r/DenverGardener • • Jan 07 '26

✅🗓️ Our 2026 free gardening webinar schedule is live! 🥳

31 Upvotes
We know what we're doing the second Wednesday of December 2026 at noon, do you?

Our horticulture experts are ready for all 2026 has to bring, including our free gardening webinar series!

Due to high demand, gardening webinars have at times exceeded our limit of 500 live participants. So, if you want to participate live, sign up and join early! Registration is free and required to attend.

Webinar recordings are posted roughly within a week or two at https://planttalk.colostate.edu/webinars/

* drumroll please *

Indoor Plants: An Introductory Overview for New Plant Parents

Asian Jumping Worm in Colorado: What You Need to Know

2025 “Best Of” Plants from the CSU Trial Gardens

Get in the Zone: Do hardiness zones really matter?

The Basics of Fruit Tree Production

Myths, Mistakes, and Misunderstood Insects

All the Common Weeds and What They Tell You

Native Plants are Imaginary

Showstoppers and Habitat Heroes: Native Plants for your Home Landscape

Don’t Get Hosed with Landscape Irrigation

Spooky Plant Pathogens: Creepy Cases from the Garden

Scenes from a Cemetery: Plant Edition

Reading the Market for Plant Trends


r/DenverGardener • • Mar 03 '24

Bindweed Info Dump

113 Upvotes

I have a large yard where almost no area is free of bindweed, and several areas are densely packed infestations. >_<; As spring comes, I dread the day my old enemy emerges.... Let's pool our knowledge! I've been fighting it for two years and doing a ton of research. Here's my info sheet: https://docs.google.com/document/d/1-bDNRYYo7yRIqAq6pUejPl6MIcFP8W9q1ZVYC99FZx8/edit?usp=sharing

Some highlights from that:
-Bindweed mites are best for dry/un-irrigated areas like vacant lots, and there's a long waitlist
-Pulling it stimulates growth (but if you can stay on top pulling it that helps to weaken it)
-It will grow up through, around, sideways whatever you try to cover it with. At least up to 20 feet sideways.
-Glyphosate and 2,4-D amine weed killer can be effective but not a guarantee by themselves.
-GOOD NEWS: Some Colorado folks have actually found success by planting perennial shrubs and grasses. Another great reason to go xeric!

What have you seen be successful? If anything, ha. Especially curious if you solved more than a small patch.

What have you seen fail? Even something that seemed like it should work? One person said it grew through a 20 feet pile of mulch.

Edited to Add: My neighbor said he found it successfully burrowing into concrete, for crying out loud.


r/DenverGardener • • 9h ago

Large amounts of bugs?

11 Upvotes

Hello everyone, it seems like I am having a large infestation of tiny little flying bugs in my yard. They are all over my windows and I'm wondering if I should be worried or if this is just a vigorous year for bugs.

They look like little tiny flies? Potential midges maybe? Unsure.

Thanks for helping me out.


r/DenverGardener • • 13h ago

mixed advice on whether to cover or not 😅

5 Upvotes

Hi! I know there are already a few posts about tonight’s potential frost but they seemed more vegetable and tree related, so hopefully this is okay!

I planted the Pollinator Peak Garden in a Box a couple months ago (late August). Other than one bee balm, they all seem to be thriving (or at least surviving). This is my first attempt at gardening ever in my life so I want to make sure I’m doing things as correctly as possible.

I asked my mom (major green thumb but in the Midwest) and my good friend (also green thumb in the Midwest but with experience gardening here) and they gave me mixed advice. So I’m looking for more opinions 😬

Do I cover the plants tonight? With what? Bags or a sheet? The packet that came with the plants says to trim the bee balm to 6” in the late fall. Should I do that before tonight or will it mess something up trimming so close to a frost?

Thanks for any advice 💚


r/DenverGardener • • 1d ago

First fall rainstorm

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108 Upvotes

Sup Denver gardener fam! Hope you’ll accept a green mountain/ golden submission. Planted 90% of this garden as summer was winding down this year. It’s been such a fun journey looking at other posts here and finding things that would work well in the garden.

When my wife and I bought this house a few years ago the front yard had like three ornamental grasses planted that were all dead, it was atrocious. Since then I’ve done trial and error, so many fallen soldiers due to bunnies in my neighborhood. Did all this myself from research to planting and it’s been a joy of a project particularly this summer. Tried to source mostly through plant select but there are definitely some non natives and red headed step children I planted before learning more. Anyways, full list is below. I’d love feedback but if you’re mean to me I’ll rip all this up and throw it away so pls be sweet.

We’ve had hummingbirds in my front yard the past few years and that’s what inspired all this. This past summer we had a pair in the front yard and backyard, they loved the salvia along other things. Monarchs are showing up too, I got my monarch watch sign on proud display! Anyways, here’s the garden:

Blanket flower- Arizona red shades (3)
Little Trudy catmint (1)
Montbretia ‘Lucifer’ (1)
Delphinium (1)
Sunset foxglove (2)
Amethyst falls American wisteria (1)
Dalmatian purple foxglove (2)
Silvery lupine (2)
Goldenrod ‘little miss sunshine’ (2)
Goldenrod ‘little lemon’ (4)
Fireworks Goldenrod (1)
Denver gold Columbine (2)
Black- eyed Susan Denver daisy (2)
Summer sparkles baby’s breath ‘gypsophila’ (1)
Leucanthemum sweet daisy Jane (1)
Bases Loaded Amsonia (1)
Stone crop ‘autumn joy’ (3)
Mr. Good bud stonecrop (2)
Bee balm ‘garden view scarlet’ (2)
Gayfeather ‘floristan white’ (1)
Gayfeather ‘kobold’ (1)
Dark Towers Penstemon (1)
First love Dianthus (1)
Goldflame Honeysuckle (1)
Rabbitbrush dwarf blue (1)
Meadow sage lyrical rose (3)
Meadow sage marvel blue (2)
Mesa yellow blanket flower (4)
Blue ice blue star (1)
Bushy aster “woods purple” (2)
Bushy aster “woods pink” (2)
“Woods light blue” aster (2)
Beard tongue pine leaf red (1)
Aster “woods blue” (1)
Furman’s red salvia (1)
PowWow wild berry coneflower (1)
PowWow White coneflower (2-4?)
Cheyenne spirit Coneflower (1)
Coneflower double scoop bubble gum (1)
Whispurr pink nepeta (2)
Sombrero lemon yellow improved coneflower (2-3?)
Sombrero Sangrita Coneflower (1)
Sombrero adobe orange coneflower (1)
Onion ‘millennium’ (3)
Coral baby penstemon (1)
Mesa yellow blanket flower
Ultra violet salvia (3)
Maltese cross lychnis (2)
Veronica mauve moody blues speedwell (2)
Chinese wisteria (2)
Salvia vermillion bluffs (1)
Hardy fuchsia (2)
Lupine ‘gallery mix’ (1)
Leucanthemum sweet daisy jane (2)
Granita raspberry ice plant (1)
Granita orange ice plant (2)
Ice plant ‘gold nugget’ (4)
Ice plant ‘wheels of wonder white improved (2)
Ice plant delosperma nubigerum (1)
Ice plant delosperma floribunda (2)
Fire spinner ice plant (1?)
Red mountain flame ice plant (3)
Table mountain ice plant (1)
Tiny dancer dwarf globe plant (1)
Red rocks penstemon (2)
Unforgettable hummingbird trumpet (2)
Coronado red hyssop (2)
Leucanthemum sweet daisy jane
Pikes peak purple penstemon (2)
Rocky Mountain penstemon (2)
Penstemon windwalker garnet (2)
Purple mtn sun daisy (2)
Mandy sun daisy (2)
Agastache Sonoran sunset (1)
Agastache hybrid- dwarf hummingbird mint poquito butter yellow (1)
Hyssop hummingbird mint ‘kudos coral’ (2)
Showy milkweed- ascelpias speciosa (4)
Multi mum stellar trio (1)
Asclepius speciosa ‘milkweed’ (4)
Confetti garden Leo mum (3)
Guara belleza dark pink (1)
Butterfly weed (2)
Corkscrew ornamental onion (3)
Garden phlox super ka-pow white (1)
Garden phlox super ka-pow coral (1)
‘Flame Pro Pink Pop’ garden phlox (1)
Phlox subulata creeping phlox “scarlet flame” (1)
Phlox subulata creeping phlox “emerald blue” (1)
Crystal river Veronica (1)
Snowmass blue- eyed Veronica (1)
Chocolate flower (2)
Spanish peaks foxglove (1)
Colorado gold gazania (1)
Jupiters beard (pink and white 3-4)
Butterfly bush (don’t remember the variety 1)


r/DenverGardener • • 16h ago

Tonight’s freeze

5 Upvotes

I just planted a baby Catalpa and a baby maple about a month ago. Do I need to cover them completely? Sorry for my ignorance I I’m used to new plants but not trees.


r/DenverGardener • • 16h ago

Late planting- advice on how to overwinter starts

4 Upvotes

ADVICE NEEDED: what is the best way to overwinter these babies?

Due to a 3+ week delay in receiving starts from High Country Gardens (grrr...), I am getting starts this week. Obviously its late seasonally to plant them. We got snow last night (6,500ft).

My choices are: 1) plant them in prepped bed and hope, 2) leave in pots and "plant" in soil overwinter outside to plant in final places in spring to protect tap roots in existing starter pots, 3) bring into garage in starter pots for overwinter (full sun, approx 50degrees all winter), 4) bring into house like houseplants.

Here are the species:
Gamma grass, Rice grass, Yucca, Sage, Red hot poker, Common Sotol (Dasylirion), Curry Plant (Helichrysum italicum)


r/DenverGardener • • 1d ago

ISO potted African Marigolds

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19 Upvotes

Anyone happen to see potted marigolds at any nurseries/stores lately? I have about 10 potted plants that had big fluffy blooms mid-August but the new blooms are much smaller and looser. I may have started them too early, indoors late April.

The couple of in-ground volunteers are doing great but protecting them from frost until Nov 1 is a pain, which is why I only did pots this year. I’ll dig up the in-ground ones tomorrow but I would still like a few more to adorn my Day the Dead altar.


r/DenverGardener • • 1d ago

Most Front Range lawn rebate money is gone for 2026. Here's what's still open and what's known about 2027

18 Upvotes

We pulled out our front lawn this year. Most of it had already died during a construction project, and it turns out that alone can disqualify you (Aurora, for one, requires healthy grass when you apply). I also learned too late that most of these programs want you to apply before you touch anything, and the money is usually gone by summer anyway.

So I went through every lawn replacement program I could find on the Front Range. Short version: most of it is spent for the year, but Aurora opens a new round Nov 1.

Aurora (GRIP): applications Nov 1 to Jan 1, then install by July 31, 2027. $3 per sq ft for a water-wise yard, no per-project cap published. Two rules that trip people up:

  • Don't remove your grass until your application, design and plant list are approved. It's not retroactive.
  • The grass has to be alive when you apply. Dormant is fine, dead or weedy isn't.

Thornton: up to $2 per sq ft, but proje Oct 31.

For 2027:

Nobody has posted dates yet except Aurora. Highlands Ranch usually opens Mar 1. Fort Collins says to check back in January, Castle Rock expeche Resource Central cities (Boulder,Lakewood, Westminster, Arvada, Longmont) and Colorado Springs say spring. Denver Water hasn't said.

Most programs open in late winter or spring and fill by summer, so winter is the time to plan.

Full list with what each pays, the official links, and what your HOA can and can't say about it:
coloradogardening.co/lawn-replacement-rebates-colorado

If I got your city wrong or missed a program, tell me and I'll fix it.


r/DenverGardener • • 1d ago

Safe to wait on draining rain barrels?

11 Upvotes

We drain our rain barrels when freezing weather hits and move them away from the downspouts so that they won't crack from the expanding ice. It doesn't look like the temperature will go much below freezing this week. Do you think we are right to wait to drain them until it gets colder?


r/DenverGardener • • 1d ago

Local nurseries that still have perennials in stock?

3 Upvotes

Hi Gardeners, I would like to get some floral perennials to plant, but I won’t have time to go to nurseries all over the metro area before the season ends. Has anyone been to a nursery recently and knows that they definitely have a good number of perennials still in stock? I was at Home Depot recently and they actually still had a fair number of plants but I’m interested in actual nurseries too.

thanks!


r/DenverGardener • • 2d ago

Anyone blowing out their drip system?

24 Upvotes

This is our first year with our drip system. We have an underground 3/4 inch system which connects to a lot of 1/4 inch above ground emitter lines that go all over the yard. One zone handles all the perennials, and the other handles the raised beds. The perennial drip lines are all under between 1-4 inches of mulch. The garden ones are on top of the soil.

So, with the temps hovering around freezing for one or two nights (seemingly briefly, depending on the forecast) are you all blowing out your lines?

Part of me thinks it won't be cold enough for long enough, and I'll be able to keep the drip running another couple weeks before the real freeze comes in. The other part of me is afraid I'll have a bunch of broken emitters come spring if I don't do it now...

Help!


r/DenverGardener • • 2d ago

Frost?

30 Upvotes

What’s everyone doing to prepare for the light frost Thursday pm? I’m planning on picking tomatoes peppers and cukes… maybe cover a couple things to get a couple more weeks.


r/DenverGardener • • 2d ago

Any hope for my peppers to ripen before it gets too cold?

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20 Upvotes

I’ve got red and yellow bell peppers that are growing to be very big, but they just aren’t ripening. I’m worried with the upcoming weather that I’m going to lose them. If I don’t do something soon, can I still eat them unripened? I’ll definitely be saving the seeds for next year. It seems like such a waste - is it best to harvest them now before the cold hits?

UPDATE: I made stuffed peppers with them and they were 🔥


r/DenverGardener • • 3d ago

Who said you can’t grow figs in Colorado?

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148 Upvotes

Sunrise Celeste on a second year in ground plant. Hopefully we get a ton more next year but it tasted great


r/DenverGardener • • 3d ago

Disappointment with High Country Gardens

43 Upvotes

I've been living in Aurora for over 20 years and have been buying plants from High Country Gardens most of that time as I've slowly replaced lawn with low-water perennials. However this year I ordered one of their pre-planned gardens and it arrived later than the scheduled time without communication, and was packaged differently so that the plants arrived overturned and intertwined with loose soil in the box and some plants smashed. And their customer service email is now answered (poorly) by AI. Has anyone else been disappointed by them this year?


r/DenverGardener • • 3d ago

Catio bindweed mitigation

7 Upvotes

I have a 15x30ft catio area where the dirt has a lot of bindweed growing over it. I want to plant some kind of cover to lessen the bindweed. My two cats use parts of the dirt as a litter box and it's hard to direct them on where in the dirt I'd like them to pee and poop in. Can planting a cover crop still work here? I don't need it to look perfect and uniform, just want to lessen the bindweed.


r/DenverGardener • • 3d ago

Is this another presentation of TSWV?

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2 Upvotes

Finally getting ripening tomatoes on my branywines, but the first one looks like this.


r/DenverGardener • • 3d ago

Love seeing how bare branches turn into a stunning flower tunnel.

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12 Upvotes

r/DenverGardener • • 4d ago

Can I make this work?

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10 Upvotes

I want to reuse this flagstone as mach as possible. Partly to make a little pad, partly to widen the walking surface along the sidewalk. Also going to use the dirt excavated to make a swale with odd shaped stones for a little rock garden as a border.
I have a xeriscape garden in a box coming to plant and will mulch everything on this side w/fresh maple chips. Im trying for a low budget xeriscape yard but dont want it to look too barnyardy/ghetto.


r/DenverGardener • • 4d ago

Fresh Tomato Sauce

6 Upvotes

So I cooked a bunch of tomatoes yesterday and because I'm running out of freezer space for marinara and pizza sauce, I cooked it much longer (usually reduce moisture by about half) before straining the seeds and skin.

When I drained it, I chose to pour off the runny liquid that comes out first in order to keep the tomato paste really thick. I assumed, from the consistency when it was hot, that this was a watery liquid. What I found when it cooled is that it's really sweet and concentrated flavor, but the color of tomato juice without the pulp.

Any thoughts on what I can do with this liquid or should I just mix it into my paste before freezing in ice cube trays?

TIA!


r/DenverGardener • • 4d ago

Can I make this work?

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3 Upvotes

I want to reuse this flagstone as mach as possible. Partly to make a little pad, partly to widen the walking surface along the sidewalk. Also going to use the dirt excavated to make a swale with odd shaped stones for a little rock garden as a border.
I have a xeriscape garden in a box coming to plant and will mulch everything on this side w/fresh maple chips. Im trying for a low budget xeriscape yard but dont want it to look too barnyardy/ghetto.


r/DenverGardener • • 4d ago

Wildflowers in raised beds

31 Upvotes

I'm giving up on growing vegetables in two shallow raised beds I have. I would love to plant wildflowers/pollinator plants to make my own bouquets throughout the summer. I'd love to learn from this group whether anyone has done this and had success! Taking specific recommendations please 😄


r/DenverGardener • • 4d ago

Rock edging recommendations?

1 Upvotes

I need to buy some edging for a new 4" deep planting zone in my backyard. It's a very small zone so I probably just need like 5-10 of those big edging bricks/stones. I know they have them at Home Depot but I was wondering if anyone has experience with them for recommendations


r/DenverGardener • • 5d ago

RIP Lawn

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492 Upvotes

The lawn is dead and we've paid our respects. Happy Halloween everyone!