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Questions From Near You

Washington, DC
Replacing Nandina with natives for a schoolyard in Washington DC
Dear Mr. Smarty Plants, Our schoolyard now has some invasive plants in the landscaping that we would like to replace with native plants. We have four clumps of Nandina planted at each pillar along a...
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Washington, DC
Transplant shock in Liatris spicata
I bought a liatris spicata start a month ago, and transplanted it into my front yard (full sun, clay soil, moist due to all the rain recently). The plant immediately wilted so I transplanted it in ...
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Washington, DC
Native alternative for liriope
I am looking for native alternatives to liriope for use in sun to part shade, moderate moisture planting beds. Would prefer evergreen options.
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Washington, DC
Broad leaved evergreens for DC
We are looking for a flowering evergreen shrub, native to the mid-Atlantic, that grows in part shade but will tolerate full sun. We have been researching rhododendrons and azaleas but are concerned a...
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Washington, DC
Source for Carex blanda in Washington DC
Dear Mr. Smarty Plants, After reading your recommendations, Carex blanda seems to be a suitable evergreen native plant for a small pond island planter I am making for our small backyard turtle pond....
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Washington, DC
What is pulling Indian Grass out of a park in Washington DC?
We are renovating a park in Washington, DC on the waterfront. We have planted Sorghastrum Nutans (Indian Grass). During the evening/overnight something is pulling the plants from the ground. It is onl...
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Washington, DC
Smarty Plants on invasive and exotic plant species
Where can I go to learn more about invasive and exotic plant species?
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Washington, DC
Smarty Plants on Invasive Plants
How bad are invasive species?
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Washington, DC
Smarty Plants Exotic Species
What is an Exotic Species?
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Washington, DC
Rain garden plants for DC
Please recommend deep-rooted, native, perennial plants, 1-3 feet high, for an area that is moist and gets approximately 3 hours of day of afternoon sun. During rain storms this garden is in a low area...
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Washington, DC
Self-watering planters
I'm a big proponent of the EarthBox (tm) phenomenon - that is, so-called "self-watering" or sub-irrigation planters where a separate but connected reservoir underneath the soil in the planter is fi...
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Washington, DC
Smarty Plants Exotic Species
What Makes an Exotic Species Invasive? (When is a Guest a Pest?)
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Washington, DC
Smarty Plants on Invasive Plants
How many plants are invasive?
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Washington, DC
Ground cover for steep slope in Washington DC
We have a steep slope in our garden in Washington DC which has sun from noon to sun set. Could you please recommend some low maintenance plants which would be a good ground cover and limit erosion?
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Washington, DC
Shrubs for a screen in DC
Live in Washington DC vicinity (zones: 7-8). Looking for hardy shrubs to screen a 47 foot long picket fence and provide barrier to neighbor. It is western exposure with sun light. Ideally evergreen, d...
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Washington, DC
Small Yard Tree for Washington DC
What do you suggest for a tree or shrub in my front yard? The yard is small; 9 ft x 12 ft. Thank you.
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Washington, DC
Butterfly plants for Washington DC area
Dear Mr. Smarty Plants, I am a teacher working with very young students to establish a wildlife garden. We received a donated butterfly bush of a smallish cultivar, but wondering if there is a native...
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Washington, DC
plants for a green roof
Dear Mr. Smarty Plants, We have a small, homemade green roof with a 4" medium on our sunroom, which faces south, however, a portion is partially shaded a Sweet Gum tree. Native Iris cristata, phlox...
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Washington, DC
Something eating Monarda didyma in Washington DC
Please Help, I have a couple of Bee Balm, Jacob Cline, plants, whose leave are being eaten, by what I do not know. None of the nurseries around here seem to have ever heard of this happening to this p...
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Washington, DC
Native plants for pots for wedding in November
Will any of the plants that are in your big plant sale be flowering in November? I am looking for plants that would do well in pots because I'd like to use them as center pieces at a wedding (in Aus...
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Washington, DC
Flower sucession for Washington DC
Interplanting to cover up spring ephemerals. When bulbs/spring ephemerals (camassia, bluebells, etc.) are dying back, their wilting leaves don't look so great. What can I plant to minimize the me...
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