Streptocarpus plant fed from below with tgrowbags

Steptocarpus Crystal Ice fed from below with a Tgrowbag. This variety of Steptocarpus (Cape Primrose) is an ideal plant to grow, as it is compact, free flowering and has the genetics for year round flowering if given the right conditions.

Watering plants from below with Tgrowbags.


Plant sitting in saucer or trays can sometimes be watered from below. This is often for convenience or there can be some good cultural reasons for doing so.

  • The plant has hair or furry leaves which will trap moisture and possible lead to rotting. eg Saintpaulia, Streptocarpus, Gesneriads
  • Some plants require large volumes of water or grow best when the compost is kept moist. eg Spathyphyllum, Aroids, ferns
  • Plants that are subject to rotting as they come from dry arid conditions eg Cacti and succulents
  • Plants that like high levels of humidity eg. many orchids
  • Plants watered from below for technical or scientific reasons echoing the flooded bench process of commercial horticulture
  • Plants watered from below can uptake more nutrients from a constant water supply
  • Commercial growers often like this technique as it allows a plant to be thoroughly watered when the pot fills with roots and the potting mix expands to accommodate the plant.
  • The problems of water splash disturbing the surface of the compost is eliminated


However do remember the golden rule that plants should not be left standing in water for excessive lengths of time. If plants remain in water for more than perhaps 60 minutes there is a risk that root rot will result. With rotting roots the plant will die. Either drain your water resevoir or apply water at a reduced volume so all of it is sucked up by the plant roots.


Tgrowbags N.P.K. 17-3-9 + organic growth regulators.


Rate of use: Use x1 Tgrowbag / 12cms. (500ml. volume) pot.

If your plants are filling the pot there sometimes is no room for watering from above or space for a Tgrowbag. Watering from below easily solves this problem

Each feeding bag contains food for your plants. Place a Tgrowbag into the saucer so that the water easily flows around the pot, leave for 6-8 weeks. With each watering, nutrients will be released which can be easily taken up by the plant through the flower pot holes or drainage system. The Tgrowbag can be rolled into a tube if space is restricted in the saucer. Allow to become wet and dry over time.

You will notice that water in the saucer becomes tannin or 'Tea coloured' and this indicates visible nutrients are being dissolved with each watering.

When watering smaller pots (less thank 12cms) adopt a feeding regime of feeding for a shorter length of time.

Tgrowbags can easily be moved between drainage saucers to feed more plants!

For large pots or trays of plants, use additional Tgrowbags at a pro rata rate.

After 6-8 weeks according to the decomposition rates of your Tgrowbags, the bags can be broken open and the contents either sprinkled onto the surface of the compost or re-distributed to other plants. There is evidence that there still will be a nutrient supply in the old Triplantanol mix which will carry on feeding your plants for a number of months, according to the rate of decomposition.

As Tgrowbags have a high organic content, so during their breakdown there is a release of sugars and nitrogen. This provides a food for soil fungus and bacteria. Sometimes you can see these colonies on the surface of the Tgrowbags. This shows that the nutrients are being released and it will not harm your plants. It is a natural breakdown process and not a sign of plant disease or plant pathogens. With time the colonies will die and so will not be noticeable.