Best material for leveling a bumpy clay lawn in Portland (Zone 8b)
I’m in Portland Zone 8b and trying to level a very uneven/bumpy lawn (~2500 sqft).
So far I’ve:
- Removed weeds and roots
- Aerated the lawn
Now I’m trying to figure out the best material to use for leveling.
Options I’m considering:
- Premium garden blend (manure/compost/sand mix)
- 3-way blend (mostly compost + sand - 3:2)
- 3-way blend and more sand 50/50
- Screened topsoil + mason sand (50/50)
I’ve read mixed opinions online. Some people say compost-heavy mixes are great for clay, but others say screened topsoil + sand levels smoother and is easier to work with.
My main goal is a very smooth/level lawn long term.
For people in Portland or similar clay soil areas:
- What mix worked best for you?
- Did you use compost, topsoil, sand, or a mix?
- Any local places you recommend for bulk material?
Would appreciate any advice before I order a few yards of material.