Mineral Based Soil

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Size: 27 litres
Price:
Sale price$38.00 Regular price$40.00

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Description

Discover the ultimate growing medium for cacti, succulents, and bonsai plants with Dr. Greenthumbs’ Mineral Based Cactus & Succulent Potting Soil.

This premium blend is crafted by passionate growers and endorsed by cactus nursery professionals, delivering a soil mix that meets the highest horticultural standards. Whether you're cultivating rare taproot cacti or everyday succulents, this unique potting soil is designed to encourage strong root growth and vibrant plant health.

Features

  • Proprietary Australian Blend: 100% unique and unmatched in the local market for consistent results across various growing conditions.

  • Fast-Draining Formula: Rapid drying helps prevent rot and creates a root environment that promotes strength and resilience.

  • Infused with Calcium & Silica: Encourages healthy growth, strengthens cell walls, and aids in nutrient transport throughout the plant.

  • High Mineral Content: Retains nutrients efficiently, reducing fertilizer leaching and supporting long-term soil health.

  • Use Straight From the Bag: Perfect as-is or as a base for your custom mix.

  • Professionally Endorsed: Developed and used by nursery professionals for reliability and top-tier quality.

Why You Should Buy

Dr. Greenthumbs' potting soil stands apart due to its proprietary mineral-rich composition, ensuring optimal drainage, nutrient retention, and aeration. Tailored specifically for cactus, succulent, and bonsai enthusiasts, it addresses the key issues of poor root health and plant rot often caused by generic pine-based soils. This blend empowers both novice and experienced growers to achieve robust growth, vibrant color, and healthier plants with less maintenance and fewer inputs.

Ingredients

  • 70% Mineral Blend: Pumice, zeolite, volcanic basalt, gypsum, limestone

  • 30% Organic Blend: Premium potting soil & organic compost

FAQs

Can I use this soil for all succulents and cacti?
Yes, it's ideal for all varieties, including rare taproot cacti, bonsai, and common succulents.

Is this soil compatible with all fertilizers?
Absolutely. It works with any fertilizer and even helps reduce the frequency of feeding by retaining nutrients efficiently.

Does it help with overwatering issues?
Yes, its rapid drying formula helps avoid root rot and promotes stronger roots.

Is the product organic?
It contains a 30% premium organic compost blend and 70% mineral-based ingredients for balanced plant nutrition.

Has the formula changed recently?
Yes, as of March 2023, the blend has been further refined to enhance drainage and usability, especially for newer growers.

🤔 How Much Soil You Need?

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Need To Know More?

What is Mineral Based Soil, and what plants is it for?

Mineral Based Soil is a fast-draining mix designed for cacti, succulents, lithops, caudiciforms, aloe, and xeric bonsai. It’s beginner-friendly and great for plants prone to rot. For jungle cacti or thirsty succulents, blend in a bit more moisture-holding material.

What makes Mineral Based Soil different from regular potting mix?

It dries faster, holds its structure, and reduces the risk of root rot from soggy conditions. The mix re-oxygenates roots quickly—making it ideal for overwaterers or plants that hate wet feet.

What’s in Mineral Based Soil, and what do the minerals do?

It’s a 70% mineral blend (pumice, zeolite, basalt, gypsum, limestone) and 30% organic. Pumice boosts drainage, zeolite holds nutrients, gypsum supplies calcium and sulphur, and limestone moderates pH. Basalt adds long-term mineral balance.

How do I pot with Mineral Based Soil, and how often should I water?

Use a pot with drainage, remove soggy old soil, and let the mix dry fully between waterings. In warm light, water weekly; in low light, every 2–4 weeks. If it goes bone-dry, bottom-water or rehydrate slowly in stages.

Can I adjust Mineral Based Soil for thirstier or unique plants?

Yes—add up to 30% coir or organic mix for plants needing more moisture. You can also add extra pumice for faster drainage. Avoid fine sand, which clogs air gaps; use chunky grit if needed.

Can I use fertiliser with Mineral Based Soil?

Yes—use controlled-release pellets or diluted liquid feeds. The mineral content helps retain nutrients, so lighter feeding is often enough. Flush occasionally to prevent salt buildup, especially if bottom-watering.

Is Mineral Based Soil safe for seedlings, cuttings, or propagation?

Yes—porous stones hold a thin film of moisture ideal for rooting. For seed trays, consider sterilising first to reduce fungus. Use gentler watering and good airflow for seedlings.

Will Mineral Based Soil attract pests or fungus?

The fast-drying surface helps deter gnats, and most fungal growth is harmless. If mushrooms or fuzz appear, reduce watering and improve airflow. Avoid letting the mix stay constantly damp.

Is Mineral Based Soil safe for indoor use and around pets?

Yes—just avoid letting pets ingest it. It’s low-odour and made from inert minerals and compost. Use a tray when potting to manage dust or mess indoors.

How should I store leftover Mineral Based Soil?

Keep it dry and sealed in a cool spot. If it gets wet in storage, spread it out to dry before re-bagging. Properly stored, the mineral mix lasts for multiple seasons without compacting or degrading.

What sizes does Mineral Based Soil come in?

It’s available in 8L, 15L, and 27L bags. Use the site’s soil calculator to estimate how much you’ll need based on your pot size.

Does Mineral Based Soil change between batches?

Yes—natural minerals can vary slightly in appearance or size. The mix was refined in March 2023 to improve drainage, but the overall performance remains consistent.

Frequently Asked Questions

A super free-draining, mineral-heavy cactus and succulent mix that keeps roots airy and lets pots dry out between waterings. It blends pumice/perlite with volcanic rock (scoria/basalt), plus a touch of zeolite, gypsum, and limestone for structure and calcium. That combo fights compaction and helps prevent rot.

Cacti (columnar and globular), succulents (Echeveria, Haworthia, Aloe, Crassula, etc.), caudiciforms, lithops/mesembs, and xeric bonsai that hate “wet feet.” For jungle cacti (Epiphyllum, Rhipsalis) or thirstier succulents, see the tweak tips below.

 8 L and 27 L bags.

Yep. Give it a quick toss to redistribute fines and pot up. No pre-rinsing required.

It’s intentionally mineral-forward—more rock, less sponge—so it drains fast and stays airy for arid plants. Organic-heavy mixes stay wet longer, which is the opposite of what cacti want.

Porous mineral components like pumice/perlite and volcanic rock (scoria/basalt), plus zeolite (CEC and odour control), gypsum (calcium/sulphur), and limestone (adds calcium, tempers acidity). Ratios may vary slightly between batches to keep performance consistent.

Chunky, porous stones create big air gaps so water runs through and the root zone re-oxygenates quickly. That reduces rot risk and encourages fat, healthy roots.

Pick a pot with a generous drainage hole. Gently tease old soil from roots, pot into Mineral Based Soil, and don’t bury the crown. Top-dress with a thin layer of mix or fine gravel to keep foliage dry.

Let it dry thoroughly between drinks. In warm, bright conditions, that might be weekly; in cool/dull weather, every 2–4 weeks. Water deeply, then wait until the pot feels light again before the next soak.

You can, but top-watering is simpler: pour until water runs freely from the drain hole, then let it drain completely. If you bottom-water, give the occasional top-water to flush any salts.

Yes. Even though it drains fast, the porous stones hold a thin film of water—great for cactus seedlings and cuttings. Start with smaller sips and increase as roots develop.

Absolutely—this is the lean, mineral substrate they prefer. Just be strict about their seasonal “dry rest” rules.

Yep. For jungle cacti or succs that like a touch more moisture, blend in up to 20–30% fine coco/coir or a peat-free, chunky potting component. Keep it airy; don’t over-dampen the recipe.

Use a gentle, balanced feed during active growth (spring/summer). A weak liquid feed every 3–4 weeks or a light-rate controlled-release fertiliser on the surface works well—these plants are light feeders, so easy does it.

Optional but handy. A thin layer of fine gravel or the same mineral mix keeps crowns dry, discourages fungus gnats, and looks tidy.

Mineral particles don’t slump like bark/wood chips, so structure holds up over multiple seasons. Refresh when you repot or if fines build up.

You can. Although it’s best to discard the soil if the previous plant had rot or pests.

Totally. Terracotta breathes (dries faster); plastic holds a bit more moisture. Adjust your watering accordingly.

You don’t need to wash it; a quick shake of the bag or a light mist after potting keeps fines down.

Keep the bag sealed, dry, and off the ground. If it gets wet, spread it thin to dry before re-bagging.

The components are inert minerals/rocks with no added pesticides. Still, keep curious pets from ingesting it.

Expect to water less often but more thoroughly. Your plant will love the extra oxygen, but your old schedule may be too frequent—watch the plant and the pot weight.

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