Autumn: 2026
🌱 Natural Farming
I hope you are all doing well. In our previous post, we tracked the progress of the germinating rice cultivars and the growth of the alfalfa plants. Today’s post is dedicated to a vibrant native species: Cassia corymbosa, commonly known as Argentine Senna or Sen del campo.
This shrub is highly significant in garden design for its ornamental beauty and, more importantly, its ecological role. It is a key plant for attracting wildlife, serving as a host plant for the Limoncito butterfly and providing nectar for bumblebees and other essential pollinators.
As a legume, it produces pods containing seeds. The best time to harvest them is once the pod has dried completely on the branch; you will see them turn from green to a dark brown or blackish hue. Please note that it is not edible. If you wish to propagate it, you can collect these dry seeds to grow a new specimen in the spring.
However, I have a word of caution regarding its use in public urban spaces. I do not recommend planting it as a street tree. It is a short-lived species (usually 3 to 6 years), its branches tend to become tangled and messy over time, and it spreads very easily. The seeds germinate almost anywhere they land, which can lead to maintenance headaches.
