Podcast: Let's Argue About Plants

Episode 181: Plants You Can’t Kill

It’s worth finding a few stalwarts that will survive almost anything

When plants are done in by pests, diseases, or bad weather, it is hard not to take it personally. But on the positive side, each plant that shuffles off this mortal coil does offer an opportunity to add something newer and better to our garden. In this episode, Danielle, Carol, and expert guest Kielian DeWitt talk about some of the most reliable cultivars that have stood the test of time under tough conditions. Perhaps one of these choices will be just right for filling a gap that has recently opened up in your garden.

Expert: Kielian DeWitt lives and gardens in Montana’s Bitterroot Valley. Check out an article about her garden here: Garden Design that Doesn’t Limit Your Color Palette 

 


Danielle’s Picks: Plants You Cant Kill

  • Sweet fern (Comptonia peregrina, Zones 2-6)
  • ‘Biokovo’ hardy geranium (Geranium x cantabrigiense ‘Biokovo’, Zones 5-8)
  • Crimson Fans® mukdenia (Mukdenia rossii ‘Karasuba’, Zones 4-8)
  • ‘Limelight’ panicle hydrangea (Hydrangea paniculata ‘Limelight’, Zones 3-9)
Sweetfern
Sweetfern
Biokovo geranium
Biokovo geranium
Crimson Fans mukdenia
Crimson Fans mukdenia
Limelight hydrangea
‘Limelight’ panicle hydrangea

Carol’s Picks: Plants You Cant Kill

  • Swamp milkweed (Asclepias incarnata, Zones 3-9)
  • Black Lace® elderberry (Sambucus nigra ‘Eva’, Zones 4-7)
  • American cranberrybush viburnum (Viburnum trilobum, Zones 2-7)
  • ‘Shenandoah’ switchgrass (Panicum virgatum ‘Shenandoah’, Zones 5-9)
Swamp milkweed
Swamp milkweed
Sambucus Black Lace
Sambucus Black Lace
American cranberrybush viburnum
American cranberrybush viburnum
‘Shenandoah’ switchgrass
‘Shenandoah’ switchgrass

Expert Guest Kielian DeWitt’s Picks: Plants You Can’t Kill

  • ‘Sweet Emotion’ abelia (Abelia mosanensis, Zones 4-8)
  • Golden oregano (Origanum vulgare ‘Aureum’,  Zones 4-9)
  • Purple foxglove (Digitalis purpurea, Zones 4-9)
  • Culver’s root (Veronicastrum virginicum, Zones 3-8)
  • ‘Pink Lemonade’ baptisia (Baptisia ‘Pink Lemonade’, Zones 4-9)
‘Sweet Emotion’ abelia, photo courtesy of Kielian DeWitt
‘Sweet Emotion’ abelia, photo courtesy of Kielian DeWitt
Golden oregano, photo courtesy of Kielian DeWitt
Golden oregano, photo courtesy of Kielian DeWitt
Purple foxglove, photo courtesy of Kielian DeWitt
Purple foxglove, photo courtesy of Kielian DeWitt
Culver’s root, photo courtesy of Kielian DeWitt
Culver’s root, photo courtesy of Kielian DeWitt
Pink Lemonade baptisia, photo courtesy of Kielian DeWitt
Pink Lemonade baptisia, photo courtesy of Kielian DeWitt
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Comments

  1. kathybos 05/25/2025

    I agree with the hosts regarding several of these plants. I have Black Lace elderberries that are 6’ tall. They are on the NE side of my house and are in shade by noon in the middle of summer. I work at a garden center and I love recommending both Black Lace and Lemony Lace to folks who want a Japanese maple but either don’t want to pay $$$ or who may have a deer problem that would destroy a Japanese maple.

    I also have Shenandoah switchgrass that looks amazing all year long. Both of these plants grow very quickly and in the case of the switchgrass, it gets zero supplemental water. I live in zone 7A and the summers can be hot and dry but these plants take the heat in summer and survive freezing and snow in winter.

  2. AnnaRCunningham 05/26/2025

    Their colorful flowers and attractive bark provide year-round interest.
    blocky blast

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