What to do in the Garden in September

I never want summer to end. Who doesn't love those long days and warm nights? The calendar might say fall is near but Indian summer is one of the our best seasons so I love this time of year, too. But then I get all excited when spring rolls around and everything is in bloom. It's all good. I have a check list of some garden tasks  I need to do at this time of year so I better get to them between hiking and trips to the beach.

Fertilize shrubs lightly one last time if you haven't already done so last month. All shrubs, especially broad-leaved evergrimperata_cylindrica_rubrum2eens such as rhododendron, pieris, camellia, hebe, need to calm down, stop growing and harden off to get ready for the winter cold. Some plants have already set next year's buds.

Roses especially appreciate a bit of fertilizer now, encouraging them to bloom another round in October. To keep them blooming make a habit of pinching and pruning off old flowers. Always cut back to an outward facing branchlet with five leaves. There are hormones there that will cause a new rose to grow much sooner than if you cut to one with only three leaves. You can always cut lower on the stem if you need to control height.

Deadhead flowering annuals and perennials in the ground as often as you possibly can. Annuals like zinnias and cosmos will stop blooming if you allow them to go to seed. The same is true of repeat blooming perennials like dahlia, scabiosa, echinacea and lantana. Santa Barbara daisies will bloom late into winter if cut back now.

These plants know they're on this earth to reproduce. If they get a chance to set seed the show's over, they've raised their family. Try to remove fading flowers regularly and you'll be amply rewarded. If you want to start libertiaperennial flowers from seeds this is the time so that they'll  be mature enough to bloom next year.

Now through October, divide summer blooming perennials like agapanthus, coreopsis, daylilies and penstemons that are overgrown and not flowering well.  You can also divide spring blooming perennials like candytuft, columbine, astilbe, bergenia and bleeding heart but sometimes they don't bloom the first spring afterwards due to the energy they use re-establishing themselves.  If you're on  a roll out in the garden, though, go for it now.

It's still a little hot to plant cool season veggies starts in the ground. They appreciate conditions later in September when the soil is still warm but temps have cooled. It is OK to plant seeds of beets, carrots, spinach, arugula, mustard, leeks, onions, peas, radishes and turnips.

If you aren't going to grow vegetables in the garden this fall consider planting a cover crop like crimson clover after you've harvested your summer vegetables.  Next month I'll talk about how to go about doing this and how this benefits your soil.

Cut back berries vines that have produced fruit.  Canes of the current season should be trained in their place.

OLYMPUS DIGITAL CAMERASpider mites are especially prolific during hot, dry weather.  Sometimes you don't even know how bad the infestation is until all your leaves are pale with stippling.  Periodically rinse dust and dirt off leaves with water.  Spray the undersides of infected leaves with organics like insecticidal soap switching to neem oil if they build up a resistance to one of the pesticides. 

Now that you've taken care of your chores reward yourself by  to your garden for color in late summer through fall. Take a look at the garden areas that aren't working for you and replant. Good choices include aster, chrysanthemum, coreopsis, and gaillardia. Abutilon also called Flowering Maple come in so many colors that you probably need another one in your garden.  Petite Pink gaura looks fabulous planted near the burgundy foliage of a loropetalum. Don't overlook the color of other foliage plants like Orange Libertia and Japanese bloodgrass in the garden.

One last to do:  Make a journal entry celebrating the best things about your garden this year. 
 

Lessons from the Sierra Nevada

Lake Mary2Maybe we can't improve on Mother Nature but can we learn from her to make our own gardens more beautiful. My late summer travels this year took me to Lake Mary in the Mammoth Lakes area where I began to get ideas. This small Sierra lake formed in a depression in the glacial moraine below majestic Crystal Crag. Dozens of small streams keep the meadows blooming with wildflowers even in August. Granite slabs and obsidian domes the size of small states create an impressive landscape. Everywhere I looked I  saw how the plants, stone and water came together to make a combination that would look incredible in a regular garden.

Horseshoe Lake nearby was particularly fascinating for another reason. Back in 1990 the pines near the lake began to die off. Drought and insect infestation were first suspected but were found not to be the cause. It wasn't until 1994 that a soil survey revealed an exceptionally high concentration of carbon dioxide. The trees were being killed by CO2 in their root zone.

What caused such high concentrations of this gas? A swarm of earthquakes in 1989 allowed magma to push up from deep within the earth into tiny cracks causing limestone-rich rocks beneath Mammoth Mountain to be heated and release carbon dioxide gas. We also live in earthquake country. Thankfully this has never happened around here.

The art of bonsai involves creating nature in miniature. The Eastern Sierra does it on an immense scale. The boulders are huge beside the trail, the conifers towering above you as you hike. You can take this same look and scale it down to garden-size.

Evergreen conifers are often overlooked as additions to the landscape. If a white fir or bristlecone pine won't fit into your backyard there are many smaller types that provide year round structure. Maybe a 4 foot golden Feelin' Sunny deodar cedar would look spectacular in a small border, rock garden or container. Or how about a dwarf Wilma Goldcrest Monterey cypress against a backdrop of trees or shrubs with red or purple foliage? Don't overlook these elegant workhorses in the garden.

Pink Sierra Currants, adorned with shiny, translucent fruits were ripe for the picking as I walked along the trail on the way to Box Lake in the Rock Creek area. This currant is similar to our familiar red-flowering currant but is a smaller bush. I found it growing in moist areas as well as dry spots and would do well in any garden.

Blue Sierra lupine, Crimson columbine, blue Sierra Fringed gentian, pyrola or pink wintergreen and spice bush or calycanthus occidentals are just a few of the wildflowers still blooming in profusion. Given similar conditions all these beautiful flowers will grow in your garden. Tucked next to an accent rock you can have the Sierras right out your own window.

The diversity of plants on the eastern side of the Sierra is made possible by three vegetative communities: the Sierra Nevada range, the Great Basin and the North Mojave Desert. Our own area is rich also in plant species. Our cool moist coastal conditions and warm dry chaparral allow us to grow an amazing number of different kinds of plants. Enjoy all that your garden can be.
 

Let Your Garden Sing

waterfall2Each time I’m in my garden it’s a different experience. The familiar buzz of hummingbird wings brings a smile to my face. Sometimes it’s the silence that gets my attention. Where are the chirping songbirds or the raucous scolding of the jays? Where is the wind, the rustling of the forest grass leaves? Other times the quaking of the redwood boughs a hundred feet up makes the garden come alive like giant wind chimes. Sound adds dimension to the garden.

I consider the music of the garden as well as plants and people when developing a design. I’m not talking about the popping sounds that corn makes when they don’t have enough water. Or as it matures, increase in weight, the leaves losing moisture and becoming more brittle, a puff of wind causing the stalks to strike each other and produce a spectrum of sound. Or when lupine seed pods explode with enough force it sounds like someone throwing stones against a fence.

No, I’m talking about how water, wind and wildlife play a big role in the music of a garden. Even the sound of crunching as you walk on a gravel path brings your garden to life.

The sound of moving water in the garden not only attracts birds but soothes the soul. It can drown out unwanted neighborhood noise or sound as subtle as a violin. I enjoyed a table top fountain with a bamboo deer scare for many years until the raccoons discovered it. The sound was iOLYMPUS DIGITAL CAMERAncredibly soothing on a hot day. Pondless waterfalls are easier to maintain if you aren’t interested in fish or water plants. Small recirculating garden fountains can be placed on your deck or patio or tucked into garden beds. Urn and jar fountains offer a hint of bubbling water and the soothing sound of flowing water to your landscape.

Japanese_forest_grass 2A friend of mine has a different wind chime at each corner of his house. He can tell the direction of the wind, the intensity, even potential changes in the weather just by listening to the chimes. There are bamboo chimes available that produce a peaceful relaxing sound or musically tuned metal tubes or those made of wood or shells. Enhance the wind with these lulling sounds.

The wind is different in each season. Summer breezes cool you and also catch on a billowy plant to bring not just sound but movement. Ornamental grasses are the stars of the garden when the wind rustles through the leaves and seed heads. Loose shrubs like butterfly bush, hydrangea, spirea, spice bush and bush anemone also sway in the wind and bring sound to the garden. Allow a larger plant like Japanese maple to spill into the path where you will brush against it slightly to create that sound you hear in the forest when you walk. Enjoy the rattle of seeds in pods like those of iris as they dry during the summer.

The sounds of wildlife are my favorites in the garden. Any type of pond or waterfall with some plants growing in or adjacent will attract tree frogs. Buzzing insects collect nectar and pollinate flowers. My two simple birdbaths are a magnet for varied thrush, spotted towhees, chickadees, warblers, kinglets and goldfinches. The rest of their time they are performing expert insect control elsewhere in my garden .Hummingbirds are frequent visitors as they fight for territory and feed on spiders and nectar rich flowers.

Let your garden to make music.

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