H2-Whoa! A Guide to Quenching Your Garden's Summer Thirst
by Ken Lain, the mountain gardener
A quick glance around your neighborhood on a scorching summer day reveals various watering strategies. Some opt for evening hose sessions, while others rely on early morning sprinklers. At the same time, some leave it to the kids' playtime to determine plant hydration. But did you know that irrigation timing can significantly impact your plants' health and even save you money on your water bill?
Morning vs. Evening Watering
The debate over morning versus evening watering is a common one. Generally, morning is the way to go if you use overhead watering methods like sprinklers. This allows foliage to dry quickly, reducing the risk of fungal diseases. However, life can sometimes be flexible. If evening is your only option, focus on delivering water directly to the root zone, where plants need it most, to avoid overnight moisture on leaves.
Wilting: A Cry for Help or a Coping Mechanism?
Seeing your beloved plants droop in the summer heat can be alarming. While wilting can be a sign of underwatering, it can also be a plant's way of coping with high temperatures. Before grabbing the hose, check again at dusk. If your plants have perked up, it was likely temporary heat stress. Learning your plants' individual responses to heatwaves is critical.
Annuals vs. Perennials: Different Needs
The watering frequency for your plants depends on whether they are annuals or perennials. With their shallow root systems, Annuals need frequent watering, sometimes even daily, during hot spells. Perennials, on the other hand, have deeper roots that help them access moisture reserves. Aim for deep watering once or twice weekly, ensuring the water reaches the root zone. A rain gauge helps ensure your plants receive about an inch of water weekly.
Container Plants: Thirsty Individuals
Container plants have unique watering needs. They dry out faster than their in-ground counterparts, especially during Summer. Frequent watering is crucial, potentially even twice a day – once in the morning and once in the evening. Smaller pots dry out even quicker, so opt for larger containers whenever possible.
Vegetable Gardens: Moisture is Key
Your vegetable garden needs consistent moisture to thrive. Drought stress leads to flower drop, stunted growth, and even plant death. Focus on watering the base of plants to avoid wetting the foliage, which can encourage disease. If you use sprinklers, water early to allow leaves to dry before nightfall.
Trees and Shrubs: Deep Roots, Deep Watering
Don't be fooled by a light summer rain – trees and shrubs require deep watering to support their extensive root systems. Watering after a light rain can be effective, as it helps push moisture deeper into the soil. Focus on a thorough soak, ensuring moistness of the top eight inches of soil. Newly planted specimens need extra attention, as their root systems are still developing. Understanding your plants' needs and adjusting your water strategy ensure a thriving garden even in the hottest summer months. Timing is crucial and deep; infrequent watering is often more beneficial than frequent, shallow watering. With a bit of care and attention, your garden will flourish despite the heat.
Free Garden Classes are offered @ Watters Garden Center
We go deep into growing better. Check out this Summer's class selection offered every Saturday @ 9:30 am.
August 31 - Top 10 Trees and How to Plant Them
September 7 – Vines & Ground Covers Grown Easy
September 14 – Tough 8 & How to Grow Them
Until next week, I'll be helping gardeners water here at Watters Garden Center.
