Planting grasses on a slope by tall trees
I am challenged trying to plant an attractive grass garden just east of a jungle of a neighbors backyard. Tall volunteer trees/saplings mess lining the entire west side next to my property in the back. Awful. Really bad.
The goal is to plant things that will not lean away from the overwhelming trees and stand straight up on a downward slope. I get sun all morning until around 1:30pm. Grasses are the only thing I have found that will not lean east. Perennials and shrubs fail and make you want to turn your head sideways to view it. However, I am finding some grasses also lean.
So far, the bluestems work fine. Miscanthus are fine as well as both Sacaton Alkali and Giant Sacaton (thank goodness, I'd hate to have 10 feet tall leaning grasses). The biggest challenge is finding taller grasses that don't lean, short ones seem to do better.
Pennisetum 'Karley Rose' is leaning very badly toward more afternoon light and tends to grow vertical to the sloping ground as well. Not looking good at all, bad choice for slopes. Don't believe the "does well in partial shade" info. IT LEANS BADLY. The Panicum Northwind had to be terraced because it tends to grow at a 45 degree angle to the ground and it needed better water absorption so I amended the soil deeply yesterday with sand and organic matter, made a flat "shelf" for it to grow on and put a ridge around the clumps to collect more water and have less run off. The P. 'Northwinds' at the lower end of the property where water inevitably drains down are twice as thick and tall. Its just hard to water a slope and these like water.
I am wondering if anyone else is dealing with growing grasses on a slope because I am finding some grasses definitely do better than others in this situation. Any suggestions of grasses, especially tall/medium ones, to definitely avoid (like P. 'Karley Rose'!) would be appreciated. I just put in an order for 8 'Blue Heaven' Little Bluestem at the SRG Spring 1/2 off sale as a 'Karley Rose' replacement. They work great on slopes!