Tag Archive for: mulch

What do your plants look like in the middle of summer?  Do they thrive despite the hot temperatures?  

Or do they look more like this?

Heatproof Gardening tips

Throw in a heatwave, and your lovely, attractive plants may be suddenly struggling to survive.

Whether you live in the desert Southwest or more temperate climates, this can happen to you if your garden is not prepared for the heat of summer.

So, how do you know if your plants are handling the summer heat?  

Take a walk through your garden during the hottest part of the day and look for signs of wilting leaves as well as yellow or browning leaves.  All of these can indicate heat stress.

The good news is that you can heatproof your landscape and enjoy a garden filled with attractive plants that thrive despite the hot temperatures that summer dishes out.

Here are 5 tips to help you heatproof your garden:

#1. Use native or plants adapted to your climate.

Heatproof Gardening tips

This is perhaps the most important tip for having an attractive, low-maintenance landscape filled with beauty that thrives throughout the entire year.

Native (or adapted) plants have unique characteristics that help them to handle the local climate, including the heat of summer AND the cold of winter.

All too often, we find ourselves with landscapes filled with plants (often with large leaves) that struggle to survive the hot, summer months.  This results in unattractive plants that we work hard to help sustain them until cooler temperatures arrive.  Usually, these plants are best meant to grow in climates with less extreme heat.

Langman's Sage (Leucophyllum langmaniae)

Langman’s Sage (Leucophyllum langmaniae)

Let’s look at an example of an adaptation that this Langman’s sage has that enables it to handle full sun and 110+ temperatures without undue stress.

Notice that the flowers have small hairs.  So do the leaves, giving them a slightly grayish cast.  These tiny hairs help to reflect the sun’s rays, which lowers the temperature of the leaves and flowers.

Mexican Honeysuckle (Justicia spicigera) and Shrubby Germander 'Azurea' (Teucrium fruticans 'Azurea')

Mexican Honeysuckle (Justicia spicigera) and Shrubby Germander ‘Azurea’ (Teucrium fruticans ‘Azurea’)

Another way that plants have to handle the heat is by having small leaves, which limits the amount of water lost, which helps them to deal with hot, dry temperatures.

Here in the desert Southwest, there are many native plants that are used as well as plants from Australia and other arid regions, which have similar climates.

#2. Provide shade

Heatproof Gardening tips

Adding shade to the garden can provide relief from the hot sun as well as cooling air temperatures.  The shade benefits plants and can provide cooling to the house as well.

*It is important to note that it can be hard to grow many plants in dense shade – especially flowering ones.  However, using trees that provide filtered shade provide just enough shade while allowing enough sun through for plants.

#3 Water deeply and infrequently

Heatproof Gardening tips

Plants need water to survive, and not surprisingly, they need the most in the summer.  However, we often water them too often and shallowly for it to do much good.

Shallow watering keeps roots close to the surface of the soil, where the soil temperatures are hot, and the water dries up quickly.

Deep watering is the proper method for irrigating plants because encourages deep root growth where the soil is cooler and stays moister for longer.  As a result, you do not need to water as often.

“Plants that are watered deeply and infrequently are better able to withstand the heat.”

Shrubs should be watered to a depth of 2 feet and perennials and groundcovers to 18 inches.  You can determine how deeply you are watering by inserting a piece of rebar down into the soil (right after you have finished watering) to see how long you need to irrigate.  On average, 2 hours is the length of time to irrigate to the desired depth.  

In my online class, Desert Gardening 101, I teach my students that watering deeply is as important as the time of day that you water. The best time to water is early in the morning.  Watering plants in the afternoon is not as useful since plants allocate their resources at that time toward surviving the stresses of the heat and so they do not take up water as efficiently.  

#4 Mulch around your plants

Heatproof Gardening tips

Not surprisingly, mulch has a variety of benefits and not just in regards to heat proofing your garden.

Mulch serves to help cool soil temperatures in summer while helping to conserve moisture – all important in helping plants thrive despite hot temperatures.

A bonus is that they also help to prevent weeds from taking root.

Heatproof Gardening tips

Let’s take a minute to rethink our definition of what makes an excellent mulch.  

While shredded bark and wood chips may come to mind, did you know that fallen leaves, pine needles, and even fallen flowers can also serve as a mulch?  That is how nature does it.

So, the next time you are tempted to whip out your leaf blower, how about directing it toward the base of your plants where the leaves and flowers can serve as a mulch?

They will also help to improve the soil around your plants as they decay.

#5 Ditch flowers in favor of succulents in containers

Gardening tips

Tip for Heatproof Garden

While growing pretty flowers in containers is relatively simple in fall, winter and spring-summer can be another matter entirely.  Often, it can be hard to grow flowering annuals in pots throughout the hot summer.

The reason for this is that the soil around the roots of container plants is hotter than if grown in the ground.

This is especially true for the outer 6 inches of soil which heats up in response to air temperatures and the hot container.  As a result, annuals can wilt and struggle to produce flowers in summer.

Succulents are a great way to enjoy attractive container plantings throughout the year, not just in summer.  Their ability to store water is what makes them an excellent choice for containers.

Gardening tips

Tip for Heatproof Garden

If you want to grow something else besides succulents, how about trying heat-tolerant shrubs? Bougainvillea does great in pots as does lantana.

Gardening tips

Tip for Heatproof Garden

Another tip for containers is to leave them empty in the summer months and wait until fall to plant them.  

When thinking in terms of growing plants in containers in hot climates, bigger is better – at least 2 feet wide at the top.  The larger the pot, the more soil and therefore, more insulation for the roots from the hot outer zone.

**So what can you do if you do have plants that are struggling in the heat – particularly during a heatwave?  

Other than replacing them, you can provide them with temporary shade such as a patio chair strategically placed so that it protects it against the afternoon sun. A light spraying of water over the plant and surrounding area in the evening can help reduce the temperature – don’t do this when the sun is out, or you may burn the foliage.

How to Help Your Plants Survive a Heatwave

Troy-Bilt Chipper Shredder

I love my garden, filled with trees that provide welcome filtered shade along with flowering shrubs. While my garden gives me joy, it does take maintenance to keep it healthy and looking its best.

Troy-Bilt Chipper Shredder

The primary maintenance chore I have is pruning, which I enjoy doing. 

Troy-Bilt Chipper Shredder

What I don’t like is cleaning up the clippings, and I often ask my kids to drag them to the trash can or the curb for bulk pickup. However, that was then, and I have a new tool to help me with dealing with the aftermath of pruning. My new Troy-Bilt Chipper Shredder will take the stems and small branches and shred them into mulch.

*As a brand ambassador, I was provided the CS4295 Chipper Shredder free of charge, for my honest review.

Troy-Bilt Chipper Shredder

The chipper shredder has two areas where you can insert plant material. The top part is called the ‘hopper’ and is where stems and branches that are less than the width of the pencil are added, which are pulverized into mulch that is expelled into a white bag attached off to the side.

chipper chute

Branches under 2-inches in diameter are fed through the ‘chipper chute’ and are expelled into the collection bag. It was fun to use and I was pleased with how quickly my pile of branches was decreasing in size.

Troy-Bilt Chipper Shredder

In the end, my two large piles were reduced to a much smaller pile of shredded leaves and stems. Instead of throwing out piles of plant clippings, I now have great material for my compost pile. It is also suitable to use as mulch for putting around my plants. However, you’ll want to age the mulch for 3 – 6 months before applying or it can use up the nitrogen that plants need while it breaks down.

Troy-Bilt Chipper Shredder

This photo says it all. My Troy-Bilt Chipper Shredder took two piles of branches, that would have filled up most of my trash can, and reduced them to a small pile of mulch suitable for my garden. 

*Disclosure: As a Troy-Bilt brand ambassador, the chipper shredder was provided to me at no cost by TroyBilt to review for my honest opinion.

Question:  Do you like the way fallen flowers look in the landscape?  

A Carpet of Fallen Flowers

Some people describe the layer of spent blossoms of trees or shrubs as a ‘colorful carpet’ that adds beauty to the landscape.

A Carpet of Fallen Flowers

Or do you feel the pull of your leaf blower calling out to you whenever you see a layer of spent blossoms littering the ground?

For me, I love the beauty of small, fallen flowers.  It is a natural occurrence and benefits the soil and plants as they breakdown.

In spring, palo verde trees are covering the ground throughout the southwest with a yellow carpet.  In winter, red blossoms from Valentine shrubs (Eremophila maculata ‘Valentine’) create a carpet of red and in the summer months, Texas sage, (Leucophyllumspecies) leave a layer of purple in their wake.

Of course, if you have a swimming pool, you may want to clean up the flowers and put them on your compost pile.

So, what about you?  Do you allow the flowers to remain or do you clean them up?