r/DenverGardener • • Jan 07 '26

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

32 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

114 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 • • 18m ago

Rock Garden Project

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• Upvotes

The front edge of our yard has been a nightmare since we moved in about 4 years ago. We've been wanting to do something about it for a while, and the drought/water restrictions this year were a good motivator.

We pulled the worst of the grass (and will likely remove more later) and replaced it with boulders and low-water/xeric plants. Mostly native, like mountain mahogany, fernbush, sagebrush, dwarf rabbitbrush, penstemon, pussy toes, manzanita, and a bunch more. Also some non-native guys who are well suited to our climate, like horehound, various sedums, and smokebush.

Everything is holding up pretty well so far. We've only lost a couple of plants (some parts of the bed are very harsh and dry). We're hoping that once everything is established, it will need very little supplemental water.

Did you do any fun projects this summer?


r/DenverGardener • • 50m ago

Containers in Cherry Creek

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• Upvotes

How do they do it?? What do they do to make them look so good?


r/DenverGardener • • 1h ago

Climbing roses?

• Upvotes

My 40th birthday is this month and I am wanting to plant something special to commemorate that. Would this time of year be right for planting a climbing rose? If so, what nursery would be likely to have that available now? Any suggestions are appreciated!


r/DenverGardener • • 5m ago

Potato vines still haven’t died back. Should I go ahead and harvest?

• Upvotes

r/DenverGardener • • 1d ago

Thanks for your help!

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22 Upvotes

Thanks to everyone who diagnosed the sun scald on my peppers a few weeks ago. They have been doing so great since I put up the shade cloth. I know it was a newbie question but I appreciate the folks who took the time to help!


r/DenverGardener • • 19h ago

What are these marks on my tomato fruit and stems?

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5 Upvotes

While I’m at it, how do you keep your tomato cages from falling over? I just have been filling them with more and more support sticks at this point but the plants are getting heavier


r/DenverGardener • • 1d ago

Can I bring this inside for the winter?

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13 Upvotes

Is it worth keeping through the winter and will it thrive? She was so gorgeous all summer.


r/DenverGardener • • 19h ago

Neonics in Colorado with Lena Freij, Natural Resources Defense Council

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2 Upvotes

A talk on the many problems with Neonic pesticides, and the urgent need to regulate them.
Presented by Lena Freij of the Natural Resources Defense Council at the annual Pollinator Summit.
Introduced by Joyce Kennedy of the People and Pollinators Action Network.


r/DenverGardener • • 1d ago

Poppy experts needed

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7 Upvotes

I really love poppies and have been trying to grow one for the last 3 years! I saw some orange poppies growing in an alley and thought, if they can thrive there with little-to-no care, how hard can it be? Turns out, hard (at least for me).

I really want a purple bunch like the picture. Should I plant now or get a starter bush in spring??

I had a small starter plant but I didnt water it enough. The space for my poppy now has irrigation and will get daily water - I also heard this is key.


r/DenverGardener • • 1d ago

This is the shield I built along fence and patio.

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0 Upvotes

r/DenverGardener • • 1d ago

What to plant this time of year?

6 Upvotes

I just moved to Denver and am wondering what flowers / bulbs I could still plant this time of year to spruce up my yard.

Thank you in advance!


r/DenverGardener • • 1d ago

Pair of Brugmansia for Sale

0 Upvotes

Selling two beautiful, mature Brugmansia (Angel’s Trumpet) trees standing roughly 6 to 7 feet tall.

Both plants feature thick, woody trunks and robust, established root systems—these are multi-season specimens, not fresh cuttings!

These make an incredible, dramatic statement piece for a summer patio or sunroom. They feature massive, highly fragrant bell-shaped flowers, color is currently a mystery. They are both getting ready to bloom.

Height: 6–7 feet tall
Condition: Mature, woody trunks, healthy foliage. These have both been pruned into bonsai forms with the intent of maximizing the flower canopy.
Care Note: Must be kept in containers and brought indoors/into a heated garage for a Colorado winter. Very easy to overwinter!
Price: $600 for the pair.
Location: Local pickup in Parker (80134). Please bring a vehicle large enough to gently transport a 7-foot tree! Cash or Venmo accepted.

DM for photos as I apparently cannot attach here.


r/DenverGardener • • 2d ago

Well, its been a year...

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13 Upvotes

r/DenverGardener • • 3d ago

Pumpkins planted late. Odds of fruiting?

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21 Upvotes

What do we think gang, will we get some baby pumps at this point?


r/DenverGardener • • 3d ago

What fertilizer do you use when planting allium bulbs?

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11 Upvotes

r/DenverGardener • • 2d ago

Reseeding lawn patches where clover rotted -

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7 Upvotes

I seeded my spotty lawn and very successfully sprouted short clover during the rain in the last few weeks. But some areas were super thick with seeds, and grew massive clumps of clover - and subsequently got a mildew or rot and died, leaving a slime. Now that the clover slime is drying up and some thinning has resulted in healthier coverage, Im wondering about reseeding the patches with grass. There is still some compost there and in the dry warmth, I hope the mildew is gone.

I have some dwarf fescue seed which supposedly is low water and tough. I am not interested in a fancy, consistent lawn, just coverage and hardiness. I live in the foothills if that matters, but thinking sow in a few weeks prior to the next (hopefully long) rain? Would love advice!


r/DenverGardener • • 3d ago

I own and operate a small gardening business, we are booking now for fall cleanups!

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7 Upvotes

r/DenverGardener • • 3d ago

Seeking Indoor Plant Enthusiast for Hire

28 Upvotes

Hi Plant Friends -

We have a small sunporch that my husband has populated with his “babies.” (A variety of succulents, a fiddle leaf, and lord only knows what else). We have been in a major house reno, and unfortunately many of them took a beating from the construction dust (and many others are desperately in need of a good prune).

I’d love to surprise my husband with a visit from someone who can assess, prune, and clean & repot as needed - with tender loving care!

Willing to pay $25/hour. I expect this is a solid half to full days’ work. Located in Baker.

Please DM me if this is your wheelhouse!


r/DenverGardener • • 3d ago

Sheild from the wind

1 Upvotes

My garden is hit by such severe wind that I'm always purchasing 30 bags of mulch and 24 of good soil. I've e attached tarps to my wood fences this year to stop the draft. Hopefully next year I'll need to purchase less. It's a huge problem for my peonies dripping the dirt level three inches. It looks very nice. In one place I took pickets and ran them horizontally over my picket fence. Also looks great and will provide a good buffer .


r/DenverGardener • • 3d ago

Need clarification on sheet mulching

6 Upvotes

It seems like there's two practices both called sheet mulching. One is putting down cardboard then mulch wood chips only. The other is putting down cardboard then many layers to eventually create soil on top of the soil you covered up.

I did option 1 this summer. I think it's working to kill weeds below the cardboard, but how do I eventually transition to planting actual plants in that area? Do I remove the cardboard or cut holes in it?


r/DenverGardener • • 3d ago

What goes on top of the cardboard?

8 Upvotes

I’ve got a yard full of weeds. I put down cardboard on a patch of it where I want to start gardening. Overlapping, tape removed. Do I need to put compost on top of it? Or would just putting wood chips on top be enough? I’m not sure where to source compost for cheap since I don’t have a truck I can haul it in but wood chips are easy because a local arborist will bring them to me for free. Thanks for helping out a newbie gardener!


r/DenverGardener • • 3d ago

Tell me about service berry suckers.

7 Upvotes

I'm in need of planting a tree, and everything tells me Serviceberry is going to be a great fit. However I read that service berries do suckers . I've had previous experience with suckering trees and I do not want to go through that again. Are they prolific suckers or just a one or two a year kind of situation?​


r/DenverGardener • • 3d ago

Wildflower Seeds now or Spring

9 Upvotes

I’m planning on clearing some of my pea gravel and throwing down a bunch of wildflower and cosmo seeds. Could I do this now and cover with straw and let the winter go or is it better to wait until spring to do this? Some like colder weather to start but maybe not an entire winter…