The the little bulb at the end of the flower. Are those seeds? Snd how or can I plant them to grow bulbs.? (The pink flowers with the for flowers on top.)
Unfortunately, your photos did not come through. From your description, it does sound like they have gone to seed. You can compare yours to images from google to confirm. the Technical name of your plant is Amaryllis belladonna.
Planting them from seed is quite easy, however, you won't see any flowers for up to a decade, this way.
This article will offer more information on the care of the flower:
https://www.gardeningknowhow.com/ornamental/bulbs/amaryllis-belladonna/growing-amaryllis-lilies.htm
I have propagated amaryllis from seeds 2.5 years ago. Several are now 20-24 cm in circumference. I brought them in for the winter, put them in pots with their long leaves attached. They are in a sunny window. My questions: how do I get them to bloom and are they too immature to bloom? Do I cut back the leaves? Do I make them go dormant?
Yes, they are likely to immature to flower. This can take anywhere from 3 to 5 years with proper care. This collection of articles will help you with the care of the plant:
https://www.gardeningknowhow.com/ornamental/bulbs/amaryllis-hippeastrum
Do I need a lid on the box I placed my dormat amaryllis in. Or just an open box in a cool dark place.
Either way is OK. I prefer to leave it exposed to air so that it has less of a chance to rot.
https://www.gardeningknowhow.com/ornamental/bulbs/amaryllis-hippeastrum/amaryllis-bulb-storage.htm
This collection of articles will help you with Amaryllis care:
https://www.gardeningknowhow.com/ornamental/bulbs/amaryllis-hippeastrum
It has been on my porch and has grown long leaves. DoI cut it down and store in a dark room? Do I water or fertilize it?
This will be due to a lack of dormancy. This is necessary to get it to bloom. Taper off watering a little at a time until the leaves start to die off. Once this is done, it will need a rest period in a dark, cool location for anywhere between 1 and 3 months. After, you will introduce it to light, slowly while starting to water as well.
By this time, it should be blooming.
https://www.gardeningknowhow.com/ornamental/bulbs/amaryllis-hippeastrum/no-flowers-on-amaryllis.htm
https://www.gardeningknowhow.com/ornamental/bulbs/amaryllis-hippeastrum
Did it get its dormant period? Followed by fresh potting soil, light and water? Here is more:
https://www.gardeningknowhow.com/ornamental/bulbs/amaryllis-hippeastrum/amaryllis-bloom-again.htm
I have 100 Amaryllis bulbs and some have buds on now. We live in zone 10-a. What is the lowest temp can they stand without danger to buds.
Amaryllis is completely hardy in your area. They can withstand temperatures down to zone 8.
They don't care much for temperatures below around 50 degrees, though, when they are actively growing, and below 20 during dormancy.
https://www.gardeningknowhow.com/ornamental/bulbs/amaryllis-hippeastrum/amaryllis-outdoor-garden.htm
leaves of amaryllis are drooping - flower stem is upright but hasn't bloomed yet. Should I cut them?
With an indoor Amaryllis It is common to overwater. My red Amaryllis sit in the back of my tent and get forgotten about many times, though they won't flower well with neglect. It will survive just fine with conditions on the drier side better than it will fare with wet conditions. As with any plant, though, frequent watering with proper drying between is best as both overly wet and dry conditions can cause limp leaves.
Since it hasn't bloomed yet, there is no reason that it should be entering dormancy at this time. I don't suspect this to be the case.
Lack of light can be an issue, as well. This will usually be accompanied by noticeable stretching and lots of light coloration at the base of the leaves. This is another one that is very common.
Be sure to give your flowers a dormancy each year, as well.