Category: Accidental Cottage Garden

To Do in the Garden: September 2026

On By durhammastergardenersIn Accidental Cottage Garden, Uncategorized

By Gary Crispell, NC State Extension Master Gardener SM volunteer of Durham County (aka the Accidental Cottage Gardener)

Welcome to September. The month North Carolina natives and long-time residents have looked forward to since late May (and maybe even longer this year).  It is the month we hope will bring us cooler temperatures or at least less humidity.  This year we shall see.  After ten months of parching drought we had one month of three months’ rain.  August was back to being a little dry.  September…who knows?  Climate change has scrambled things a bit.  At least we are not literally burning up nor are we drowning.  See, it’s all good (well, mostly) in this the “goodliest state.”

The Accidental Cottage Garden is just full of itself, what with all the rain and sunshine.  Once again there are twenty-one species in bloom.  The goal of zinnias (Zinnia elegans) and cosmos (Cosmos sulphureus & C. bipinnata) for cut flower arrangements has been attained (and attained and attained).  Apparently ¼ pound of zinnia seeds and 2 ounces of cosmos for 150 sq. ft. is overkill.  Who knew?  They are right pretty, though.  The list of all the others will be at the end of the post. 

Zinnias and Cosmos continue to thrive in the ACG, even with the heat and drought. (Image credit: Gary Crispell)

Lawn Care

Time to rejuvenate cool season lawns (tall fescue, bluegrass, perennial rye).  Unless you irrigated this summer, they probably look rather sad.  We assume that you did avail yourself of the FREE SOIL TEST service from NCDOA this year and know how much lime and N-P-K (nitrogen, phosphorus, potassium) fertilizer you need to add to your soil.  So, there are basically three approaches to rejuvenation.

They all start with spreading the lime and fertilizer over the yard.  The first method is for those of you who only have some relatively small bare patches.  Loosen the soil in the areas to be reseeded, scatter seed on the loose soil and tamp it down (Not stomp…just walk over it firmly.).  Spread a light covering of wheat straw over any patch larger than one square foot.  Keep moist until germination and then water thoroughly as needed to give it about an inch of water per week.

Method two involves a core aerator.  Spread chemicals as above and core aerate the lawn twice in perpendicular directions.  Spread seed over entire lawn and cover large bare areas with wheat straw.  Water as above.

The third method is drastic.  It is used when your lawn looks like my backyard…totally nekkid.  Spread lime and fertilizer then till up the whole yard.  Spread seed and roll yard to achieve optimal seed/soil contact.  Cover yard with wheat straw and water as above.  The book says all this should be done by the second week of October.  The book ain’t wrong.  A little conservative maybe, but not wrong.

 Do not fertilize any warm season grasses (Bermuda, zoysia, centipede) anymore this year.  They are getting ready for a long winter’s nap and unlike bears they do not need to fatten up.

Grub control efforts are still worthwhile until the middle of the month when the grubs, too, are going into hibernation (having already fattened up on your lawn’s roots).

Pruning

Nope.  Nicht.  Non.  Nyet. No!  Sharpen the pruning shears and loppers and oil ‘em up then hang ‘em up until Black Friday or Boxing Day even.

Spraying

The same culprits that you were saying bad things about in August are still out there—all of them and most likely in the same places they were then.  They are tenaciously pernicious.  Get them!  I shall forthwith reveal their identities and their likely hideouts.  Wooly adelgids will be creeping around hemlocks while spider mites are not so discerning.  They will lurk on the underside of any coniferous evergreen’s needlelike leaves and on most other plants that might be under stress.  (They have no mercy.)  Tea scales will be found on euonymus and camellias.  These will either have to sprayed with a horticultural oil to smother them or you can pick them off individually and smush them.  Well, not necessarily with your bare fingers.  That is rather yucky.  Lace bugs will be hanging out on pyracantha and azaleas, especially those growing in sunny locations.  (Azaleas are an understory plant, after all.)

Most tree species are fed upon by spider mites (NC State Extension) including spruce and oak.

As always, continue any rose maintenance program.

Propagation

Here is your chance to get dirt under your fingernails.  I know you want to.

Dig up spring-flowering bulbs and tubers and rhizomes and divide them.  Daffodils really like the attention as do irises and day lilies.  The reward you get in the spring will more than compensate for having to get your nails done again. (Real men aren’t afraid of the manicurist.)

Peonies that need transplanting can receive that attention now.  Dig a big hole and a big root ball.  Just be aware of not planting too deep.  Only as deep as the hole they came out of.  Cut back any old stems and mulch well.

OTHER STUFF TO DO SHOULD SEPTEMBER TURN OUT TO BE ABSOLUTELY SPECTACULAR

It could happen, you know.  It’d be a shame to get to October before you realized that September had been spectacular.  Stay aware.

It’s not too late to plant a fall garden.

Go camping with the grandkids.  

Get the firepit ready for that first crisp fall evening.

Just go outside and revel in the goodness and wonder of nature.

Remember: FALL IS FOR PLANTING

ACG PLANT LIST:

  • Black-eyed susan (Rudbeckia hirta)
  • Balloon flower (Platycodon grandiflorus)
  • Blanket flower (Gallardia pulchella)
  • African marigold (Tagetes erecta)
  • Cosmos (Cosmos sulphureus)
  • C. bipinnata
  • Purple coneflower (Echinacea purpurea)
  • Zinnia ` (Zinnia elegans)
  • Evening primrose (Oenothera lumarkiana)
  • Chinese forget-me-not (Cynoglossum amabile)
  • Canadian goldenrod (Solidago altissima)
  • Common goldenrod (S. canadensis)
  • Canna lily (Canna x generalis)
  • Butterfly bush (Buddleia davidii)
  • Cypress vine (Ipomoea quamoclit)
  • Prairie sunflower (Helianthus petiolaris)
  • Hydrangea Limelight (Hydrangea macrophila ‘Limelight’)
  • Resindot sunflower (Helianthus resinosus)
  • False vervain (Verbena carnea)
  • Common tradescantia (Tradescantia virginiana)
  • Chinese chives (Allium tuberosum)

Additional Reading and Resources

Want a quick tutorial on how to plant spring flowering bulbs?

https://forsyth.ces.ncsu.edu/news/fall-is-the-time-to-add-flowering-bulbs-in-your-garden

Editor: Martha Keehner Engelke

Shortlink: https://wp.me/p2nIr1-826

To Do in the Garden: August 2026

On By durhammastergardenersIn Accidental Cottage Garden, garden tasks, Gardening calendar, gardening during drought, gardening in NC, monthly garden tasks, Uncategorized

By Gary Crispell, NC State Extension Master Gardener SM volunteer of Durham County (aka the Accidental Cottage Gardener)

So, after nearly a year of minimal to no rain, we have been deluged.  Not complaining here, but it sure would be nice to spread the precipitation out just a little more evenly.  At deadline time 8.64” of the stuff has passed through the rain gauge with more predicted between now and the end of July.  Needless to say, (but I’m gonna say it anyway) the Accidental Cottage Garden is bonkers.  There are 19 varieties of plants in bloom.  They are listed at the end of the post.

Zinnias and Cosmos are easy to start from seed and bloom abundantly in the Accidental Cottage Garden despite the weird weather. (Image credit: Gary Crispell)

All these plants have been remarkably nonchalant about the drought.  They looked sad for a while, but as soon as they got a drink…they took off.  The seeds that I sowed in April, Zinnia (Zinnia elegans) and Cosmos (Cosmos bipinnata), and that I stopped watering in mid-May are just fine, thank you.  Bloomin’ their li’l hearts out, they are.

Enough about my compact world.  The calendar is what you came for and here it is.

Lawn Care

Several species of grubs are actively feasting on lawn grass roots (probably yours) this time of the year.  If you notice fist size brown spots on your lawn, it might just be grubs.  Carefully dig up a spot to see if there is a grub down there.  They are usually white or cream colored with a darker head.  They are the larvae of various beetles, including the Japanese kind.  There are several products on the market with which to treat them (i.e., kill ‘em dead).  There are both liquid and granular products.  Always read the label and follow the instructions. If you plan to renovate or reseed a cool season grass (fescue, bluegrass, perennial rye) lawn, then toward the end of the month is the time to prep (spray out weeds, core aerate, amend the soil, etc.) the area in question.

Fertilizing

If you are growing strawberries, they would be ecstatic if you threw a little nitrogen fertilizer in their general direction. DO NOT, he repeated, fertilize trees or shrubs between now and December at which time you may give them their holiday bonus in balanced fertilizer pellets.

Planting

Do you like to start plants from seed?  It is fun to watch them sprout and develop. So, have I got a present for you!  It’s time to get dirt under your fingernails and your shirt and shorts dirty.  Start by sowing pansy seeds in flats.  Pick a variety you can’t get at the big box store and be the envy of your neighbors when you set them out in September.  There are also several perennials that can be direct sown now to get a jump on spring: Stokes aster (Stokesia leavis), hollyhock (Alcea rosea), and larkspur (Delphinium elatum and several more species) are good ones to try.  There are many others.  Search “perennial seeds” to learn more.  Prep the bed by lightly loosening the soil surface.  (No more deep tilling.  Leave the sequestered carbon where it is.)  Then sow the seeds per instructions on the package (or YouTube, naturally).

Plant a fall garden and eat fresh veggies for Thanksgiving.  Salad greens such as Chinese cabbage, kale, many lettuces, arugula, and mustard will survive frost and light freezes.  Root crops like beets, turnips, rutabagas, radishes and carrots will keep you in fresh vegetables nearly to the winter solstice.  Other fast-growing veggies like winter squashes and cucumbers will be a pleasant surprise for your Thanksgiving dinner guests.

Pruning

Forget I even mentioned it.  I would leave this topic blank, but that would raise more questions than telling you to put away all the pruning equipment until after Thanksgiving.  The one exception would be if a named tropical cyclone lays waste to your landscape.  In that case pruning would be appropriate.  (The HOA would no doubt insist.)

Spraying

Not a whole lot different from July.  The same heat-seeking, sap sucking, miserable insects and arachnids that found your garden to be a delectable feast in July are still there and many of them will be there until frost.  Deal with it.  Oh, right.  Here’s how.  Coniferous evergreens (juniper, cryptomeria, chamaecyparis, arborvitae, Leyland cypress, etc.) are a favorite target for spider mites.  Azaleas and pyracantha will still be hosting lace bugs which are active year-round whenever leaf surface temperatures are above 40 degrees F.  And anything and everything actively growing will attract aphids.

While we’re here (talking about insects) let’s have a conversation (monologue, actually) about white flies.  For years they were the bane of my existence.  I could not rid our hibiscus of them.  This was serious because we have four hibiscus plants in 25-gallon pots.  Them suckers would be 8 feet tall if’n I didn’t cut ‘em back every winter afore puttin’ ‘em in the garage (which seriously crowds the Mustang).  They get wheeled out whenever there are going to be three or four nights above freezing.  So, you see, we kinda like our hibiscus.  Back to the dratted whiteflies.  They are pernicious little…well, you know where that was going.  I finally had success using an organic horticultural oil.  It smothers all five (yes, five) stages of their life cycle (egg, crawler, nymph, pupae, adult).  There are numerous other lethal chemicals available.  See NCSU Entomology Insect Notes: Greenhouse Whitefly; Dr. Steven Frank and Dr. James Baker professors of entomology and plant pathology.

Only spray when necessary.  Know your enemy (pest I.D.).  ALWAYS read the label and FOLLOW the instructions.  Did I repeat myself?  It’s important.  That’s why.  Stay safe.  Wear the proper clothing and equipment.  This “stuff” can kill you or at least make you very ill.  Be smart.  I know you are.  You read this.

Propagation

You can still take cuttings of most trees and shrubs.

Purple coneflower is a star in the late summer garden. (Image credit: Gary Crispell)

So, if you really love the August heat you can do these:

Walk around the yard with your landscape plan (Everyone has one, right?) to see if there are changes you want to make.

Start a neighborhood pool concerning when the next rainstorm will pass by to the north or south.

Install an outdoor shower and live under it.

Catch the odd not blistering evening and dine al fresco on the deck or patio.

Stay hydrated. Cool and safe.  September is just around the corner.

Accidental Cottage Gardener Plant List:

  • Black-eyed susan (Rudbeckia hirta)
  • Balloon flower (Platycodon grandiflorus)
  • Daylily (Hemerocallis x “August Flame”)
  • Blanket flower (Gallardia pulchella)
  • African marigold (Tagetes erecta)
  • Cosmos (Cosmos sulphureus, C. bipinnata)
  • Purple coneflower (Echinacea purpurea)
  • Zinnia (Zinnia elegans)
  • Evening primrose (Oenothera lumarkiana)
  • Chinese forget-me-not (Cynoglossum amabile)
  • Canadian goldenrod (Solidago altissima)
  • Canna lily (Canna x generalis)
  • Butterfly bush (Buddleia davidii)
  • Cypress vine (Ipomoea quamoclit)
  • Mexican hat (Ratibida columnifera)
  • Prairie sunflower (Helianthus petiolaris)
  • Hydrangea “Limelight” (Hydrangea macrophila ‘Limelight’)

Additional Reading and Resources

Essential Gardening Tips for Drought Conditions

Article shortlink: https://wp.me/p2nIr1-7TN

Edited by Astrid Cook-Dail, NC State Extension Master GardenerSM volunteer of Durham County