Helianthus decapetalus, commonly known as the thinleaf sunflower, is a common native plant in Eastern US. It belongs to the same genus as the garden variety sunflower (Helianathus), unlike the common sunflower, these plants are perennials. The commonly grown sunflower is an annual plant, gardeners have avoided growing perennial varieties of sunflowers because of their propensity to spread and become “invasive” rapidly.
The plant serves as a host and a food source for a diverse array of native bugs. The seeds produced are food for birds, and so are the insects that are attracted to the plant.
I would highly recommend the thinleaf sunflower to any new gardener. They bloom in late summer – early fall in a beautiful display lasts for a few weeks, with fresh flowers blooming every few days.
An advantage of growing native species, of course, is the insects that visit your garden. Photographed here is what I believe to be a Green sweat bee, covered in pollen, hopping from one flower to the next. Slide through these two slideshows to see a bee fly away.
If there is one thing you can be sure of, as you learn more about plants and how to identify them, the clearer the destruction of native wildlands gets. Soon the beautiful flowers you see in a wild reserve turn up to be aggressive invasive species brought to the continent by people wanting a more European garden.
Today I want to show two species of Irises that can be found in New Jersey, North-Eastern America, Iris pseudacorus (Yellow-Flag Iris), and Iris versicolor (blue flag Iris).
Both species look similar, but, in my personal opinion, the native Iris looks far better than its European cousin. But, as the yellow-flag were quite popular in Europe they were imported for their ornamental value.
Both species like wet conditions to grow in and are found growing near ponds or swamps. Yellow Flag Iris takes over aquatic habitat and out-competes native plants by forming thick clumps that are hard to remove.
Adding native plants to your garden has a lot of advantages. Besides making your yard look beautiful, they attract and provide shelter to native insects and help restore the land to its original splendor! You can find links to native gardening websites here.