Texas Gardening: Need clematis help, please, 1 by BajaBlue

BajaBlue wrote:
I have never yet tried clematis, but they ARE
on my want list.

Especially c texensis Princess Diana because
it is native to Texas, and c Rebecca &
c Multi-Blue,

But one thing sort if confuses me.

Instructions always say to keep the roots shaded.

Well, doesn't the soil shade the roots ?
Is the reasoning that shading the roots will keep them cooler ?
Does shading the roots also keep them moist ?

Can the shade be provided by other plants or by soil or
mulch, or MUST it be by rocks ?


foto is clematis Texebsis Princess Diana