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Description
Iris Hollandica Professor Blaauw, also known as the Dutch Iris, is a beautiful perennial plant that belongs to the Iridaceae family. This particular variety of iris is native to the Netherlands, and it is a popular choice among gardeners and florists for its striking appearance and long-lasting blooms. The flowers of Iris Hollandica Professor Blaauw come in a variety of colors, including blue, purple, white, and yellow, making it a versatile addition to any garden or floral arrangement.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Liliopsida |
| Order | Asparagales |
| Family | Iridaceae |
| Genus | Iris |
Appearance
Iris Hollandica Professor Blaauw typically grows up to 24 inches tall and has long, narrow leaves that are green in color. The flowers of this plant grow on tall stems and have six petals that are arranged in a distinctive fan shape. The petals are usually a deep blue-purple color, and they have a yellow center stripe that is surrounded by white. The flowers of Iris Hollandica Professor Blaauw bloom in late spring and early summer and can be used as cut flowers in bouquets and floral arrangements.
Care Guide
Iris Hollandica Professor Blaauw is a relatively easy plant to care for, but it does require some attention to ensure its long-term health and beauty. Here are some tips for caring for this plant:- Water: Iris Hollandica Professor Blaauw prefers moist soil, but it should not be waterlogged. Water the plant regularly, but make sure the soil has adequate drainage to prevent root rot.- Fertilization: Apply a balanced fertilizer to Iris Hollandica Professor Blaauw in the spring or fall to promote healthy growth and flowering.- Soil: This plant prefers well-draining soil that is rich in organic matter. A pH between 6.0 and 7.5 is ideal.- Sunlight: Iris Hollandica Professor Blaauw thrives in full sun to partial shade. Ensure the plant is getting at least six hours of direct sunlight per day.- Hardiness Zones: This plant is hardy in zones 5-9.
Common Pests & Diseases
Iris Hollandica Professor Blaauw is relatively resistant to pests and diseases, but it can still fall victim to a few common problems. Here are some of the most common pests and diseases that affect this plant:- Iris borer: This pest can bore into the rhizome of the plant, causing significant damage. Look for signs of wilting or yellowing leaves and remove affected parts of the plant.- Leaf spot: This fungal disease can cause brown or black spots on the leaves of the plant. Remove affected leaves and avoid overhead watering to prevent the spread of the disease.- Soft rot: This bacterial disease can cause the rhizome of the plant to rot, leading to stunted growth and wilting. Avoid overwatering and remove affected parts of the plant.
Habitat
Iris Hollandica Professor Blaauw is native to the Netherlands and is commonly found in gardens and landscapes throughout Europe and North America. This plant prefers well-drained soil and can tolerate a wide range of temperatures, making it a versatile choice for many different climates.
Question and Answer
Q: Can Iris Hollandica Professor Blaauw be grown indoors?
A: While Iris Hollandica Professor Blaauw can be grown in containers, it is not typically grown indoors as it requires full sun to partial shade.
Q: How often should I fertilize Iris Hollandica Professor Blaauw?
A: Apply a balanced fertilizer to the plant in the spring or fall, following the manufacturer’s instructions.
Q: Can Iris Hollandica Professor Blaauw be divided?
A: Yes, Iris Hollandica Professor Blaauw can be divided every 3-4 years in the fall after blooming has finished.
Q: Can Iris Hollandica Professor Blaauw be used as a cut flower?
A: Yes, the flowers of Iris Hollandica Professor Blaauw make beautiful cut flowers and can be used in bouquets and floral arrangements.
Related Plants
– Iris Hollandica ‘Apollo’- Iris Hollandica ‘Blue Magic’- Iris Hollandica ‘Bronze Queen’- Iris Hollandica ‘Red Ember’- Iris Hollandica ‘White Van Vliet’
References
– “Iris Hollandica Professor Blaauw.” Missouri Botanical Garden. Accessed September 2, 2021. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=j900.- “Iris Hollandica Professor Blaauw.” Royal Horticultural Society. Accessed September 2, 2021. https://www.rhs.org.uk/Plants/105448/Iris-Hollandica-Professor-Blaauw/Details.
