If it's a SFH, you could have the tenant pay for landscaping if you put it in the lease.

After living on the streets of Los Angeles for seven years, Theo is attuned to each and every transformation in our urban landscape that signal the homeless are not welcome.

Improved landscaping.

Other components in the property like furniture, carpeting, fixtures, pavement, landscaping, etc. depreciate on a faster schedule and can be properly accelerated through a cost segregation study.

Not to be a Debbie Downer, but that is the landscape. 

Our scope of work included a new roof, gutters, siding repair/replacement, stairs/deck repairs, remodel two units and landscaping.

Also build Contractor units for plumbers, electricians, landscaping. 

I don't know specifically about a log cabin, but generally I've heard you're looking in the $250/sq foot range + foundation costs, which due to the landscape up here is where things can get really expensive.

Even with under market rents you do not likely want a mass exodus mid-Corona.I'd try and focus on doing several units at a time while also trying to change the culture via the exterior of the property via landscaping and paint. 

Rather the landscaper deal with that.