Knowledgebase
Dead plants #756711
Asked June 16, 2021, 10:54 PM EDT
Deschutes County Oregon
Expert Response
Hello Bill,
Thank you for your question about Lamium maculatum (Spotted Deadnettle).
This plant has variegated foliage and colorful blooms throughout the season. Plant in a north or east-facing location. Prefers moist soil, but not soggy. Crown or stem rot can occur in wet soil conditions. Wet conditions may create susceptibility to leaf spot. Remove affected leaves and clean dead leaves from the surrounding area.
Spotted deadnettle, Lamium maculatum – Wisconsin Horticulture
Recommended Cultivars for Central Oregon include ‘Orchid Frost’ and ‘White Nancy’. Dianthus, Garden Carnation, or Pinks Dianthus species False Rock Cress Aubrieta deltoidei.
Source: Water-wise Gardening in Central Oregon | OSU Extension Catalog | Oregon State University
This plant requires the following growing conditions:
- partial shade to full shade
- needs an evenly moist, well-drained, moderately rich soil in partial shade for optimum performance; not tolerant of poorly drained soils, compacted soils, heat, prolonged drought, or sunny spots
Source: Lamium maculatum (osu.edu)
The OSU Deschutes County Extension website provides many helpful publications about gardening in Central Oregon. Following is a link to this website, which will direct you to a variety of gardening topics specific for our geographic area and climate.
Central Oregon Garden Publications | OSU Extension Service (oregonstate.edu)
If you need additional information, you can call the Deschutes County OSU Extension office in Redmond at<personal data hidden>. You can ask to speak with Amy Jo Detweiler or Toni Stephan, members of the Horticulture Staff. Both Amy Jo and Toni welcome your home garden questions.
Thank you. I will try a more shady location.
Bill Boyd
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From: Ask Extension
Sent: Wednesday, June 16, 2021 7:55 PM
To: Bill Boyd
Subject: Thank you for your Ask Extension question (#0026642)
Dear Bill,
Thank you for using Ask Extension. A request for support has been created and a representative will follow-up with you as soon as possible. You can view this question's progress online.
YOUR QUESTION #0026642:
Dead plants
I am trying to grow Lamium maculatum (Spotted Nettle) Not really a nettle They grow well for a time and then the leaves start turning brown from the outside in until the entire leaf is dead. I suspect some type of fungus. I see no evidence of powdery mildew. It spreads rapidly until most of the plant is dead. Last fall when this happened I sprayed with a fungicide and a insecticide, but it did not seem to help. The web sites state it is an easy plant to grow?? They also say White flies and Aphids can be a problem, but I see no evidence, except a few leaves do have small holes in them. Any ideas? Finally, I can't be sure if I am overwatering or underwatering them.
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