The Best Way to Keep Your Garden Hydrated in Hot Temperatures
Temperatures across the United States have been rising steadily over the past several decades, with the last nine years (2016–2024) ranking among the ten warmest on record. According to NOAA, the average U.S. temperature has increased by about 2.6°F (1.4°C) since 1901, with over 90% of that warming occurring since 1970.
Heatwaves are becoming more frequent and intense, and the duration of the hot season is lengthening. At the same time, drought conditions are worsening, especially in the western states. In 2022, nearly 60% of the continental U.S. experienced moderate to exceptional drought, one of the highest percentages in recent history.
Persistent drought has lowered reservoir levels, stressed agriculture, and increased wildfire risks, making water scarcity a growing concern for millions of Americans. These trends highlight the urgent need for climate adaptation and water conservation strategies nationwide.
As a dedicated gardener, you know that maintaining proper hydration for your plants is crucial, especially during hot temperatures. So, what is the best way to keep your garden hydrated when the sun is beating down? Let's explore some expert tips and techniques to ensure your garden thrives even in the hottest of conditions.
Choose the Right Time to Water
Timing is key when it comes to watering your garden during hot weather. The best time to water your plants is early in the morning or late in the evening when the sun is not at its peak. This helps to reduce water loss through evaporation and ensures that your plants have enough moisture to withstand the heat of the day.
Here is an example of what your water schedule might look like:
Frequency: 3 times per week (e.g., Monday, Wednesday, Saturday)
Time: 6:00 AM – 8:00 AM
Duration:
Vegetable gardens: 30–45 minutes
Flower beds: 20–30 minutes
Lawns: 30–40 minutes
Potted plants: Check daily; water as needed until water drains from the bottom
Use Mulch to Retain Moisture
Applying a layer of mulch around your plants is an effective way to retain soil moisture and prevent evaporation. Mulch acts as a barrier, keeping the soil cool and moist, which is essential for plant roots to absorb water efficiently. Organic mulches like straw, wood chips, or compost are excellent choices for retaining moisture in the soil.
Mulch not only helps retain soil moisture but also reduces weed growth and keeps the soil temperature cooler—perfect for surviving those scorching summer days!
Choose the Right Mulch
Use organic mulch like shredded bark, straw (not hay), grass clippings (dried), compost, or wood chips. These materials break down over time and enrich the soil.
- Prepare the Soil
- Water your garden thoroughly before applying mulch.
- Pull any visible weeds and fluff up compacted soil if needed.
- Apply the Mulch
- Spread mulch 2 to 4 inches deep around plants and over exposed soil.
- Keep mulch about 1–2 inches away from plant stems or trunks to prevent rot and pests.
- Maintain the Mulch Layer
- Replenish mulch as needed throughout the summer, especially if it thins out.
- Avoid piling it too thickly, as this can suffocate plant roots.
- Water Deeply and Infrequently
Instead of frequent, shallow watering, opt for deep watering sessions less often. This encourages plant roots to grow deeper into the soil in search of water, making them more resilient to drought conditions. Aim to water your garden to a depth of at least 6 inches to ensure that the entire root system receives adequate moisture.
Water Less Often, But Longer
Instead of watering daily, water 2–3 times per week, depending on your soil and plant types.
For example, water every Monday and Thursday for 30–60 minutes using a soaker hose, drip irrigation, or slow sprinkler.
Aim for 6–8 Inches Deep
The goal is to moisten the soil 6–8 inches deep, where most roots grow.
After watering, stick a long screwdriver or soil probe into the ground—if it goes in easily, you’ve watered deep enough.
Early Morning Watering
Water between 6 AM and 9 AM to reduce evaporation and allow plants to absorb moisture before peak heat.
Use Mulch to Lock in Moisture
After watering, apply 2–4 inches of mulch around your plants to help the soil retain water longer and reduce surface evaporation.
For Raised Beds or Flower Gardens:
- Water for 45 minutes using a soaker hose Monday & Thursday
- Check soil depth weekly and adjust time if needed
This method trains roots to grow deeper and become more drought-tolerant, which is key to surviving extreme summer heat.
Invest in a Drip Irrigation System
A drip irrigation system is a convenient and efficient way to keep your garden hydrated during hot weather. This system delivers water directly to the base of plants, minimizing water waste through evaporation and runoff. With a drip irrigation system, you can ensure that your plants receive a consistent and controlled amount of water, promoting healthy growth.
Here’s an example of how to invest in a drip irrigation system to keep your garden healthy during the hot summer months while conserving water:
Assess Your Garden's Needs
Identify what areas need watering—raised beds, flower borders, vegetable rows, or container plants. Measure the space and note the number of plants.
Choose a Basic Starter Kit
- Start with a drip irrigation kit (available at hardware stores or online for $30–$100) that includes tubing, emitters, connectors, stakes, and a pressure regulator.
- Look for one labeled for gardens, raised beds, or containers, depending on your setup.
Install the System
- Attach the main tubing to your outdoor faucet or rain barrel.
- Lay the tubing through your garden, anchoring it near plant roots.
- Insert emitters or drip heads where needed (1 per plant or every 12–18 inches for rows).
- Add a timer to automate watering early in the morning.
- Test and Adjust: Turn the system on and check for leaks or clogged emitters.
- Adjust the timer to water 2–3 times a week for 30–60 minutes, depending on soil and plant needs.
- Maintain It Weekly: Clean filters and check emitters to ensure efficient flow throughout the season.
Drip irrigation saves up to 50% more water than sprinklers, reduces disease by keeping foliage dry, and delivers moisture right to the roots—perfect for hot, dry summers.
Monitor Soil Moisture Levels
Regularly check the moisture levels in your soil to determine when it's time to water your garden. You can use a moisture meter or simply stick your finger into the soil to feel for moisture. Avoid overwatering, as this can lead to root rot and other issues. By monitoring soil moisture levels, you can water your garden effectively and prevent water-related problems.
Here are a few effective examples of how to monitor soil moisture levels to help save water during the extreme heat of summer:
1. The Finger Test (Simple & Free)
- Stick your finger 2–3 inches into the soil near your plant.
- If the soil feels dry at your fingertip, it’s time to water.
- If it still feels cool and moist, wait another day.
2. Use a Soil Moisture Meter
- Buy an inexpensive soil moisture meter (typically $10–$20).
- Insert the probe 4–6 inches deep near your plants.
- A dial or digital display will show if the soil is dry, moist, or wet.
- Water only when the meter reads “dry” or on the low end of “moist.
3. Screwdriver or Skewer Method
- Push a long screwdriver or wooden skewer into the soil.
- If it slides in easily, the soil still has moisture.
- If it’s difficult to push in or comes out dry, your garden needs water.
4. Track with a Watering Journal or App
Keep a simple journal or use a gardening app to log:
- Rainfall
- Soil moisture observations
- This helps you avoid overwatering and stick to a deep, infrequent schedule.
By following these expert tips, you can keep your garden hydrated and healthy even in the hottest temperatures. Remember to adjust your watering schedule based on the specific needs of your plants and the weather conditions in your area. With the right approach, you can enjoy a thriving garden throughout the summer months.
Presented by Coach Trina at Dragoyle.com
