eXtension

Colorado

Experts (178)

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Groups (7)

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Greenhouse & Nursery Production FAQ

1 Member

Accepts questions from anywhere.

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Colorado Greenhouse & Nursery

0 Member

Accepts questions from anywhere.

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CO-State

1 Member

Accepts questions from anywhere.

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Swift

1 Member

Accepts questions from anywhere.

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CO - GPA

2 Members

Accepts questions from anywhere.

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El Paso County Colorado Master Gardeners

6 Members

Questions must match this group's locations

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Colorado Extension

5 Members

Accepts questions from anywhere.

Questions (18,070)

Plum tree leaking sap

Is there anything I can do for my plum tree leaking sap? I live in Denver Colorado.

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Arapahoe County CO 24 days ago

Will killing lawn w/glyphosate also kill cottonwood?

I'm in Broomfield, CO, and am planning to kill grass and weeds (it's mostly weeds if I'm honest) in my lawn with glyphosate to plant a more waterwise grass. (Dog Tuff grass--would appreciate any reader experience with this too.)
I have a huge cottonwood (Plains cottonwood, I think) in the lawn and wonder if the glyphosate will damage the shallow root system and kill the tree. The tree has likely already been stressed by landscaping done this fall.
Thanks for your insight!!!

Broomfield County CO about 1 month ago

Maple with yellow leaves all summer

Hi,
I have a maple tree in my yard that has had yellow leaves all summer. Actually, the veins are green and the rest of the leaf is yellow. A branch or two on one side are pretty much normal, all green. Other trees in the neighborhood have the same problem. We planted our tree about 10 years ago and it has been this way for maybe the last three years. Does it need some kind of fertilizer? Or??

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Larimer County CO 3 months ago

Water testing

Curious what test need to run to evaluate our water for the garden. The water is from a well and run through a series of filters. We noticed a white residue on the soil. This is a first summer/ year garden and soil is not immaculate. We are amending with compost. The direct question is what water test and where to send it? Thanks, Stuart

Montrose County CO 4 months ago

Pruning peach trees

Hello!
I have a ten-year-old Saturn peach tree and a four-year-old regular (large) peach tree. I'm wondering if you can point me in the direction of some good videos/resources to determine how and when to prune these trees.
Thank you.
Barbara Hegarty

Pueblo County CO 4 months ago

correct low calcium in soil

Last spring I had a soil test performed through the extension service which indicated low lime and high PH (7.9). I have had problems with blossom end rot in tomatoes and similar problems with bell peppers this gardening season. After doing a little research I see that lime is recommended to correct these types of problems but then found some information about lime raising the soil PH. Would gypsum be better?

Joan Fontaine



Pueblo County CO 4 months ago

Grass & Rabbits

Rabbits have eaten my Kentucky bluegrass down to bare dirt. Is there a grass rabbits will not eat?

Boulder County CO 4 months ago

Japanese Beetle contril

We discovered dusting with diatomaceous earth controls Japanese Beetles. They are gone in a day.

Denver County CO 5 months ago

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