I am looking for a evergreen tree to plant near a swimming Pool.
What I am look for :
1- Has some canopy to provide shade,
2- low litter, has no or very small amount of flowering, no fruit. Will accept minimal amount of litter.
3- Small to medium size, so it does not damage pipes and deck. 4- Prefer drought resistant types.

After research, I have ruled out palms and giant bird of paradise, for they don't provide canopy and shade.

I have narrowed down to three , and will to pick one for least amount of litter

Australian Willow (Geijera parviflora)
Bronze Loquat (Eriobotrya deflexa) ; fruitless
Shoestring Acacia

Does anyone had planted those trees near pool? What was your experience with those trees' drops and littering

I live in S. California

Thank you very much.
Monkeyta