Kelly's Gardening Q & A

Read the Q & A from our ongoing column with Kelly Grummons answering common Colorado gardening questions.

Kelly is co-owner of the mail order nursery businesses, coldhardycactus.com and dogtuffgrass.com.

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Japanese Beetle Destruction

Japanese Beetle Destruction

May 5, 2021

Q: Kelly, do you have any thoughts on dealing with Japanese beetles that are destroying my flower garden? A: After observing Japanese...

Small Onions

Small Onions

Mar 29, 2021

Q: Our family uses a lot of onions in the kitchen. I’ve tried to grow them for a couple of years but was disappointed with the size of...

Can I Plant Potted Bulbs Outside?

Can I Plant Potted Bulbs Outside?

Mar 29, 2021

Q: I got some potted bulbs (crocus, daffodil, tulip, and hyacinth) on clearance after Valentine’s Day that were nearly done flowering....

Power Lines & Harshly Pruned Trees

Power Lines & Harshly Pruned Trees

Mar 1, 2019

Q: There are power lines running along the back of our property. The previous owner planted a variety of trees along the back fence. Some...

Agastache, Rudbeckia, Gaillardia, and Delphinium: Short Lived Perennials

Agastache, Rudbeckia, Gaillardia, and Delphinium: Short Lived Perennials

Jun 1, 2017

Q: Some of my favorite perennials flower all summer. I especially love Agastache, large-flowered Rudbeckia, Gaillardia, and Delphinium....

Easy-to-Grow Pollinator Plants

Easy-to-Grow Pollinator Plants

May 5, 2021

Q: What are some easy-to-grow plants that benefit pollinators in spring, summer, and fall? I’m not much of a gardener but I would like...

Cactus & Agave Frost Damage

Cactus & Agave Frost Damage

Mar 29, 2021

Q: Some of our cactuses and Agaves got a lot of damage in that October deep freeze. We’ve had them for years and this is the first time...

Cactuses not Blooming

Cactuses not Blooming

Mar 1, 2020

Q: Over the last few years, I’ve collected a number of cacti and succulents. When I look them up online, it shows that they have gorgeous...

Dividing Mother's Peonies

Dividing Mother's Peonies

Aug 4, 2017

Q: Our mother passed away recently and I’d like to divide her old peonies to move to my and my siblings’ gardens. Can we divide them in...

Do Aphids Overwinter?

Do Aphids Overwinter?

Apr 9, 2021

Q: I grow kale in a raised bed. Last year it got covered (smothered) in aphids. After using Neem oil spray on it for a month, I decided...

Spotty Buffalo Grass

Spotty Buffalo Grass

Mar 29, 2021

Q: I have ‘Legacy’ Buffalo Grass in the front yard and parkway. It has been there for 8-10 years. Over the last two years it has gotten...

Is there an advantage to using grafted tomato plants over seed grown plants?

Is there an advantage to using grafted tomato plants over seed grown plants?

Mar 1, 2020

Q: For the last few years, I see grafted tomatoes in many of the catalogs when I’m ordering vegetable seeds. They seem expensive. Is...

What veggies can I plant in late summer and fall?

What veggies can I plant in late summer and fall?

Jul 1, 2017

Q: What vegetables can I plant in late summer and fall for a nice late fall, winter or early spring harvest? A: The vegetables that we...