Potamogeton crispus - Curly Pondweed

Family:	Potamogetonaceae
Habit:	Perennial
Synonyms:	P. serratus.
Range:	Europe, including Britain, to Asia.

Potamogeton crispus (Curly Pondweed) is a Perennial. It has a fast growth rate. It has a hardness rating of 0.
Curly Pondweed will flower in November to April. The flowers from this plant are hermaphrodite (has both male and female organs) and they are pollinated by

Soil Information

Curly Pondweed will grow in light (sandy),medium (loamy),hard (clay) soil. It is not necessary for the soil to be well drained.
The soil prefers the following PH / acid levels :
- pH of less than 6, Acidic soils
- pH between 6 and 8, Neutral soils
- pH greater than 8, Basic soils
Curly Pondweed prefers soils

Ideal Planting Locations

Curly Pondweed should not be planted in shady areas.

Lakes, ponds, streams, canals etc[17]. Found in fresh and in saline water[235].

Planting places suited to this plant described below.

• Is a pond plant

Cultivation Details

A submerged aquatic plant that can be used as an oxygenator of ponds[1]. It is best given a loam based medium in full sun[200]. It prefers alkaline water[200]. Prefers cool water[188]. A fast growing plant in need of constant checking to make sure it does not overrun the pond[200]. Hybridizes freely with other members of this genus, the resulting progeny is usually sterile[200].

Edible Uses*

* See disclaimer
Edible Rating: 2/5
Young leaves - cooked[105, 177, 179]. Root[179]. No more details are given.

• Leaves -
• Root - includes bulbs, corms, tubers, rhizomes etc.

Medicinal Uses*

* See disclaimer
Medicinal Rating: 0/5
None known

Propagation

Seed - we have no information for this species but suggest sowing the seed in a pot that is standing in its own depth of water in a greenhouse as soon as the seed is ripe if this is possible. Stored seed is likely to have a short viability. Prick out the seedlings when they are large enough to handle and increase the depth of water around the pot until the plants are covered by a few centimetres of water. Grow the plants on in a sunny position in the greenhouse for their first winter, increasing the depth of water as the plants grow larger. Plant them out into their permanent positions in early summer. Division in spring[56]. Cuttings of erect shoots in the growing season[56].

Known Hazards

None known

Other Uses

None known

Cultivars

no recorded cultivars

References

Flora of the British Isles.
Clapham, Tootin and Warburg.
Author: Clapham, Tootin and Warburg.
Rating:
Publisher : A very comprehensive flora, the standard reference book but it has no pictures.
Date of Publication : 1962

The New RHS Dictionary of Gardening. 1992.
Huxley. A.
Author: Huxley. A.
Rating:
Publisher : Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
Date of Publication : 1992

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