With the increasing threat of climate change and habitat destruction, many plant species are at risk of extinction. The Northeast U.S, known for its diverse habitats ranging from coastal areas to mountainous regions, is home to numerous endangered plants. Cultivating these plants can help in their preservation and also add a touch of the unique and exotic to your garden. This article introduces you to some of these species and where you can responsibly source them.

Understanding Endangered Plants

Endangered plants are those that are at risk of extinction in the near future. The primary threats are habitat loss due to urban development, climate change, and invasive species. By growing endangered plants, we contribute to biodiversity, promote a balanced ecosystem, and help in conserving our natural heritage.

Top Endangered Plants for Your Garden

1. Dwarf Sumac (Rhus michauxii)

The Dwarf Sumac is a small, deciduous shrub with lovely, pinnately compound leaves that turn a beautiful orange-red in the fall. The plant is currently threatened due to habitat loss. They prefer well-drained, sandy soil and full sun exposure.

2. Sandplain Gerardia (Agalinis acuta)

The Sandplain Gerardia is an annual herb with beautiful pink flowers that bloom in late summer and fall. Its population has decreased due to urban development and changes in its habitat due to fire suppression. It requires full sun and sandy, well-drained soil.

3. Jesup’s Milk-vetch (Astragalus robbinsii var. jesupii)

Jesup’s Milk-vetch is a perennial herb with small, white flowers. This plant is endemic to the shores of Lake Champlain and is threatened due to shoreline development and recreational activities. It requires gravelly, calcareous soil and full sun.

4. Northeastern Bulrush (Scirpus ancistrochaetus)

The Northeastern Bulrush is a perennial grass that prefers wetlands. It is threatened by changes in its wetland habitat. It needs full sun to part shade and can grow in water up to a foot deep.

5. Small Whorled Pogonia (Isotria medeoloides)

The Small Whorled Pogonia is a perennial orchid with a single, white flower that blooms in late spring. This orchid is threatened due to habitat loss and over-collection. It prefers acidic soil in shady areas.

Where to Obtain These Plants

Sourcing endangered plants must be done responsibly to avoid depleting natural populations further. Here are some sources:

1. Native Plant Nurseries: Several nurseries specialize in growing native and endangered plants. They propagate these plants responsibly without harming wild populations. Examples include Project Native in Massachusetts and New England Wetland Plants in Massachusetts.
2. Plant Rescue Programs: Some organizations, like the New England Wild Flower Society, have plant rescue programs where they rescue plants from construction sites.
3. Seed Exchange Programs: Many botanical gardens and plant societies, like the American Horticultural Society, have seed exchange programs where you can obtain seeds of rare and endangered plants.
4. Local Botanic Gardens and Arboreta: These institutions often have sales of native and rare plants. For example, the New York Botanical Garden and the Brooklyn Botanic Garden have annual plant sales.

Conclusion: Your Role in Conservation

Planting endangered species in your garden is a small but significant step towards biodiversity conservation. You not only contribute to preserving our natural heritage, but you also get to enjoy and appreciate these rare species right in your backyard. Always remember to source your plants responsibly and nurture them with care.