There are great magazines now on gardening.....subscribe to several of them.....and KEEP them. After all, year after year, you'll have the same plants, if successful.
Mulching is a necessity. In Texas? Get some books on what to grow in your climate. Keep to that at first, then perhaps branch out.
Drive by and notice any well scaped business.....they won't put in what doesn't look nice with a low maintenance factor. Money issues. Take good notice of what's growing along the highways, etc.
As for herbs? Dunno much. Rosemary's neat....run your hand over it and it smells good (if you like that smell).
One hard lesson I've learned....PASSALONG PLANTS are not necessarily your garden friend for many years. The reason that they're passalong plants (someone's passing them along to you) is that their garden is too damned full of them. And in not so many years...so will your garden. Things you might see at flea markets, etc., by private persons tend to be that way. Be careful - or at least forewarn the next passalong person.
Daylilies are great.....but take a lot of water to produce great blooms. Blackeyed Susans (Rudebeckia -my spelling is lousy) are great. They do spread.....but they don't need near the water, and bloom after Daylilies. Japanese Anemone is wonderful in early fall, but needs water for blooms.
Actually, most things that bloom need water. That might be an issue in Texas, eh? Oh! If Lantana grows in your reason - check it out! New colors & textures almost every year. Very low maintenance and low water.
Watch where the sun hits your yard - it's a MAJOR issue. So is water & shade. Read & watch & enjoy and get grubby. Wonderful therapy!
waiting - with always dirt under her nails