Ask a Question forum: plants under pecan tree?

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Name: Betsy
Texas (Zone 9a)
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piksihk
Feb 4, 2017 5:35 PM CST
We moved into a new home with large pecan tree planted in front of the house which faces north.
Several plants were/are planted under the tree: foxtail ferns, 4 minature azalea, edged with liriope. There was a large euryops daisy which died in the summer. I planted a red shrimp plant, coreopsis, and some various plants I had extras from my previous house.

We had a two day freeze so some of the plants may not survive. Should I even bother to replace the plants? Or are there plants that will do well under trees?





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Name: Daisy I
Reno, Nv (Zone 6b)
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DaisyI
Feb 4, 2017 7:25 PM CST
You may have two problems. Planting in a shady area and planting under a pecan tree.

Pecans produce a chemical called Juglone which inhibits the growth of some plants. Luckily, pecans produce a lot less Juglone than walnut trees do.

The shade is probably the bigger problem. The plants need to be happy in the shade - the euryops and coreopsis are out. But the azalea and ferns are doing well. Why not a few more? You could also plant Helleborus, Astilbe and Heuchera, pansies and violets. All are Juglone resistant and shade lovers. I'm sure others will have more suggestions.

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Name: Betsy
Texas (Zone 9a)
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piksihk
Feb 4, 2017 8:03 PM CST
I did read up on pecan and juglone. The plants do get part shade and sun. I just needed the names of plants that can handle the juglone; thanks, Daisy.
While the earth remains, Seed time and harvest, Cold and heat, Winter and summer, And day and night Shall not cease. Gen. 8:22
Name: Rick R.
near Minneapolis, MN, USA zon
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Leftwood
Feb 4, 2017 9:19 PM CST
Azaleas are in the group of plants sensitive to juglone. If they are growing there, you shouldn't have to worry. Notwithstanding the juglone, nut trees are good trees to grow plants under. Their root systems are coarser and relatively deep. You won't find that impenetrable mass of tree roots at the surface, like you would with a maple or euonymus, for instance. But you will still want to keep those lowest branches trimmed well above your head.
Name: Amanda
KC metro area, Missouri (Zone 6a)
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pepper23
Feb 4, 2017 9:25 PM CST
Hosta would work great under there too.

Sherrysplace68
Jun 26, 2018 7:55 AM CST
DaisyI said:You may have two problems. Planting in a shady area and planting under a pecan tree.

Pecans produce a chemical called Juglone which inhibits the growth of some plants. Luckily, pecans produce a lot less Juglone than walnut trees do.

The shade is probably the bigger problem. The plants need to be happy in the shade - the euryops and coreopsis are out. But the azalea and ferns are doing well. Why not a few more? You could also plant Helleborus, Astilbe and Heuchera, pansies and violets. All are Juglone resistant and shade lovers. I'm sure others will have more suggestions.


Can I plant blue plumbago under pecan trees? Thanks in advance
Name: greene
Savannah, GA (Sunset 28) (Zone 8b)
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greene
Jun 26, 2018 8:08 AM CST
@Sherrysplace68, This thread is over a year old. You may get more responses if you post your question in the 'Ask A Question' forum. Thumbs up
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Name: Kyle
Middle TN (Zone 7a)
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quercusnut
Jun 26, 2018 10:25 PM CST
Sherry, are you asking about Ceratostigma plumbaginoides or Plumbago auriculata? You didn't give your location. One is hardy, the other tropical. Either one should do ok I think given good soil.

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