# Spent Mushroom Compost | Well-Rotted Manure Soil Improver

Spent Mushroom Compost is well-rotted farmyard manure (horse and chicken muck with straw) that has already served a term growing mushrooms. Rich in organic matter and easy to work with, it's a favourite for no-dig gardens — improving drainage in clay, holding moisture in sandy soils and feeding plants with nitrogen, phosphorus and potassium.

## Product Details

-   **Type:** Well-rotted manure compost
-   **Best for:** No-dig beds, soil improvement, mulching borders and veg plots
-   **Benefits:** Improves soil structure, adds nutrients and helps neutralise acidic soils
-   **Note:** Not suitable for acid-loving (ericaceous) plants
-   **Pack sizes:** Jumbo bag (approx 1,000L), standard bulk bag (approx 750L), midi bulk bag (approx 500L), or 25L handy bags in packs of 5, 10, 20 or 40
-   **Coverage:** 1,000L (1m³) covers approx 20m² at 50mm or 10m² at 100mm
-   **Supplier:** Dandy's Topsoil & Landscape Supplies

## Also in the Landscaping Range

-   [Wintermix Compost Mulch](/products/wintermix-compost-garden-mulch)
-   [Springmix Compost Mulch](/products/springmix-compost-garden-mulch)
-   [Composted Mulch Bark Fines](/products/composted-mulch-bark-fines)

Browse more in our [Compost & Topsoil](/collections/compost-topsoil) range, or explore the full [Landscaping](/collections/landscaping) collection at Oak & Outdoor.

## Details

- **Price:** 112.97 GBP - 248.01 GBP
- **Vendor:** Dandy's Topsoil & Landscape Supplies
- **Type:** Compost & Topsoil
- **Tags:** Compost, Compost & Topsoil, Dandy's Topsoil & Landscape Supplies, Landscaping, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Jumbo Bulk Bag approx 1000ltrs ⭐️ BEST BUY! | 155.00 GBP | In stock |
| Standard Bulk Bag approx 750ltrs | 138.00 GBP | In stock |
| Midi Bulk Bag approx 500ltrs | 121.00 GBP | In stock |
| 40 x 25ltr Handy Bags | 248.01 GBP | In stock |
| 20 x 25ltr Handy Bags | 166.52 GBP | In stock |
| 10 x 25ltr Handy Bags | 131.18 GBP | In stock |
| 5 x 25ltr Handy Bags | 112.97 GBP | In stock |

## Images

- Spent Mushroom Compost | Well-Rotted Manure Soil Improver
- Spent Mushroom Compost | Well-Rotted Manure Soil Improver
- Spent Mushroom Compost | Well-Rotted Manure Soil Improver
- Spent Mushroom Compost | Well-Rotted Manure Soil Improver
- Spent Mushroom Compost | Well-Rotted Manure Soil Improver
- Spent Mushroom Compost | Well-Rotted Manure Soil Improver
- Spent Mushroom Compost | Well-Rotted Manure Soil Improver

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> Source: [Oak & Outdoor](https://oakandoutdoor.co.uk/products/spent-mushroom-compost)
> Updated: 2026-10-27