Agribon Row Covers

Protect your crops. Extend your growing season.

37 products

White row-cover fabric beside harvested broccoli

Agribon Row Covers: Protect Your Crops and Extend the Season

Find the right Agribon cover for insect protection, light frosts, or heavier cold-weather coverage. Choose a fabric grade for your growing conditions, then select a width and length that leave room for plant growth and securely anchored edges.

Choose the Right Agribon Grade

Grade Best use Approximate frost protection* Light transmission
AG-15 Lightweight insect barrier Choose for insect protection, not frost protection 90%
AG-19 Insect control and light frost protection 2–4°F 85%
AG-30 Medium frost protection 4–6°F 70%
AG-50 Heavy frost protection; also available as frost blankets 6–8°F 50%
AG-70 Extra-heavy frost protection 8°F or more 30%

*Ratings describe approximate degrees of frost protection, not a guaranteed minimum outdoor temperature. Results vary with crop sensitivity, weather, soil warmth, installation, and how securely the edges are sealed. Heavier fabrics admit less light; monitor conditions and uncover or ventilate as needed.

What Are Agribon Row Covers?

Agribon row covers are spun-bonded polypropylene fabrics used to help protect vegetables, seedlings, fruit crops, and nursery plants. The fabric allows air, water, and light to pass through while providing a physical barrier. Different grades balance insect exclusion, warmth, fabric weight, and light transmission.

AG-15 is a lightweight choice for insect protection. AG-19 provides insect control and light frost protection, while AG-30, AG-50, and AG-70 offer progressively heavier cold-weather coverage. Select by grade rather than assuming every white row cover provides the same protection.

Insect Protection and Pollination

Install covers before pests become established, and seal the edges to help keep insects out. Check beneath the fabric regularly for trapped pests, weeds, and plant growth. Covers work as a physical barrier; they do not replace routine crop monitoring.

Row covers also exclude bees and other pollinators. Uncover insect-pollinated crops such as squash and melons when flowers require pollination, or use an appropriate hand-pollination method. Keeping covers closed over flowering crops can reduce fruit set when pollinators cannot reach the flowers.

Installation and Care

Lightweight covers can float over suitable crops with enough slack for growth. Hoops or frames help keep fabric off delicate plants and support heavier covers. Choose a size that covers both the bed and the sides, with extra material for anchoring. Secure edges against wind and inspect the fabric for holes or tears.

Monitor temperature and moisture beneath the cover, especially during warm, sunny weather. Remove or ventilate covers as conditions require. Handle the fabric gently, avoid sharp edges, and clean and dry it before storage. Reuse depends on fabric condition, handling, and exposure.

For more information, see our resource center for information on how to select row covers and how to build low tunnel hoop houses.