King's spear

Nymphaea | Also known as: Jacob's rob, Yellow asphodel | Rating: 5 votes | Print / Pdf

A genus of hardy and tender aquatic perennials, nymphaea includes arguably the most popular range of flowering plants for tranquil garden lakes and ponds. More commonly known as the waterlily, its floral display is by far its most attractive aspect, with its foliage chiefly submerged with only dark green pads floating on the water surface. Its spring blossoms are beautifully designed, with open petals forming a cup-shape. Coming in colours as diverse as pink, lilac, violet and white, its bracts lie flat on the water surface, allowing the flower to float. Anchored by rhizomatous roots, it thrives in loamy or clay soil in full sun but dislikes moving water, so a sheltered location is essential. Pruning is not necessary.

Rate it:
Known dangers?
  • no
Height [m]
  • 0 - 0.1
Spread [m]
  • 0.9 - 2.2
Dominant flower colour
  • Varies
Flower Fragrance
  • No, neutral please
Foliage in summer
  • Grey-green
Propagation methods
  • seed
  • division
  • offsets
Growth habit
  • Clump-forming
  • Erect
  • Irregular
  • Neutral
Hardiness zone
  • Z3-11
Heat zone
  • H12-1
Winter temperatures [°C]
  • -40 - 4
Heat days
  • 0 - 210
  • well-drained
Soil type
  • Clay
  • loams
  • Sheltered
Standard category
  • Aquatic & semiaquatic plants
  • Aquatic plants
Grown for
  • Attractive flowers and foliage
Creative category
  • Colours
  • Show-offs
  • Pond plants
Garden type
  • Pond
Gardening expertise
  • intermediate
Time to reach full size
  • up to 10 years