At the start of Autumn your pond plants will start to collapse. Summer has been and gone so quickly!
Attention to pond plants at the start of Autumn:
- Waterlily leaves begin to turn brown - remove them from the pond so that they do not sink to the bottom and rot away under water over Winter.
- Remove any annual floating plants that will turn black in the first frosts and begin to decay in your pond water.
- Net duckweed out from pond surface so that it does not seed down onto the bottom of the pond to reappear next Spring.
- Rescue Frogbit plants and Sagittaria sagittifolia bulbils before starting Autumn maintenance.
British Native Frogbit (Hydrocharis morsus-ranae):
- Starting to breakdown now as temperatures drop
- Dormant buds will drop off the leaves and fall to the base of the pond
- Buds are 5x10mm or 1/8" x 1/4" and look like apple pips.
- These will easily be lost if you do not remove some now while you can still see them
- Put some plantlets in a bucket for safety until after you have finished your Autumn maintenance in November.
- Looking yellow leaved and over.
- Find the bulbils in the mud of the pond and replace them in the baskets.
- The parent plant will die back after a couple of years but the new plants do not grow from the centre of the old basket but from the bulbs that can set down 6-8" away from the original basket.
- Tree leaves will soon start to fall and the net should be fixed across the pond to prevent them falling into the water
- Put the net in place as soon as the first winds are forecast - the first windy night will bring down more leaves than you expect.
- Leaves should not be allowed to sink to the base of the pond to rot.
- Use the skimming net to remove them by hand before they sink.
- Some tree leaves take a long time to rot away and use up a lot of oxygen in the process.
Net earlier rather than later to avoid extra work!