How to best introduce baby spiders into the wild, from a jar?

Somewhere out there is my man Daniel G. Anyone else who may have an idea would be most welcome. I was able to mate a female Tutelina Elegans jumping spider. She was so well fed she didn't even eat the male and I was able to release him back onto nature after they did the spider boogie. I was shocked when they got together. The odds seemed against such a successful venture.
Anyway, She, (Jill,) laid several batches of eggs and now some of the eggs have hatched. YAY! This just happened in the past few days. The release time seems good since the weather is not showing any further of threats of frost. She's been with me for around six months now, but it's time for her and here babies to go back to nature. I'd like to watch them grow, but that would more likely lead to their demise. *Sigh*
Anyway, How can I best release them? They are housed in a little nest at the bottom of a jar. I was going to lay the jar in a grassy area where it wont fill up with water, partially upside down, and insert a few pieces of grass to give them a way to transition easier. Will this be sufficient? I'd appreciate any input. I want to give these little guys the best chance possible. Thanks so much for your time.