Horticulture Frequently Asked Questions

How do I deal with these Japanese Beetles?

  • Japanese Beetles - Click here for more information and how to manage these invasive pests

Have they found Emerald Ash Borer in my area yet?

  • Emerald Ash Borer - Click here for more information on where EAB is and how to manage this invasive insect

When can I apply crabgrass control in the spring?

  • Soil Temperatures - In the spring, check that your soil temperature is at least at 55-60 degrees F before applying crabgrass Pre-emergence Herbicides

Why are so many shrubs brown this year?

  • In February of 2021, Nebraska had temperatures reach -30 degrees F for multiple days in a row. This did a lot of damage to our plants. Just prune out the brown, dead areas and hope for improvements.

When can I cut back Iris & Peony plants for the year?

  • They will turn brown in the late fall. Wait until they turn brown before pruning them back to allow time for the plants to build and store their nutrients through the year.

In the late summer/early fall, why are the tips of my trees, especially oaks, turning brown and falling off the tree?

When is the first frost in the fall for my area?

When is the last frost in the spring for my area?