Last week we had our employee training day at HCG, which gathers everyone together to jump-start the growing season. One of the things on the list every year to to bring all of our Green Team members up to speed on some of the issues that concern our customers. On the agenda this year, was watering.
Here is what we talked about.
Why should we care about watering?
Watering is the #1 Place where people go wrong with plants – too little or too much: either will kill plants.
What do we all need to know?
Watering too frequently for a short time creates shallow root systems. (Typical for automatic irrigation systems.) Plants with shallow roots are more vulnerable to pests, storms, winter-kill and drought.
Frequent Splashing and Leaf Fungus
Watering too frequently causes leaf spot and other fungal problems on all plants. Every lawn disease in the book lists too much/frequent water as a contributing or causing factor.
If Mother Nature provides an inch of rain (measured in a rain gauge in a 24 hour period) we wouldn’t have to water established plants. A rain gauge is a must-have tool for every homeowner. An inch of water in a can, bucket or wheelbarrow isn’t the same measurement because the openings are larger. A rain gauge measures a cubic inch of rain as it falls on a square inch of soil and the opening and markings are calibrated for that.
A deep, longer soaking less often is better than a little every other day. Deep watering makes deeper root systems. How long does it take to get a deep soaking? It depends on how much your your irrigation system or sprinklers deliver…so there’s no one answer to this that will be correct for everyone. Place your rain gauge out under your sprinkler and measure how much your system is delivering in a half hour.
Stop Hand Watering!
Hand watering is fine for newly placed plants and seedlings but is never enough for established plants – if you hand water you’re just wasting your time and the water used. People get bored long before a deep soaking is delivered, and they direct water only to the center of the plant. Roots go out beyond the drip-line on all plants…hand watering never addresses this well.
What about containers?
Watering containers too quickly leaves bottom or interior roots dry. Very dry containers have space between the soil and the container, and water runs out that space. Water a dry pot or box well, then come back in a few minutes and do it again.
More Tips for our customers:
Get a timer so you can set a sprinkler for a long time.
Use a sprinkler under trees and soak deeply once a week, instead of hand-watering at the base of the tree only.
Wrap a soaker hose around newly planted shrubs or trees, and coil it beyond the drip-line so that the soil to the sides of the rootball get soaked too. That way the roots will grow into the area around the rootball.
Apply an inch of compost or composted manure around all plants once a year. Top that with an inch or two of mulch.
Don’t have a rain gauge? Come on into the store and pick one up – then you’ll be in the know and prepared for smart watering!
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