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Plant Science and Conservation

• Plant Evaluation
• Comparative Trials
   Program
• Top-rated Plants
• Plant Evaluation Notes

Ornamental Plant Development

Plant Evaluation — Comparative Trials Program

The following plants are currently under evaluation at the Garden:

• Agastache (hyssop)
• Aster (aster)
• Astrantia (masterwort)
• Athyrium (lady fern)
• Cimicifuga (bugbane)
• Clematis (clematis)
• Dryopteris (wood fern)
• Echinacia (coneflower)
• Eupatorium (Joe-Pye weed)
• Geum (avens)
• Helenium (sneezeweed)
• Helianthus (sunflower)
• Heliopsis (heliopsis)
• Hydrangea quercifolia (oak leaf hydrangea)
• Hydrangea paniculata (panicle hydrangea)
• Ligularia (ligularia)
• Miscanthus (miscanthus)
• Phlox (garden phlox)
• Physostegia (obedient plant)
• Polygonum (smartweed)
• Polygonatum (Solomon's seal)
• Potentilla (cinqefoil)
• Rodgersia (rodgersia)
• Rosa (shrub rose)
• Sambucus (elderberry)
• Sedum (stonecrop)
• Silphium (rosin weed)
• Stokesia (Stokes' aster)
• Transcantia (spiderwort)
• Veronica (ironweed)