This underground compost basket is designed to convert kitchen food waste directly into nutrient-r...This underground compost basket is designed to convert kitchen food waste directly into nutrient-rich compost beneath the soil. Once buried, it creates a natural composting chamber where soil microbes work continuously to break down food scraps, leaving nutrients where plants need them most. It requires no turning or mixing and remains discreet with only the lid visible above ground. This underground compost system works year-round to decompose kitchen scraps with minimal effort. It keeps composting contained and reduces mess or smells while ensuring a steady release of nutrients directly into the surrounding soil. Worms can be added for faster breakdown, but the process also works naturally without them. Benefits include reducing food waste, improving soil structure and moisture retention, feeding plant roots directly with slow-release nutrients, and keeping pests and odours under control due to its buried design. Place the compost basket in raised beds, borders, or near nutrient-hungry crops such as courgettes or tomatoes. Choose a well-drained, sunny spot and ensure easy year-round access. One compost basket per 1–2m² of growing space is usually enough. Once installed, it blends seamlessly into the garden landscape. Composting worms can speed up decomposition, particularly in warm conditions. Specification: Underground compost basket with ventilation, no turning or mixing required, optional use with composting worms, ideal for raised beds, borders, and vegetable patches, long-term outdoor soil installation. Sizes: Small assembled size: W:21 x D:13 x H:19cm. Large assembled size: W:31 x D:17.5 x H:25cm. Both come as packs of 2. It's best to avoid adding garden weeds and grass clippings as they can slow decomposition. Yes, the bin will work in heavy clay soil, but ensure drainage is improved. Normally, no emptying is required as food waste shrinks as it decomposes. It will work without worms as natural soil microbes break down the waste effectively. The basket is designed for long-term outdoor use when buried properly. Choose an easily accessible, well-drained area such as raised beds, borders, or vegetable gardens for year-round use.
Best current price£12.99from Gardening Naturally UK
The Gardening Naturally Underground Compost Baskets are for home gardeners seeking an effective and discreet way to transform kitchen waste into valuable plant fertilizer directly in their garden soil. The key benefit is effortless, continuous composting that enriches your soil where plants need it most, reducing waste and improving soil health. A caveat is that while it works naturally, adding composting worms can significantly speed up the decomposition process, especially in warmer conditions. These baskets create a contained composting chamber underground, requiring no turning or mixing, and only the lid remains visible.
All features
Model Part Number
COMBS
Brand
Gardening Naturally
Extended Product Information
FAQs
How quickly does it compost?
Composting speed depends on soil temperature, moisture, and microbial activity. Natural decomposition can take several months. Adding composting worms can significantly speed up the process, potentially yielding results in weeks.
Do I need to add worms?
No, worms are optional. Natural soil microbes will break down the food waste effectively over time. Worms, however, will accelerate the decomposition process, particularly in warmer conditions.
What size basket should I choose?
The small size (W:21 x D:13 x H:19cm) is suitable for smaller gardens or supplementing nutrients for a few plants. The large size (W:31 x D:17.5 x H:25cm) is better for larger areas or higher volumes of kitchen waste.
Can I put this in heavy clay soil?
Yes, the basket will work in heavy clay soil, but it is recommended to improve drainage around the basket to prevent waterlogging.
What should I avoid putting in the basket?
It's best to avoid adding large quantities of garden weeds and grass clippings, as these can slow down the decomposition of food scraps.
Do I need to empty the basket?
Normally, no emptying is required. As food waste decomposes, it shrinks and integrates into the soil, leaving space for more scraps.
How many baskets do I need?
Generally, one compost basket per 1–2 square meters of growing space is recommended to provide adequate nutrient enrichment.
Is it safe to use near vegetables?
Yes, the compost produced is nutrient-rich and safe for use near vegetables, helping to feed plant roots directly.
Troubleshooting
Basket not decomposing waste effectively
Ensure the basket is properly buried with soil contact. Add composting worms to speed up the process, especially in cooler weather. Check that you are not adding too many garden weeds or grass clippings.
Unpleasant odors detected
Ensure the lid is securely closed and the basket is fully buried. Composting too much nitrogen-rich material (like certain food scraps) without enough carbon material can cause odors; balance with drier materials if possible.
Water pooling around the basket
The area may have poor drainage. Dig around the basket to improve soil aeration or consider a different, better-drained location for future installations.
Pests are attracted to the lid
Make sure the lid is fully sealed. The buried design should deter most pests; ensure no food waste is left exposed around the opening.
Pros and Cons
Pros
Reduces kitchen food waste effectively.
Improves soil structure and water retention.
Provides a direct, slow-release nutrient source for plants.
Minimizes garden odors and pest attraction.
Requires minimal user effort (no turning/mixing).
Works year-round for continuous composting.
Cons
Decomposition can be slower without added composting worms.
May require improved drainage in heavy clay soils.
Not suitable for large volumes of garden weeds or grass clippings.
Placement requires consideration for accessibility and sun exposure.
Setup, Compatibility & Care Instructions
Setup:
Choose a well-drained, sunny spot in your garden, such as a raised bed, border, or vegetable patch. Ensure it's easily accessible for adding kitchen scraps.
Dig a hole large enough to accommodate the basket. Place the compost basket into the hole.
Bury the basket, leaving only the lid visible above the soil line.
Begin adding kitchen food waste.
Compatibility:
Ideal for raised beds, borders, and vegetable gardens.
Works effectively in most soil types. For heavy clay soils, consider improving drainage around the buried basket.
Composting worms can be added to accelerate decomposition, especially in warmer climates, but are not essential for functionality.
Care:
The basket is designed for long-term outdoor use when properly buried.
No regular emptying is typically required as the decomposed waste shrinks.
Avoid adding large amounts of garden weeds or grass clippings, as these can slow down the decomposition process.
If decomposition appears slow, consider adding composting worms or ensuring the surrounding soil is adequately moist.