Geranium palmatum and Geranium maderense are two sister species that have distinct differences in terms of their appearance and characteristics. As a gardening and landscaping expert, I have had experience with both of these plants and can provide a detailed comparison.
1. Appearance:
– Geranium maderense is considered the more glamorous and desirable of the two species. Its single flowers are fuller, more robust, and have a brighter pink color compared to G. palmatum.
– G. maderense produces flowers in far greater profusion, creating a stunning display of pink blooms.
– On the other hand, G. palmatum has a more delicate and airy appearance. Its flowers are smaller and paler in color, typically ranging from pink to pale lavender.
2. Growth Habit:
– Geranium maderense is a biennial plant, meaning it completes its life cycle over two years. In the first year, it produces a basal rosette of large, deeply-cut leaves. In the second year, it sends up tall flower stalks from the center of the rosette.
– G. palmatum, on the other hand, is a perennial plant that forms a clump of semi-evergreen foliage. It does not have a distinct rosette like G. maderense but rather grows in a more spreading habit.
3. Hardiness:
– Both species are native to the Canary Islands and are not fully hardy in colder climates. However, G. palmatum is generally more cold-tolerant than G. maderense.
– G. palmatum can withstand light frost and may survive in sheltered locations with winter protection. G. maderense, on the other hand, is more sensitive to cold temperatures and may require additional winter care in cooler regions.
4. Cultural Requirements:
– Both species prefer well-drained soil and full sun to partial shade. However, G. maderense tends to thrive in slightly moister conditions compared to G. palmatum.
– G. maderense appreciates regular watering and benefits from mulching to retain moisture in the soil. It also benefits from the addition of organic matter to the planting hole.
– G. palmatum is more drought-tolerant once established and can withstand periods of dryness better than G. maderense.
In my experience, I have found that Geranium maderense is a showstopper in the garden with its abundant, vibrant flowers. It adds a touch of glamour and creates a focal point wherever it is planted. On the other hand, Geranium palmatum has a more delicate and subtle beauty, and its spreading habit makes it suitable for use as ground cover or in rock gardens.
The choice between these two sister species depends on the desired aesthetic and the specific growing conditions in your garden. Both can be wonderful additions, but Geranium maderense tends to steal the show with its profusion of bright pink blooms.
