Can anyone tell me if I can use packaged seeds from 2 years ago? Do they go bad? Or dry up?

For the broccoli to produce seeds for next summer garden, how do i know what i should be looking for?

I plant 3 broccoli seeds per cell and also cut off the weaker plays leaving only one?

I haven't seen a white moth or any pest problems like we have here in zone 6.??

I just transplanted some broccoli into containers in zone 9b. How often do you water your broccoli? Do they require a lot of water?

Which brand timer are you using guys , and for how long? Most of the brands that are available in India don't last long, I was told.

I have seen that there are inverters of 10kw or more. If I put two 1000 watt solar panels the batteries can be charged with two solar panels or does this experiment not work?

I heard it's from not watering the plant for too long? I didn't notice them when I bought the plant and now I wonder if the plant will recover on its own or if I should cut them off or just leave the ends be as they are now.I heard it's from not watering the plant for too long? I didn't notice them when I bought the plant and now I wonder if the plant will recover on its own or if I should cut them off or just leave the ends be as they are now.

When repotting, do you have to put a bottom piece with holes below the soil?

How do feed them fertilize when you first got them initially? if so, how often and do you still fertilize them until this day?