If they are leaning and only 3" tall, they probably are leaning toward the light. Try turning the starter kit so the brightest light hits the other side. Turn them again every time they lean toward the light. Sunflowers need lots of bright light, preferably full sun, so keep them in the sunniest window in your house. If the sun just isn't happening, you can also place them directly under a goose-neck lamp, with the bulb only 3-4 inches above the top leaves.

If they are leaning because the stems are too thin and floppy, they are NOT getting nearly enough light. Staking won't really help much, because they'll be extremely hard to transplant without breaking the stems.

Do transplant into bigger pots as soon as possible so the root systems have room to grow deeper. This will make their move to the outdoors more likely to succeed, even if you have to keep them in the house for another couple of weeks.

If more light doesn't help, it's possible this batch is just out of luck because of the unpredictable weather. They can't go outside if it's too cold, and if you cover them with milk jugs or other protection, a sudden hour of bright sun could just cook 'em. You could try planting a second batch of seeds.

Anyway, I wish you and your seedlings the best. Make careful observations about what works and what doesn't so you can correct for those factors next time you try. Gardening is rife with small disasters. Don't let that discourage you. It's also a wonderful, joyful, and educational activity that will connect you with the earth, and you may find yourself hopelessly and happily addicted after a few sucesses.

Did you know that the sunflowers will always face the East? Only young plants will track the sun which is what they are doing. I have never sprouted sunflowers, instead I plant the seeds directly in the ground. They have a rather short cycle to when they produce mature seeds.

I would leave them as is for now and turn them since they will seek the sun. When you plant them outside you need to plant them deep enough that the seed leaves are just under the surface. I would think at three inches all they have are seed leaves so transplanting is not a viable option.

Sunflowers have a very strong trunk if you want to call it that. I have never had to use support for mine. As they get older it gets harder and supports the plant. I have heard of people putting a v shaped notch at the end of a broom handle (wood of course) to support the mature flower but I have never done that. The worse that happens is some of the seeds fall out. I don't mind sharing with the birds.