Dripline plants

Any suggestions on what I can plant under the dripline of my roof?  We have a thatch roof.  We wish to lessen the splash, but it's gotto be something with good roots to withstand the force of the water from above.

Tks

a lot would depend on the area where you are from..i looked on your profile and didn't see a country or state.

thatch roof is kinda a giveaway that you don't live in a snowy climate.

it also would depend on the amount of rain you get and the force it comes at..

so if you could supply  this info you will get better answers

Off course... sorry!!

I live in the interior of South Africa.  Summer rainfall.  We can get quite heavy rains up to about 25mm - 30mm an hour.  In extreme cases more, but that doesn't happen every year.
2009 season we got rain about 5 afternoons a week.  But that was an extreme year.  It should be less, but last year was my first year on the property and my only reference point.

Thanks a lot!!