GARDENS & LANDSCAPING
Getting it done
For very dry areas in South Africa, combine:( a), where possible, efficient irrigation methods such as drip or micro-sprinkler systems;( b) water-harvesting and soil restoration techniques like Zai * pits and adding organic matter;( c) drought-smart crop mixes and protected cultivation; and( d) farmer organisation along with effective local water governance.
Building that micro-oasis
Soil and Moisture Harvesting
• Dig planting pits( 30 cm wide × 25 cm deep) or use shallow trenches. Fill the base with compost and a little coarse sand or even goat manure( since goats are ubiquitous in the area).
• Cover the soil with 5 – 8 cm of mulch( such as dry grass, reeds, or shredded cardboard) to reduce evaporation.
• If there is any rainfall runoff, however limited, that crosses your site, build micro-catchments or stone bunds( 15 cm high) to guide water into beds.
Install a water system Make your own drip irrigation feeder rig( gravity-fed):
• 100L plastic drum( R350 – R500)
• 20 – 30 m of 13 mm tubing + emitters( R400 – R600)
• Basic inline filter + pressure reducer( R150)
• Stand to elevate and carry the weight of the drum 1 – 1.5 m high
• Optional: connect to tank, pump or manual refill from the river
Note: Drip irrigation saves 60 – 80 % of water compared to open watering. It delivers moisture directly to the roots, resulting in less waste.
Composting
• Collect kitchen scraps, dry reeds, and animal manure in a corner pit( 1 × 1 m).
• After 3 months, use decomposed material in cultivation beds.
Interpretive indigenous garden at SANParks Sendelingsdrift.
Simple shade and protection from birds Low-cost frame:
30 – 50 % shade cloth:
Optional:
25 mm PVC or wooden poles( R300 – R600 total).
R25 – R35 per m ²— cover all seedlings and tender crops.
Old window frames or plastic bottles for windshields on the sides to slow down evaporative loss. Refer to the role of shade cloth and also ecobricks.
Economy of scale: A 100 m ² garden yields about 60 – 80 kg of mixed produce per season. Its retail value is approximately R800 – R1 200. The initial cost of materials to build the rig generally falls below R2 500 – R3 000. These figures and material costs are rough estimates and should not be considered definitive advice.
Graphic created by OpenAI.
Notes: * Zai pits: These are small, dug-out planting pockets used in dryland agriculture to collect rainwater and enhance soil fertility. Farmers dig the pits, fill them with organic material like compost or manure, and then plant seeds directly in them.
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