I was given a small pot with Forget-Me-Not seeds. I planted them according to the directions, which at the end said "Watch your flowers grow!" Making me think that after planting there wasn't much else I needed to do. When the soil is dry I water it. However, the seeds sprout and grow about 1.5-2 inches before they fall over and die. I've plucked out a few, thinking maybe their roots have reached the bottom of the pot but, no, the roots were only a few centimeters long. What can I do? Do I need to get a different pot? Should I try to give the plant more sun? I'm not sure which type of Forget-Me-Knots I have, so I don't know how much sun and water I should be giving them. Thank you so much for your help.
It sounds like you may have damping off happening. This article will help: https://www.gardeningknowhow.com/garden-how-to/seeds/what-is-damping-off.htm
If they can be grown in containers, how should they be cared for?
Yes, you can grow forget-me-nots in containers:
https://www.gardeningknowhow.com/special/shade/plants-for-creating-shade-containers.htm
For more information how to care for forget-me-not flowers, please visit the following link:
https://www.gardeningknowhow.com/ornamental/flowers/forget-me-nots/growing-forget-me-nots.htm
When do I start the seeds?
You can start seeds indoors in early spring with hopes of getting flowers by fall but more than likely the soonest you will see blooms is next spring. Seeds can be sown outdoors from spring (after danger of frost) to August. Sow seeds about 1/8 inch deep and keep soil moderately moist during germination. When seedlings are 2 to 3 inches tall thin or transplant them to 8 to 10 inches apart in the garden.
For more information on the care of forget me nots, please visit the following link:
https://www.gardeningknowhow.com/ornamental/flowers/forget-me-nots/growing-forget-me-nots.htm
I just want to know if cutting back the long stems of flowers will encourage more blooming. There are more seeds than flowers on the stems.
You can dead head and trim them back.
They will free seed and you may want to cut them back before they go to seed.
Here is a link about growing Forget-me-nots.
https://www.gardeningknowhow.com/ornamental/flowers/forget-me-nots/growing-forget-me-nots.htm
I've grown my Forget Me Not plant from seeds. I started it this past winter. Aside from an episode where my cat thought it was his to munch on, it has done pretty well. It just has not flowered. What am I doing wrong? I appreciate any advice you could give.
Some types of forget me nots are biennials. They won't bloom in the first year of growth. You aren't doing anything wrong. As long as it's alive, you're doing it right.
They do prefer a damp shady area, most likely it needs more moisture.
You can even mist the plant or sit it on a tray of stones with water to add humidity.
Also can try adding some Phosphorous, with Bone Meal to encourage blooming.
Here are a few links for you.
https://www.gardeningknowhow.com/ornamental/flowers/forget-me-nots/growing-forget-me-nots.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/bone-meal-fertilizer.htm
I am wondering if I need to do anything with my forget-me-nots now that fall is approaching, like cut them back or just leave them the way they are, etc.?
You do not need to cut them back, just allow them to die off naturally.
Here is a link with growing information.
https://www.gardeningknowhow.com/ornamental/flowers/forget-me-nots/growing-forget-me-nots.htm
Great info on the care of Forget Me Nots but it doesn't mention when to plant the seeds?
You should start your seeds in early March indoors. Follow the instructions on the seed packet for seed germination.