Every venue we have planted in Goa has wanted water somewhere. It is the element people photograph, it cools an outdoor area by a genuinely noticeable amount, and it is the first thing that turns into a problem.
The problem is almost never the pump. It is that a pond gets designed as a shape and built as a shape, when what it actually is is a small ecosystem that has to stay in balance in a climate that swings between four months of dilution and eight of evaporation.
What goes wrong, in order
It turns green. Algae needs light and nutrients. A shallow pond in full sun with a few plants in it has both in abundance. This is the single most common failure and it is a design outcome, not a maintenance one.
It overflows in July, then drops in April. Two and a half metres of rain lands in it and whatever runs off the surrounding beds lands in it too — carrying soil and fertiliser, which feeds the algae. Then the dry season evaporates it faster than people expect.
It silts up. Leaf litter and washed-in soil build a layer on the bottom that releases nutrients continuously. A pond that was fine for two seasons goes green in its third and nobody can see why.
What we build in
The lily pond at Chhupa Rustam sits inside the planting rather than beside it, edged in stone with pebble around the margin. A few things about that are deliberate:
- Depth. Enough water volume that the temperature and the chemistry are stable. Shallow water heats, and warm water holds less oxygen and grows more algae.
- Heavy planting, including surface cover. Lilies are not only decorative — the pads shade the water. Shaded water grows less algae. Submerged oxygenating plants do the rest of the work, competing with algae for the same nutrients.
- An overflow that goes somewhere deliberate. In July the pond will be over its level. Decide where that water leaves, or the monsoon decides for you and it usually takes a bed with it.
- Planting graded away from the water, so runoff from the beds does not carry soil straight in.
- Movement where the setting allows it. The rock water feature we built at the villa at Parra is a different brief — the water is the point rather than the plants — but moving water is also what stops a body of water going stagnant.
The maintenance nobody mentions at quoting stage
A planted pond needs thinning. Lilies will cover the entire surface given two seasons, and at that point the pond is a bed with water under it. Leaf litter has to come out before it breaks down. In the dry season it needs topping up, and topping up with hard water gradually changes the chemistry.
None of that is difficult, and it is perhaps an hour a fortnight on a pond of moderate size. But it is not zero, and a client who was told it was zero is an unhappy client in year two. We would rather say it now.
When we advise against one
If there is no shade available, no budget for planting density, and no appetite for fortnightly attention, a pond will be a green rectangle within a season. In that situation a rock water feature with moving water and no still surface — like the one at Parra — gives you the sound and the cooling with a fraction of the upkeep, and it does not turn.
That is usually the more honest recommendation, and it is the one people are most surprised to hear from a landscaper.
