Longwood Gardens

award winning innovative nursery greenhouse and headhouse

Kennett Square, PA | 80,948 SF

Set within Longwood’s existing nursery property on Route 1, the new nursery production greenhouse consists of a 15,600-square-foot headhouse and 65,348-square-foot greenhouse. HSA managed the overall site plan, designed the headhouse, and consulted with Bancroft and Deforche Construct on the greenhouse floor plan.

The existing production greenhouses were well over 20 years old and did not allow for flexibility or for diversity in growing new plants. The new facility is designed and built to improve the quality and volume of crop production, introduce more sustainable technologies, and elevate the work environment for our staff.

The headhouse portion of the new facility includes staff offices, as well as potting and transplanting areas complete with a mechanical gantry-crane system and conveyors for moving potting media. The headhouse also features receiving and delivery spaces with a drive-through lane to allow for protected, indoor plant loading and unloading during the winter months. The greenhouse’s very unique structural design combines “venlo” and “cabrio” roof designs to separate growing zones, allowing unprecedented flexibility to accommodate a variety of plant materials, growing methods, and environments with less resource input.

MERIT |

ABC Delaware Excellence in Construction Awards 2021 | GC/CM $20-30M

“Growth By Design”, Chimes by Longwood