Advice on companion- and under- planting
I have some blue angels (group 3) planted last fall on the west side of my porch, and despite a 4" mulch of compost it is always dry and hot at their feet no matter how I water. I am in california where it is often 90-102. Plants are still living and hanging in there but not exactly thriving as my east-side Clem's are doing. I feel they can use a companion Clem or other vine, and some foot-covering plantings.
I am looking for two ideas: another vine (group 3 clematis ok) to join them, and what perennials are suggested for my sun-blasted planting bed? I have some Lisanthus there but they are spindly and pathetic!