Acanthus mollis and Acanthus spinosus are two species of plants that are closely related and share many similarities. However, there are a few key differences between the two, particularly in their leaves and flowers.
1. Leaves:
One of the main differences between Acanthus mollis and Acanthus spinosus lies in their leaves. Acanthus mollis has broader and softer leaves compared to Acanthus spinosus. The leaves of Acanthus mollis have a more rounded shape and are often deeply lobed, giving them a more lush and full appearance. On the other hand, Acanthus spinosus has leaves that are less broad and tend to be less soft to the touch.
2. Flower spikes:
While both species produce flower spikes, there is a slight difference in the abundance of these spikes. Acanthus spinosus tends to produce more flower spikes compared to Acanthus mollis. This gives Acanthus spinosus a more vibrant and showy appearance when in bloom. However, it’s worth noting that both species produce attractive flowers that are similar in shape and color.
3. Growth habit:
In terms of growth habit, Acanthus mollis and Acanthus spinosus are quite similar. Both species are herbaceous perennials that form clumps of foliage. They both have a spreading habit and can reach heights of around 2-3 feet. However, Acanthus spinosus has a slightly more upright growth habit compared to the more sprawling growth of Acanthus mollis.
4. Hardiness:
Both Acanthus mollis and Acanthus spinosus are hardy plants that can tolerate a wide range of conditions. However, Acanthus spinosus is generally considered to be more cold-hardy than Acanthus mollis. This means that Acanthus spinosus is better suited to colder climates and can withstand freezing temperatures more effectively.
The main differences between Acanthus mollis and Acanthus spinosus lie in their leaves and flower spikes. Acanthus mollis has broader and softer leaves, while Acanthus spinosus has narrower and less soft leaves. Acanthus spinosus also tends to produce more flower spikes, giving it a more vibrant appearance when in bloom. However, both species are attractive and hardy plants that can be a stunning addition to any garden or landscape.