Soil Ninja Base Mix | Premium Houseplant Compost

Soil Ninja Base Mix is a premium, peat-free houseplant compost designed to give your indoor plants everything they need from a great growing medium. Carefully blended from coco coir, perlite and nutrient-rich worm castings, it provides an excellent balance of moisture retention, drainage and aeration to support healthy roots and strong, flourishing plants.

Unlike ordinary multipurpose compost, Soil Ninja Base Mix has been developed specifically with houseplants in mind. Its light, open structure allows roots to breathe while retaining enough moisture to keep plants hydrated. Naturally enriched with worm castings, it also provides essential nutrients and beneficial soil microorganisms.

Best of all, it's ready to use straight from the bag. Whether you're repotting a much-loved Monstera, refreshing a Peace Lily or giving your growing houseplant collection a little TLC, this is an excellent everyday compost for most indoor plants.

Why choose Soil Ninja Base Mix?

• Premium houseplant compost: Made with the same high-quality ingredients used in Soil Ninja's specialist growing mixes.
• Excellent drainage and aeration: Perlite creates air spaces throughout the compost, helping roots access oxygen and allowing excess water to drain away.
• Balanced moisture retention: Carefully prepared coco coir absorbs and distributes moisture without creating an overly dense growing medium.
• Naturally nutrient-rich: Worm castings provide gentle plant nutrition and organic matter to support healthy growth.
• Biologically active: Contains beneficial microorganisms and naturally occurring soil life that contribute to a healthy growing environment.
• 100% peat-free: A carefully formulated alternative to traditional peat-based composts.
• Ready to use: No measuring, mixing or additional ingredients required for everyday houseplant repotting.

What's in Soil Ninja Base Mix?

Three carefully selected ingredients work together to create a balanced growing medium:

• Coco Coir: A lightweight, peat-free material made from coconut husks. Soil Ninja uses washed and buffered coir to provide reliable moisture retention and drainage.
• Perlite: Lightweight, expanded volcanic material that improves drainage and creates essential air spaces around plant roots.
• Worm Castings: A natural, nutrient-rich soil amendment that provides organic matter, plant nutrients and beneficial microorganisms.

Which houseplants is Base Mix suitable for?

Soil Ninja Base Mix is a versatile, all-round compost suitable for the majority of indoor plants when watered according to their individual needs.

It's a great everyday choice for popular foliage plants including Pothos, Spider Plants, Peace Lilies, Ficus, Monstera, Philodendron and many other tropical houseplants.

Some plants have more particular requirements. Cacti and succulents generally prefer a faster-drying mix, while larger aroids with substantial roots may benefit from a chunkier substrate. For these, you can choose a specialist blend or adapt Base Mix with additional ingredients.

How to use Soil Ninja Base Mix

1. Choose a suitable pot: Select a pot with drainage holes, ideally only slightly larger than your plant's existing root ball.
2. Prepare your plant: Gently remove it from its current pot, loosening any tightly packed roots and removing loose, exhausted compost.
3. Repot: Add some Base Mix to the bottom of the new pot, position your plant and fill around the roots. Gently firm the compost without compacting it.
4. Water appropriately: Check your plant's moisture requirements and water when needed, allowing excess water to drain away.

Our tip: Base Mix contains natural nutrients from worm castings, providing a useful start for freshly repotted plants. As these nutrients are gradually used, continue feeding with a suitable houseplant fertiliser during active growth.

Product details

• Brand: Soil Ninja
• Product: Base Mix
• Type: Premium, all-purpose indoor plant compost
• Ingredients: Coco coir, perlite and worm castings
• Properties: 100% peat-free, aerated and naturally nutrient-enriched
• Suitable for: Most indoor houseplants
• Available sizes: 5 litres and 10 litres

Please note: Soil Ninja Base Mix is a biologically active growing medium. Small, naturally occurring soil organisms may be present and are a normal part of this living compost.

Looking for something more specialised? Explore our Soil Ninja collection for expertly formulated plant-specific composts and growing media.