We’re also having an outdoor ceremony. A friend just had one a few weeks ago (in fact, they might get back from their honeymoon today!). She didn’t have a runner and all the women wore heels and I don’t think we are going to have a runner and we are all wearing heels.
I don’t know of anyone getting stuck in the ground at our friend’s wedding and it rained the day before (the weather was beautiful the day of her wedding). Nor did anyone complain or even comment on it. We all talked about how bright and hot it was (note: we did not complain, just commented).
The tile idea sounds great, but I don’t want to kill the grass where the aisle would be. Plus, we aren’t going to dig the aisle so the tiles wouldn’t lie flat.
I like the flower petal aisle, it’s very pretty.
If she’s really worried about getting stuck, why not ask if she’d prefer wearing flats or a wedge? It would give her a heel she’s comfortable in and get the complaining off your shoulders.
If she just has to wear heels, why not gently and kindly remind her that when you walk in heels, particularly 3"+ heels, you walk on the balls of your feet, not your heels. It’s how the professionals keep their balance and don’t fall over.
Other options for a runner:
A rock path, but could be problems with people tripping over them, plus they’d be a pain to clean up.
A carpeted path, there’s the red carpet used in Hollywood-like events, but you can also get a runner made out of any color carpet. Pick the color you like best for your wedding and go with it.
A wooden path. Tent companies usually offer dance floors made of wood. The floors are laid on all kinds of ground, including stone patios and grass. Why not see if you can find a company (or one of your vendors) could put together small sections of a dance floor to make an aisle? It’d be a natural element, so it would go well with the outdoor feel. As with the tile option, you might kill some grass. But these floors are made to go on unlevel ground, so you wouldn’t have to worry about the floor moving while you walk and possibly throwing you or someone else off their balance.
I think fabric options wouldn’t be stiff enough for heels and moss or something would also be too soft.
Whatever you decide, good luck! 🙂