Choosing the Right Shade Block Percentage
Getting the shade density right makes a genuine difference to plant health. Here's a quick guide:
30% Shade Block — High light-transmission heatwave protection. Ideal for sun-loving crops, tomato patches, citrus & fruit trees, and hardy natives. Filters severe solar glare, cushions against summer hail, and acts as a 100% wildlife-safe physical barrier against birds and flying foxes while allowing maximum sunlight for fruit setting.
50% Shade Block — Light to moderate filtering. Best for raised garden beds, grow bags, leafy greens, and fruiting vegetables (tomatoes, capsicums, cucumbers). Also useful as a greenhouse panel cover or light barrier.
70% Shade Block — The most popular choice for delicate flora and livestock cooling. Ideal for protecting ferns, orchids, bromeliads, shade houses, and nursery stock from peak summer heat while allowing air circulation.
90% Shade Block — Maximum privacy and wind reduction. Best suited as a fence privacy screen, windbreak, dust suppression barrier, pool shade, or patio canopy. (Note: Not suitable for vegetable gardens or fruit trees).
98% Shade Block — Near-total sun screening. Best suited to commercial nursery propagation areas, privacy fencing, or situations requiring maximum heat and UV reduction.
Frequently Asked Questions
Q: What is shade cloth made from?
A: Our shade cloth rolls are manufactured from mono-tape UV-stabilised HDPE (high-density polyethylene) knitted fabric. This construction provides superior strength, consistent shade coverage, and resistance to tearing and fraying — even after prolonged exposure to harsh Australian sun.
Q: What percentage shade cloth do I need for my vegetable garden?
A: For most Australian vegetable gardens, 30% to 50% shade block is the ideal range. Sun-loving crops like tomatoes, capsicums, cucumbers, and citrus trees thrive under 30% shade cloth, which filters intense midday heatwave glare without starving plants of the sunlight needed to set fruit. For tender leafy greens, herbs, and young seedlings, 50% shade cloth provides extra cooling and prevents scorched leaves.
Q: Can shade cloth be used on a greenhouse?
A: Yes — shade cloth is one of the most effective ways to regulate temperature inside a greenhouse during summer. Drape or attach it over greenhouse glazing or a shade house skeleton to reduce internal temperatures and protect heat-sensitive plants. The 70% and 90% rolls are most commonly used for greenhouse applications.
Q: How do I cut shade cloth to size?
A: HDPE knitted shade cloth can be cut with sharp scissors or a utility knife. To prevent fraying at the cut edge, run a lighter quickly along the edge to lightly melt and seal the fibres — a standard technique used by nurseries and commercial growers.
Q: Can shade cloth be used for privacy screening or wind barriers?
A: Absolutely. Beyond plant protection, shade cloth is widely used as a practical barrier for building sites, farm fencing, and privacy screening. The dense weave of the 90% and 98% rolls is particularly effective at blocking wind, reducing dust, and deterring unauthorised access.
Q: Can I use shade cloth to protect fruit trees from birds, flying foxes, and hail?A: Yes! A 30% shade block roll is an ideal, wildlife-friendly alternative to standard netting. Because it is a tightly knitted mesh without open holes, birds and flying foxes bounce off safely without getting entangled. The 30% density also cushions against summer hail and severe wind while transmitting 70% of natural sunlight—allowing your fruit trees to ripen without sunburn or pest damage.
Q: How long does shade cloth last outdoors?
A: With UV-stabilised HDPE fabric, our shade cloth is built for long-term outdoor use. Lifespan depends on exposure conditions, but quality knitted shade cloth typically performs well for several seasons when installed correctly and not left under heavy mechanical stress (e.g. pooling water or prolonged wind tension).
