A Comparison: Tropical Milkweed Vs. North Carolina Native Milkweed
Understanding a bit about the unique characteristics and ecological impact of different Milkweed species can help you make an informed decision about which to cultivate in your garden.
1. NATURAL HABITATS: WHERE DO THEY THRIVE?
When buying a plant, knowing where it naturally thrives can give you a better understanding of its care requirements.
a. Tropical Milkweed (Asclepias curassavica):
This plant is a native of warmer regions like Central and South America, and the Caribbean.
b. Common Milkweed (Asclepias syriaca):
This North Carolinian native is a common sight in fields, open woods, and roadsides throughout the eastern and central parts of North America.
2. PHYSICAL ATTRIBUTES: HOW DO THEY LOOK?
Each plant species has its unique physical attributes that make it stand out.
a. Tropical Milkweed:
This species captures attention with its vibrant orange-red and yellow flower clusters, adding a splash of tropical color to any garden.
b. Common Milkweed:
This plant may not be as flamboyant as its tropical counterpart, with its pale pink to purple flowers. However, it compensates with a strong, sweet fragrance that draws in various pollinators.
3. ECOLOGICAL ROLE: HOW DO THEY CONTRIBUTE TO THE ECOSYSTEM?
Understanding the ecological role of a plant helps us comprehend its impact on our local ecosystem.
a. Tropical Milkweed:
This plant plays a significant role as a food source for Monarch butterfly caterpillars. However, when planted outside its natural range (like North Carolina), it can disrupt Monarch migration patterns due to its longer flowering season.
b. Common Milkweed:
This native plant is also a food source for Monarch caterpillars. Its lifecycle is synchronized with the natural Monarch migration, as the plant dies back in fall, prompting Monarchs to continue their journey to Mexico.
In conclusion, while the Tropical Milkweed may seem more visually striking, if you're in North Carolina or similar climates, choosing the native Common Milkweed is an ecologically sound choice. Not only will you be providing a critical food source for Monarch caterpillars, but you will also contribute to maintaining the natural balance of the local ecosystem.
Remember, every plant in our garden is more than just a pretty addition - it's a crucial piece of the larger ecological puzzle. Make your choice count!
Until next time,
The Plant Ecologist