House & Garden Bat Mix Special




  • Consistently high performing potting soil
  • Specifically designed for organic growing methods
  • Dutch quality substrate
  • RHP certified
  • High Water holding capacity
  • Enriched with organic Bat Guano
  • Explosive Growth!

House and Garden are a well-known brand name the hydroponic industry, having been developing and manufacturing nutrients and substrates since 1990. One of our best-selling lines of soil mixes, indoor hydroponic growers have relied on House and Garden products for its tried and tested results in producing superior quality fruits. House & Garden Bat Mix gives you, the grower, instant access to achieving gourmet flavours from your fruits thanks to its key organic ingredient, Bat Guano.

A well formulated and balanced combination of black and white peat, organic lime perlite organic fertilisers and of course, the Bat Guano, gives House and Garden Bat Mix soil gives this potting mix unique properties that really set it apart from its rivals. The black peat sourced from Germany, the white peat from the Baltics and the addition of perlite all work in harmony create a substrate with exquisite water holding and drainage properties

The combination of the amazing physical characteristics of the potting mix, alongside its rich organic nutritional content and beneficial biology afford the indoor grower an easy solution to organic gardening methods. The sort of high quality end product you get from a well grown organic plant is hard to beat, House and Garden help you get there almost effortlessly, every time.


To understand exactly what it is that makes up House and Garden Bat Mix soil, it is easiest to break it down into three ‘separate’ sections. Firstly, its physical characteristics. What it is made of and how that affects its use. Secondly, its nutritional content: what it provides the plant in terms of food. Lastly, its beneficial bacterial content: a well-functioning organic soil cannot be ‘dead’ of life. How exactly do these three things apply when it comes to a well-balanced potting soil like the H&G Bat Mix?


This is all to do with how well the potting mix holds on to water, how well the soil drains, and how much aeration the mix can provide to benefit beneficial biology as well as to support a normally functioning root system. Not enough drainage and your plant may suffer from lack of available oxygen in the roots. Too much drainage and you may suffer with drought stress too often. It is a careful balance that needs to be addressed when creating a peat based potting mix. The three main things that effect the physical characteristics of the H&G Bat Mix soil are the black peat, the white peat and the perlite.

  1. Black peat: Harvested in Germany, black peat must first be frozen and thawed to improve its water holding capabilities and reduce the effect of shrinkage when it dries out.
  2. White peat: Highly aerated peat, having a much higher surface area than that of black peat. Harvested in the Baltics, white peat can retain between 10 to 12 times its weight in water  
  3. Perlite: A soil additive produced from natural volcanic glass. It is highly porous encourage a much more rapid drainage throughout a pot, as well as a higher ratio of available oxygen.

House and Garden have spent years sourcing prime quality peat and perlite, and developing the mix so it offers the finest and most user-friendly qualities you can find from an organic potting soil currently on the hydroponic market. However, it no good having the best physical structure unless you have the best nutrient to go with it!


House and Garden Bat Mix soil contains a carefully blended range of immediately available plant nutrient, as well as more long term, slow-release organic fertilisers to cater for your plants growth throughout its entire life cycle.

It’s immediately available nutrient content is set to between an EC of 1.2 and 1.5, with an out-the-bag NPK ratio of 14-16-18. This means that as you plant your established plants into this potting mix, they will have an immediate reserve of correctly balanced nutrients to get them off to an explosive start. As your plant grows and begins to demand more than the immediately soluble nutrients can provide the slow release nutrient, Guano, begins to come into its own.

Longer-term, slow-release organic fertilisers (like the Guano) are bound with in a carbon complex, stored within the fibrous structure of the peat. To release this nutrient, the bond between the element (e.g. nitrogen) and the carbon must be broken. The plant can (and does) do this all by itself as part of its normal process. It will secrete the necessary acids from the root hairs to break apart carbon compounds and release organically stored nutrient as it needs them.

This process of releasing organically bound nutrients is accelerated far beyond what the root system can do on its own with the addition of beneficial bacteria, fungi and other microbial life. As well as forming beneficial symbioses with the plant these organisms have a life cycle all their own know as ‘The Soil Food Web’. As a rule, the greater the population and diversity of the Soil Food Web, the greater the availability of nutrients to the plant, therefore resulting in a larger and healthier crop.

House and Garden Bat Mix provides the optimum levels of pre-fertilisation with both short and long-term nutrient and a wealth of beneficial bacteria to support a healthy nutrient cycling and ultimately high plant uptake rate.


As with any fibrous substrate that you buy in a bag, make sure you fluff it up when you are filling up your pots. During the bagging process and then throughout transport, the media can become slightly compacted, which is not something that is beneficial for your roots! You want it nice and airy so less energy is needed for overall root development.  Break it apart with your hands as you fill your pots so it becomes light and airy once again.

Do not be tempted to press and compact the House and Garden Bat Mix down as you are filing up the pots. When you are potting up, gently tap and knock the pots so the peat mix uniformly settles, rather than compacting it and ruining its structure. This will ensure maximum amount of air pockets throughout the pot and require less energy for the roots to penetrate through a compacted media. Ideally moisten and warm the substrate 24 hours before using to prime the beneficial bacteria.

House and Garden’s Bat Mix Soil can be used if you are hand watering your plant, in a drip irrigation system or even choose to use AutoPots. It is a highly versatile media, even for a traditional peat based potting mix. If you are in an automated irrigation system, ensure you do not overwater, especially for the first few weeks. Ideally hand water your pots until the root system has been established throughout the entire pot, and they are able to take regular irrigations without the fear of overwatering.

Once you have correctly transplanted your plants into the House and Garden Bat Mix soil, you will only need to water with plain tap water (Depending on your quality of water it may be advisable to use a combination of Reverse Osmosis and tap water, please ask in store for details). It has been pre-fertilised to an EC of 1.2-1.5 so typically for the first week, you will need only water and possibly some rooting stimulants. When you need to begin using fertiliser very much depends on the type of plant you are growing. Some plants are a lot heavier feeding than others, so you may need to use a ‘Grow’ or ‘Bloom’ feed sooner than one that has low nutrient requirements.


House and Garden Bat Mix soil has been pre-limed so the pH level is at the most optimum for growing in soil. Any peat based potting mix must be treated to counter the naturally low pH of peat, which is roughly around 4-4.5. The lime agent used ensures that the pH of the substrate is always around 6.2 so you do not necessarily need to adjust your tap water. The pH buffer of the lime is usually enough to see through the entire crop, though if your tap water is particularly low (or High) then more lime will be used up on each irrigation to neutralise back to 6.2, and your buffer may run out sooner than anticipated.


House and Garden Bat Mix soil contains a medium level of immediately available nutrients, so you will need to begin using fertiliser within a week or so of the first watering. How often to water depends very much on how fast the plant is growing and using its water supply. After you have irrigated your plant pot, feel the weight of the container. Do not water the pot again until it is roughly 40% of the previous weight. This will ensure you do not over water the rot system.

Always refer to the grow guide of the nutrient for dilution rates, but more importantly, respond to your plants needs as it is growing. As a general guideline, a younger plant will not need a high rate of feeding, usually half the recommended dosage on the bottle. As it grows and creates a larger leaf area, begin to raise the concentration up to the maximum dosage. If you are using mineral feeds, monitor your EC and pH daily throughout your grow, and respond to any change in requirements as necessary.

Whether you choose to use a mineral based nutrient or a more organically tailored one is entirely down to your choice. There are of course advantages and disadvantages to both methods, but either approach can be gone for with H&G Bat Mix, it is an incredibly versatile potting mix! Using an organic nutrient may not be as instantly available to the plant, but you may notice an enhance flavour and aroma in your final harvest. On the flip-side, a mineral nutrient will quickly provide any nutrient the plant may be lacking in, but may require more attention during the flushing period so it doesn’t negatively affect the result. The choice is all down to what you want out of the harvest.

House and Garden Bat Mix can also be used as a base peat mix to amend with other organic inputs, as part of a broader ’organic’ approach to growing. Being pre-fertilised to a medium level allows the grower to further customise the soil with amendments to tailor it to your own unique level. As you are starting with an exceptional high quality to start with, you can be confident that you are building on top of a solid foundation, just be careful not to over-do it!


Never compact the soil too much when you are potting up your plants. Try to shake and tap the pots to make sure the coir settles out and levels properly. Compacting the media will reduce the overall availability of oxygen, and result in less than optimal growth.

When potting up, dust the roots of the young plant with a healthy dose of mycorrhizal fungi. Beneficial bacteria products, such as Ecothrive’s Biosys, are ideal for using with this type of substrate and will help establishing plants thrive.

If possible, weigh your pots between irrigations to ensure that you are watering them at the correct times. Overwatering your plants can be more damaging than under-watering.

To measure the EC and pH of your soil, it is better to perform a 1:1.5 extraction rather than just checking the run-off. While the run-off is a good indicator, sometimes you can get misleading results.

This website uses cookies to improve service. By using this site, you agree to this use.

House & Garden Bat Mix Special

House & Garden Bat Mix Special