What's going on for Houston for Easter that I can participate in safely online from home?

I'm looking for seeds for plants locally adapted to Houston. I'm primarily interested in food or other useful plants but information about other plants would be welcome too.

Looking for information about:

• plants that are native to this area
• seed swaps and exchanging seeds in Houston (through mail if possible)
• seed sellers that grow in or near Houston
• sharing surplus seeds or cuttings with people who will put them to good use
• plants/cultivars that tend to do well here

Looking for some advice as a first-time gardener. I'd like to grow some of my own food in my yard this year, but I'm not sure what will grow well in Houston, what's still good to plant right now, and where I can get seeds for locally adapted varieties.

Would appreciate any pointers, tips, advice, etc.