I need a fast growing ground cover for a slope.
Zone 7a Full Sun. No foot traffic.
I was considering Boston Ivy, but it's too invasive.
Liriope spicata and euonymus fortunei (wintercreeper) are both fast-spreading and good in full sun on slopes. They can each be invasive but not as bad as ivy.
Euonymus, wintercreeper isn't fast growing, but is evergreen.
Sorry about that; it is indeed listed as a moderate grower, not fast-spreading.