How To Grow Plants In Self-Watering Planters

How to grow plants in self-watering containers

Setting up your planter

We recommend using a good quality potting mix such as Tui Pot Power. If you want to save on money, you can add half potting mix and half compost. If you don't have your own compost, you can get No. 8 Potting mix for around $3.50 from most plant stores. 

Tui Pot PowerNumber 8 Compost

If you have worm tea, you can add this to your water reservoir. 

Click here for instructions on how to assemble your self-watering planter

Feeding your plants

Over time your plants will absorb all the nutrients from your potting mix so it's important to replace those nutrients with a good fertilizer.  Well-fed plants are more likely to produce a good harvest, they are more able to resist attack from pests and are less likely to succumb to diseases. 

We recommend feeding your plants every 10 days. If you're looking for an organic option we recommend Tui Organic Seaweed Plant Tonic. Otherwise, a good non-organic option is Yates Thrive Liquid Concentrate All Purpose.

We've found that you can add the Thrive fertilizer into the water reservoir as it dissolves in the water and gets sucked up by the plants but with the Tui you'll need to add this to the top. 

Yates Thrive Liquid Concentrate All Purpose 500mlTUI ORGANIC SEAWEED PLANT TONIC

Watering your plants

You'll need to water your plants every few days. Please note, you never water your plants from the top (unless it's the first time).  Some plants are thirstier than others such as cucumbers, courgettes, tomatoes so it's a good idea to keep an eye on the water reservoir and top up as needed.   

Protecting your plants

Remember we aren't the only ones who love vegetables! Treat pests immediately to avoid damage to your crops. We use Kiwicare Organic Caterpillar Bio Control to treat white butterflies, caterpillars, and all other pests. You can find this at Countdown at a much lower cost than most garden stores. 

Kiwicare Organic Caterpillar Bio Control

Other Tips 

  • Plant the same type of vegetable in a planter, or if you want to mix it up make sure you plant vegetables that need the same amount of water ie leeks and spring onion.
  • Don't over-crowd your planter, this will create an environment for pests and diseases to thrive in! 
  • We don't recommend planting from seeds in our planters, always use seedlings.