Nymphaea

Description

Nymphaea, commonly known as water lilies, are aquatic plants that grow in still or slow-moving freshwater. They are known for their beautiful flowers and lily pads that float on the water’s surface. The flowers come in a variety of colors, including white, pink, yellow, and red, and are often fragrant. Nymphaea plants are popular in water gardens and are easy to care for.

Taxonomic Information

Appearance

Nymphaea plants have large, glossy leaves that float on the water’s surface. The leaves can be circular or heart-shaped and can range in size from a few inches to several feet across. The flowers are also large and showy, with many petals surrounding a central stamen. The flowers can float on the water’s surface or rise above it on a stem. Nymphaea flowers bloom during the summer months and can last for several days.

Care Guide

Nymphaea plants are easy to care for and can thrive in a variety of conditions. Here are some tips for caring for your water lily:

Water:

Nymphaea plants thrive in still or slow-moving freshwater. The water should be at least 6 inches deep and should be changed every 2-3 weeks. If you have fish in your water garden, be sure to monitor the water quality and make adjustments as needed.

Fertilization:

Nymphaea plants benefit from regular fertilization during the growing season. Use a slow-release fertilizer that is specifically formulated for aquatic plants. Be sure to follow the instructions on the package for best results.

Soil:

Nymphaea plants should be planted in a heavy clay soil that is specifically designed for aquatic plants. The soil should be at least 6 inches deep and should be covered with a layer of gravel to help anchor the plant in place.

Sunlight:

Nymphaea plants need at least 6 hours of direct sunlight each day to thrive. Be sure to plant your water lily in a location that receives plenty of sun.

Hardiness Zones:

Nymphaea plants are hardy in USDA zones 3-11. Be sure to choose a variety that is appropriate for your climate.

Common Pests & Diseases

Nymphaea plants are generally resistant to pests and diseases, but they can occasionally be affected by the following:

Aphids:

Aphids are small insects that can suck the sap from the leaves and stems of Nymphaea plants. They can be controlled with insecticidal soap or neem oil.

Leaf Spot:

Leaf spot is a fungal disease that can cause brown spots on the leaves of Nymphaea plants. It can be treated with a fungicide.

Habitat

Nymphaea plants are native to temperate and tropical regions around the world. They grow in still or slow-moving freshwater, including ponds, lakes, and rivers. Nymphaea plants are also popular in water gardens and can be grown in containers or in natural water features.

Question and Answer

Q: How deep should I plant my Nymphaea?

A: Nymphaea plants should be planted in at least 6 inches of water.

Q: Can Nymphaea plants survive in saltwater?

A: No, Nymphaea plants need freshwater to survive.

Q: How often should I fertilize my Nymphaea?

A: Nymphaea plants benefit from regular fertilization during the growing season. Follow the instructions on the package for best results.

Q: How long do Nymphaea flowers last?

A: Nymphaea flowers can last for several days.

Related Plants

• Victoria amazonica
• Lotus
• Water hyacinth
• Cattails

References

• “Water Lilies.” Missouri Botanical Garden, www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/visual-guides/water-lilies.aspx.
• “Nymphaea.” The Spruce, www.thespruce.com/growing-water-lilies-1315899.
• “Water Lilies.” Royal Horticultural Society, www.rhs.org.uk/advice/grow-your-own/water-plants/water-lilies