A half inch above ground level is ideal for metal edging. This provides enough depth for the edging to hold in place and enough height to keep in most landscaping materials (like mulch or gravel). If you install edging too high off the ground, it will stand out from your landscaping and pose a tripping risk. If you install it too low, your ground cover won’t stay in place.

It depends. Smaller, younger trees take longer to mature, but they're more resilient, their roots don't get as damaged during transplanting, and they recover faster. Plus, they're much more affordable to plant, and it's possible to DIY the planting. 

On the other hand, mature trees produce fruit faster and provide more shade and privacy immediately. Ideally, a small or medium tree is the better choice if you can wait a few years for it to mature. But if you need immediate maturity, a larger tree is the only option.

The best time to plant is between spring and autumn. Springtime weather is typically mild and is when nurseries start to bloom. When the summer weather arrives and it’s hot out, it’s best to avoid planting bare-root plants, but you can still plant many in-container varieties. The first sign of fall is another great opportunity to plant biennials if you live in southern states, or a lovely vegetable garden up north.

Grass is the most popular and safest option for planting over a septic drain field, but you can also plant small flowering plants and other lightweight plants that don’t have woody or deep roots. Avoid trees and bushes within 10 feet of the field, as the woody roots can crack the perforated pipes. You should also avoid planting vegetable or fruit gardens over your drain field, as a leak from the pipes could contaminate the soil and put anyone who eats the produce at risk.