Native Plants

Q. Who is Mr. Smarty Plants?
A: There are those who suspect Wildflower Center volunteers Nan Hampton, Jimmy Mills and Barbara Medford to be the culpable and capable parties. Yet, others think staff members Damon Waitt, Joe Marcus and Philip Hawkins might play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.
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Ask Mr. Smarty Plants
Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Questions From Near You
Chester Springs, PA
Evergreen vine or plant that is non-toxic for horses in Pennsylvania
I am looking for an evergreen vine or plant that can grow in shade and is not toxic to horses. I live 30 miles west of Philadephia. Can you help me? I would like to camouflage a wire horse fence. It ...
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Phoenixville, PA
Edibility of native and non-native wild onions
I'd like to know if the seeds of the wild onions found in southeastern Pennsylvania (possibly called Allium ascalonicum) are edible at all- these are the seeds that
grow on top of the stalk, after ...
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Mont Clare, PA
Plant Identification
Hi, I live in ne pa.i have always had a fasvorite wild flower with yellow flowers in the spring. the plant lasts all summer and fall til first frost. It gets small thin bean like seed pods that I save...
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Mont Clare, PA
Rules for picking wildflowers
I've always heard that, if not in a park or posted area, it is ok to pick one wildflower for every 13 and therefore leave a dozen. Is this at all true?
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Royersford, PA
Thinning out of maple tree following heavy winds
A 15 yr old red maple lost significant fruit in spring from heavy winds, in summer the tree seems thinned out. Is this the reason? Tree is otherwise very healthy and has always had thick foliage in ...
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Downingtown, PA
Low Ground Cover for Steep, Shaded PA Site
I am located in Downingtown, PA, right on the border between Zone 6 and 7. Please provide a recommendation of a native ground cover for the following conditions: steep slope (greater than 45%), full s...
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Downingtown, PA
Shade plants to replace a lawn in PA
Our neighborhood is built into a hill and our backyard is along the slope. We cannot keep grass in the area (except for a few clumps). The area is mostly shaded and moist-dry however when rain comes t...
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Downingtown, PA
Identification of plant with speckled green leaf
I have a purple (or brown) speckled green leaf plant with tiny yellow daisy-like flowers. The leaf is fuzzy looking on the edge. Self seeds freely in my shady garden.
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Valley Forge, PA
Planting ironweed in Valley Forge
I work in a national park and we have one population of Vernonia glauca (tawny ironweed), a state-listed endangered species in Pennsylvania. Last year we collected seed and have been successful in gro...
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West Chester, PA
Ground cover for a dry slope in PA
My side yard is a slope with rocky (a lot of small serpentine rocks) soil under white and black pine trees. I can grow lots of weeds :-) but would like to plant a low (0-3in) evergreen ground cover th...
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West Chester, PA
Ground cover under Spruces from West Chester PA
Trying to get a native groundcover (or any grass/wildflower/fern) planting established under a small stand of spruces. Established stand (30+ years old), so lots of needles on ground. Just about tot...
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West Chester, PA
Need grasses to stabilize a moderately steep slope in Pennsylvania
Hello. We have a moderately steep slope in a shady area that is in need of some help. The grass that is in place there seems to be thriving - nice and green, with good growth. However, kids running...
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Devon, PA
Is Asclepias incarnata poisonous to dogs?
Is Asclepias incarnata safe in a farm/yard with plenty of dogs running around? What happens if a dog eats the leaves or seeds or pods? Is eating any of these fatal to dogs?
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Pottstown, PA
Water-loving native plants for Pottstown, PA
I live about 40 miles west of Philadelphia. I am looking for a water absorbing evergreen tree/bush/plant that I could plant in the rear of my yard. We get a small stream every good rain and the back...
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Collegeville, PA
Non-native invasive chickweed in Collegeville PA
My problem is chickweed. I have found considerable information on how to eliminate the chickweed. My question is after following a suggested elimination process: How and when do I reseed with grass?...
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Collegeville, PA
Location of Taxus baccata
Where in the USA may I purchase taxus baccata? I can't find them anywhere on the internet or at local nurseries. I need about 125! So, saplings would be preferred even though they are slow growing...
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Collegeville, PA
Understory Shrubs for Pennsylvania Clay
I want to replace three non-native Euonymus alatus with native shrubs that will serve as host plants for butterfly/moth species and/or attract bumblebees and other native bees. The shrubs I have are ...
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king of prussia, PA
Bignonia capreolata with brown leaves in Pennsylvania
3 year old crossvine leaves brown and dead looking. Will it come back and bud out? Crossvine on fence southern exposure. Crossvine on fence in another area has leaves and are dark green/purple - sa...
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Wayne, PA
Resources for a green roof project from Wayne PA
Hello! I am researching a project to create a native wildflower/ turf mix for a green roof. I would ideally like to grow it as a sod mat, and then install it in rolls. I am currently working as an i...
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Radnor, PA
Low maintenance, native plants for sloping drive near Philadelphia
My cabin is located in the northwest suburbs of Philadelphia. I am looking for low maintenance plants that would look good on the sides of a driveway that slopes upward. This is a potential project fo...
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Newtown Square, PA
Safe Concrete Planters For Plants?
We are building low concrete walls around a patio (in Washington, DC). Can we create the walls to act as planters or will the lime leaching make the soil too inhospitable for most plants?
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