Today: Feb 21 , 2020

8 Essentials to a Healthy Autumn Landscape

03 October 2019  

Steps you take now can ensure your garden health for months to come.

It definitely feels like Autumn in the Lain gardens. We haven't lit the pilot light on the fireplace, but there is a chill in the air every morning. There are a few things I do in October that make a difference for better evergreens, more fruits in spring, and flowerbeds that bloom all winter long. Here are my top eight tasks to perform before the end of October for a healthy, stress-free landscape.

Step 1– Aphids hatched this week throughout the town. Look for tiny winged insects flying through the yard; they are aphids. They attach themselves to dogwood, apples, roses, and a host of other landscape plants. Watch for large aphids on trees as well. If the leaves and rocks at the base of trees are glistening as in morning's dew, aphids have begun their assault. Get on them right away by hosing down these pests with specially formulated "Multi-Purpose Insect Spray." It will eliminate aphids from any landscape, or any other bug for that matter. Spray at the foundation to keep away ants and spiders.

Step 2 - The most critical job of fall is also the most straightforward gardening task: feeding everything in our landscapes. The entire yard should be fed within the next few weeks. Stay away from synthetic winterizer plant food. Much safer results are delivered with my 7-4-4 "All Purpose Plant Food." This locally blended natural plant food is more reliable for pets and people alike and is less threatening to our drinking water than synthetic fertilizers. Evergreens will keep their vibrant green color through winter with this Fall feeding, and it's a must for spring bloomers like lilacs and forsythias. Native pinion and ponderosa pines should receive this meal to fend off bark beetles, scale, and aphids. Even houseplants should be given a small taste.

Step 3 – This is the time to treat pinion pines for scale. Each tree gets treated with liquid "Plant Protector," and it doesn't take an arborist to apply this liquid bug killer. Diluted with water in a 2-gallon watering can and used at the base of each evergreen, the roots will absorb it and do the rest. I think of it as an antibiotic for trees. Reapply in March, and you will have great looking pest-free trees in your landscape.

Step 4 – Every fall, I buy next spring's mulch, manure, and shredded bark products and use them as insulating bags. They are perfect to use as cold protection over your valve box lids, around the well house, and around backflow preventers. The garden will need them anyway next spring, so why not get double duty out of those bags of soil amendments? This step can save you from a plumber's bill to repair a frozen water system. 

Step 5– By November trees will be bare and summer flowers dead. Strategically place some blooming autumn plants in your landscape, containers, and vegetable garden, and you'll have flowers in bloom through the end of the year. By the end of the month, plant pansies, kales, mums, violas, broccoli, cabbages, lettuces, and/or cauliflowers to avoid having your landscape looking bare.

Step 6 – When nighttime temperatures drop below 55 degrees, it is time for a cool-weather weed killer. Glyphosate-based weed killers no longer work. Ragweed, dandelions, and all the other nasty autumn weeds are controlled easily by using liquid "Weed Beater Ultra." Spray it on and watch those unwanted plants "melt away”.

Step 7 - If your lawn looks heat-stressed or doggie-damaged, it's best to de-thatch before adding that one last feeding of 'All Purpose Plant Food' 7-4-4. Two weeks after applying the food, add a granular supplement called "Soil Activator." This food-activator combination should keep the lawn green long after your neighbors wish they had done the same. It also encourages growth in a lawn's bare spots.

Step 8 - If you have a rock lawn, apply "Weed & Grass Stopper." Winter weeds like foxtails and dandelions will emerge and become a severe problem just after the holidays. This granular weed stopper prevents weeds from coming back by seed. This is especially important if you missed applying it during this summer's monsoon season. With these minimal maintenance tasks, you'll find your winter-blooming flowers brighter, your evergreens greener, and your spring growth more vibrant. If you have questions about any of these eight steps, please stop by the garden center where my staff and I will be glad to sort out your concerns.

Plant of the week - It's the start of Autumn, and you will find that Prescott Pansies are celebrating their existence! Blooming from Autumn through spring, this clown-faced variety blooms more months of the year than any other mountain flower. These local favorites will bloom like crazy through the end of the year, but for success, the right time of planting is everything. They must be planted before the first frost, so they have time to root fully.

Until next week, I'll see you at the garden center.

Ken Lain can be found throughout the week at Watters Garden Center, 1815 W. Iron Springs Rd in Prescott, or contacted through his web site at or Facebook page,

Watters: Website | Facebook | YouTube | Instagram | Pinterest

Garden Classes


October 5 @ 9:30 am - Gardening for Newcomers  Learn all the mountain secrets to local garden success.  This is an information-packed class guaranteed to increase garden blooms and fruit this year.  Learn about growing zones, frost dates, soils and more; you'll know exactly what to do in the gardens after this class. FREE

Michele and Doug


October 12 @ 9:30 am - Autumn Colors Best Enjoyed at Home - Landscapes in autumn can be stunning, but only with proper planning.  This easy-care advice will bring the silver and blues out of the evergreens, showcasing brilliant bright foliage and crazy colored flowers.  Make this the brightest fall of all!  FREE


October 19 @ 9:30 am - Top 10 Trees and How to Plant them -  Privacy, shade, color, evergreen, and blooms. We cover trees from every angle. With so many choices, picking the perfect tree can seem overwhelming, but not after this class.  Our horticultural team will be on-hand after the class to help with individual tree situations.  Free tree planting guide to all attendees.  FREE


October 25 @ 9:30 pm - Fall ‘To-do‘ list for a Healthy Yard - Get the most out of your landscape with this easy to use checklist of fall care.  Bring the color out of your fall gardens, reduce bugs next spring, or simply put your landscape to bed with these easy to use ideas.  FREE


Ken Lain, the Mountain Gardener

Ken Lain is attracted to sunshine, beauty, happiness, success and health through gardening, and wishes to point the way to others. Throughout the week Ken can be found at Watters Garden Center located at 1815 W. Iron Springs Rd, Prescott, or contacted through his web site at