UK compost
What compost for sweet 100 cherry tomato in the UK?
Solanum lycopersicum 'Sweet 100'
More about sweet 100 cherry tomato in the UK
Which compost sweet 100 cherry tomato needs
For sweet 100 cherry tomato the mix to buy is peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Fertile, organic-matter-rich soil with slightly acidic to neutral pH (around 6.0-6.8) and free drainage. Tolerant and productive in large containers with quality compost.In British garden centres the bagged growing medium is sold simply as “compost” (multipurpose, ericaceous, or loam-based John Innes), which is a different thing from the rotted garden “compost” you make in a heap — for a pot you want the bagged kind.
Peat-free compost
Buy peat-free. The sale of peat compost to home gardeners is being phased out across the UK, and the RHS recommends peat-free on environmental grounds. A good peat-free multipurpose grows sweet 100 cherry tomato perfectly well; the one habit to change is watering — peat-free dries faster at the surface while still moist below, so check by feel a knuckle deep rather than trusting the look of the top.
Ericaceous or multipurpose?
Sweet 100 Cherry Tomato does not want a rich, water-holding compost — it wants sharp drainage. Cut peat-free multipurpose roughly half-and-half with horticultural grit, sharp sand or perlite, and always pot into a container with drainage holes. A "cactus and succulent" bagged mix is a ready-made shortcut.
For the full recipe, pH and drainage detail (US wording), see the sweet 100 cherry tomato soil & potting-mix guide.
Compost for Sweet 100 Cherry Tomato in the UK — frequently asked questions
What compost should I use for sweet 100 cherry tomato in the UK?
Use peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Fertile, organic-matter-rich soil with slightly acidic to neutral pH (around 6.0-6.8) and free drainage. Tolerant and productive in large containers with quality compost. In UK garden centres this is sold simply as "compost" — the bagged growing medium, not garden-made leaf-mould — so match the description above rather than a brand.
Can I use ordinary multipurpose compost for sweet 100 cherry tomato?
Not on its own — multipurpose compost holds too much water for sweet 100 cherry tomato and will rot the roots. Cut it roughly 50:50 with horticultural grit, sharp sand or perlite so it drains fast.
Should the compost be peat-free?
Yes. Sales of peat compost to home gardeners are being phased out in the UK, and the RHS recommends peat-free for environmental reasons. Modern peat-free multipurpose composts grow sweet 100 cherry tomato perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does sweet 100 cherry tomato need grit or perlite added?
Yes — sweet 100 cherry tomato must have sharp drainage. Add about one part horticultural grit or perlite to one part compost, and always use a pot with drainage holes.
What pot and drainage does sweet 100 cherry tomato need?
Always a pot with drainage holes. Rich, fertile, well-drained loam. Stand it on a saucer, empty any water that collects after watering, and never leave the pot sitting in a full outer cover — waterlogged compost in a cool UK room is the commonest cause of root rot.
More sweet 100 cherry tomato care
See the full sweet 100 cherry tomato care guide, its UK watering and UK hardiness.