Hornetwife, let's maybe think that maybe its not the spidermites fault it is wilting. Mites cause selective problems. Mites leave tell-tale proof of their being there. Mottled leaves, yellow or otherwise leaf dropping will be first noticed. I cant believe they can cause widespread wilting of the whole plant. There are other causes of such that do affect houseplants. Wilting can come about from bad watering habits. That is, if you allow the plant to dry down too much....then water ...too much....then allow it to dry down...too much....and follow again with watering ......excessively, that will not correct wilting. Wilting can only be allowed for a certain lenght of time...then the plant suffers. Watering. Sometimes when soil dries out too much...it shrinks from the sides of the pot. When you water...what you think is sufficient because water is seen down at the drainage saucer, may be because the water is not reaching the roots, but is only running down the sides where the soil has shrunk. If this is suspected, one must water to the point of immersion. Take the plant to a sink where water can be filled and where the plant, so immersed...pot and all, so that water fills all the cavities ---til the bubbles stop...and any bugs therein, have to come to the surface to breathe. This sort of thing should be done sparingly...and is treated as a watering. The plant is allowed to dry down normally. Wilting can come about when given too much sun or heat. Such dry air currents from heat vents or from a window that directs sunlight to bear too much on the plant. To subsidize for watering....possibly too much, try misting the plant regularly. This misting can often defeat spidermites hanging around. Try to use an atomizer that directs a mist...instead of a general hard spray which soaks the plant. You want to give the plant some humidity....not a watering. When you sprayed water on the leaves, surely the soil got some too...possibly too much. Whenever you spray a plant in this way for whatever reason, keep in mind the soil is getting soaked as well unless you take steps to protect it. Just leaning the plant over so that water runs off and away can be tried. Covering the soil surface with something to prevent its being watered is another thought. It is common for any wilting plant, once given a good watering, to perk up within a reasonable time...usually within a couple hours. If such plant does not perk up, then look elsewhere for what is causing it. You may have to unpot the soil and look for any sign of rotting of the roots. When a plant is given too much water....over an extended time, it soon stops its ability to take up nourishment. The roots begin to rot....and even though water surrounds them, the water just sits...and is not taken up by the plant tissue....and soon shows the effects. I suggest Hornetwife, you think this may be what ails your plant and you should remove it from the pot and inspect it for any signs of rotting. Sometimes the smell will tell you right off. If you feel this is not the case then, you can either choose to replace the soil or just re-pot it in the old soil and top up if necessary. In any case, do make sure the pot drains well. Sometimes the kind of water we give to our plants can cause problems. Water from a tap...may be too cold. Plants don't like cold water given them. Water that is left to gain room temperature by overnight sitting is preferred. Water from a hard-water system....that is, from a well that is on a softening system using salt, such water is definitely not one for houseplants. If you have such a system....and cant go off-line for water, then use bottled water. Or....use instead of sodium chloride in the system, use potassium chloride...which is safe for use in houseplants. Ask any plumber about such a change.

Looks like Helianthus to me.

I don't think it's a croton anymore. Maybe Oenothera or something? 56 Oenothera species in Texas. Thoughts? A flower might help.

Heterotheca subaxilaris.