An elegant perinial waterplant, that grows in shallow ponds,
slow flowing water in mud , and is never abundant.
Arrowheads are flowering plants with there
white flowers placed on a long stem.
The Arrowhead will also grow in
streaming water but prefer swallow silent waters.
rhizome of the arrowhead
The rhizome is a horizontal creeper, producing new
plants from buds at its tip. This is the most
important way of propagation, but there is also a
way of propagation by using seeds.
During the flowering season one can find the beautiful
leaves above the surface.
seeds of the arrowhead
The seeds will flow on the water and can be transported
over long distances. Germination only starts after a long
cold period.
flowers of the arrowhead
The flowers occur in a spike with the male flowers
at the top of the flower stalk and the female flowers below.
Arrowhead only flowers if is has a sunny place in the pond.
Leaves
There are three kind of leaves: underwater leaves are thin and long
Above the water they have the typical arrowhead form.
Floating on the water are more or less round leaves.
Parasites
The larvae of the Bloodworm dig
holes in the underwater stem.
The strong points
Arrowhead resists cold weather much better then other waterplants.
The weak points
Arrowhead is vulnerable for insects and slugs
It doesn't grow as fast like the Waterlilly,
so it will be replaced by other floating plants.
.
Arrowhead has beautiful leaves.
arrowhead or Sagittaria sagittifolia
These leaves have three distinct forms:
A under water: long
B floating on the water: round
C above the water:C. arrow
