Melcourt SylvaGrow Houseplant Compost Review

Overview

Melcourt makes several distinct peat-free product lines, not one compost sold in different bag sizes, and it’s worth being precise about which one this is. We’ve already reviewed their generic SylvaGrow Multi-Purpose — a 50-litre garden bag intended for general use that happens to work adequately for houseplants. SylvaGrow Houseplant is a genuinely different formulation: a finer blend of bark, wood fibre, and coir specifically built for pot culture, sold in smaller 5-litre resealable bags rather than a garden sack.

The distinction matters in the pot, not just the marketing.

What’s Actually Different From the Multi-Purpose Bag

The Multi-Purpose formulation is built to perform reasonably across garden beds, containers, and general use — a compromise mix. The Houseplant formulation drops that compromise: finer bark and wood fibre particles sized for the smaller root volumes of potted plants, sourced from the same sustainably-managed forestry by-products, blended with coir for moisture retention appropriate to indoor pot culture rather than outdoor beds exposed to rain.

In practice, we repotted matched Pothos and Philodendron cuttings into each — the Houseplant formulation side by side with the Multi-Purpose bag we already had on the test bench. At three months, the Multi-Purpose substrate had started the surface compaction we described in that review; the Houseplant formulation still had visible crumb structure and hadn’t channelled water in the same way.

Nutrients and Feeding

Balanced nutrients are formulated to last the plant’s first 4-6 weeks after repotting, after which supplemental feed becomes necessary — a shorter window than Dalefoot’s months-long slow release from decomposing wool. This isn’t a flaw so much as a different design choice: SylvaGrow Houseplant isn’t trying to be a slow-release feeding substrate, just a structurally sound peat-free base you feed on a normal schedule.

Where Dalefoot Still Wins

The honest comparison against our top pick: Dalefoot’s wool-and-bracken structure holds moisture without sogginess in a way this bark-and-coir blend doesn’t quite match, and the built-in slow-release feeding genuinely reduces how often you need to fertilise. SylvaGrow Houseplant is the better buy specifically when the price gap matters — at roughly half Dalefoot’s per-litre cost, for a starter collection or a large number of pots where upgrading everything to Dalefoot is a real expense, this is a legitimate, purpose-built peat-free option rather than a compromise.

The Verdict

SylvaGrow Houseplant earns its place as a genuinely different, purpose-built product from Melcourt’s own generic Multi-Purpose bag — better structure retention in a pot, RHS-endorsed, and sized appropriately for houseplant repotting rather than garden use. It doesn’t match Dalefoot’s moisture behaviour or feeding, but for anyone who wants a proper houseplant-specific peat-free at a lower price than the top pick, this is the right one — not the same maker’s multi-purpose bag stretched to cover a job it wasn’t built for. For methodology see how we review.