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PlantSnap
Plant Care
Giant arrowhead
(Sagittaria montevidensis)
Also Known As
Giant arrowhead, Arrowhead, Water plantain, Montevideo arrowhead
About This Plant
Sagittaria montevidensis is an aquatic plant species that is native to South America. It has long, arrow-shaped leaves and produces small white flowers on long stems. The plant is commonly known as the giant arrowhead or Montevidensis arrowhead.
Plant Care Instructions
Outdoor Size Range
Height: 1-3 feet (30-91 cm), Spread: 1-2 feet (30-61 cm)
Light Requirements
Sagittaria montevidensis prefers full sun to partial shade. It can tolerate shade but may not flower as well.
Humidity Needs
Sagittaria montevidensis prefers high humidity levels, but can tolerate lower humidity levels as well.
Fertilizing Schedule
Fertilize Sagittaria montevidensis with a balanced fertilizer every 4-6 weeks during the growing season. Do not fertilize during the winter months.
Pruning Guidelines
Pruning is not necessary for Sagittaria montevidensis, but it can help to maintain a more compact shape.
Common Pests and Diseases
Common pests for Sagittaria montevidensis include aphids, spider mites, and whiteflies. It can also be susceptible to fungal diseases in overly wet conditions.
Indoor Size Range
N/A
Watering Schedule
This plant species requires consistently moist soil and can even grow in shallow water. It is important to not let the soil or water dry out completely.
Temperature Range
This plant species can tolerate a wide range of temperatures, but prefers warmer temperatures between 65-85°F (18-29°C).
Growing Season
The growing season for Sagittaria montevidensis is from spring to fall.
Growing Difficulty Level
Sagittaria montevidensis is relatively easy to grow as long as its basic needs are met.
USDA Hardiness Zones
Sagittaria montevidensis can be grown in USDA hardiness zones 8-11.
Did You Know?
Sagittaria montevidensis is commonly used in aquariums and water gardens due to its attractive appearance and ease of care.
