You often hear me talking about deep-root watering and feeding trees. It's all about putting a series of holes in the soil inside and outside a tree's drip line. All the details are in this tip sheet.

This might be a great time to try this as a do-it-yourself project (LEFT). After all the rain we received in June, the ground may never be easier to work with than right now.

Now, really big trees — such as, for example, a 25-year-old oak — may still be difficult to handle on your own. Something like that should probably be tackled by a tree company. Professionals can inject food-infused water far more efficiently that we can with something like a Ross Root Feeder.

I'm often asked what the average price might be for a professional deep-root feeding (ABOVE RIGHT). That's always dependant on how big the tree is, but you can find pricies as low as $75 per tree for those younger than 10 years. Costs can climb to as much as $200 per tree if the canopy is very wide. Having multiple trees done at the same time can usually help you negotiate lower rates per tree. In many cases, professional tree companies will throw in a free deep-root feeding for any mature tree that they prune at the same time.

So, whether you're using an auger bit for a drill, a post hole digger for bigger trees, or just a Ross Root Feeder (LEFT), there's no time like the present. By the way, the Ross Root Feeder is a tool that should be used solely for making holes. Ignore the feeding instructions that come with it, and definitely don't use the "fertilizer" they provide. When you hook a Ross Root Feeder to a hose, you get a concentrated jet of water, which is helpful in getting in some deep holes. But that's it.

Remember that I don't care what food you use as long as it's organic. This isn't an in-your-face attempt to save the planet by getting you to "go organic." It's simply the smartest food choice, not just for the tree root system, but to microbially charge the soil itself.