Questions People Ask

Every environment is different and every home offers several different micro-environments to choose from. The following are simply guidelines.

Stay in tune with your plants and they will tell you when they are thirsty.


Q. How much water do you use when watering your GroPro?

A. On average we fill a watering can with around 5 or 6 liters per watering BUT please bear in mind that at least 2-3 of those liters will be recycled water which has already passed through the system and which you are now re-using.

You then add fresh water to your watering can to bring it up to 5 or 6 liters. After this watering has moved through the GroPro once more, you will get another 2-3 liters to contribute to the next.

By recycling your water in this fashion the GroPro allows you to water 28 plants with just 4-5 liters!

Q. How often do you water your GroPro?

A. Upon initial setup you should give your GroPro a proper watering once every 2 days. On top of this please be sure to give the pockets a spray both in the mornings and the evenings to ensure the tiny roots do remain moist while the plants are establishing.

Do this for 1 week.

Once your GroPro has been growing for 2 weeks you can move to a full watering every 3 days. At 3 weeks you can move to watering every 4 days.


Q. Can I only plant veggies?

A. No! You could have a beautiful floral GroPro as your worm farm instead. Be creative!

Q. Which herbs and veggies can I plant?

A. Half the fun of having a GroPro is experimentation. See what works for you and your micro-environment! However we have had great success with the following...:

Spinach, parsley, coriander, turnips, tomatoes, sweet peas, peas greenfeast, celery, strawberries, lettuce, pansies, basil, dark purple basil, onion, spring onion, green, yellow and red peppers, chives, thyme, oregano, kale, nasturtium, aubergine or eggplant, gooseberries, blueberries, dianthus, beetroot, Chinese cabbage, tah tsai, pak choi, dill, fennel, Mizuna - Japanese mustard, giant mustard, catnip, beans, sage, stevia and whatever flowers may take your fancy.

Q. How often do I replant?

As often or as little as you want.


Q. If I decide to take my GroPro down how do I preserve my worms?

If you would like to take down your GroPro for whatever reason - maybe to remove roots for a fresh planting perhaps - stop watering and dry it out for 2 weeks but continue to feed once every few days as usual. This ensures moisture remains within the inner cylinder as the rest of the GroPro dries out.

When you finally take it down 99% of your worms will be found within the inner cylinder.



Q. I have heard I cannot feed wrigglers onions or citrus?

A. Acidic scraps such as onions, pineapples, tomatoes, lemons and oranges are to be avoided. Too much acidity gives them heart burn!


Q. How often do I feed them and how much? Can I fill the inner cylinder with green scraps and walk away?

A. Please don't!

We give them a small handful of waste every 2-3 days.

As your worms multiply they will be able to consume more but too much waste will just rot and everyone will be unhappy with the smell - both you and the worms!

You should never aim to fill your inner cylinder entirely.

Q. Do I ever need to worry about an over population of worms? Can too many worms harm my plants?

A. No you don't. As worm farms go, the GroPro is a massive one and can accommodate thousands of worms. No number of worms can bring harm to your produce.

More worms simply means they can consume more of your waste to contribute more nutrients to the GroPro ecosystem.

Q. Where are Red Wrigglers from and will they harm our indigenous earth worm population?

A. Eisenia Fetida, or the Red Wriggler worm, is indigenous to Europe.

However, they have been introduced to every other continent, save Antarctica, because of their ability to go through organic waste so efficiently. They are friendly little guys and don't go in for eating other worms.

Worm Cylinder


Q. My inner cylinder has filled up! It's all been worked through by the wrigglers! Will the GroPro still work?

A. Remain calm! Your GroPro will still work and the level will gradually recede - the nutrients from a full cylinder will have been plenty!



Q. What about pests?

A. The GroPro places your plants out of the reach of snails but there are various other pests out there with a little more ingenuity. Caterpillars come air-born and aphids materialize out of thin air it seems!

Worm tea acts as a natural pesticide and leaves love having some (diluted or you will burn them!) sprayed on to their leaves. We use a small pump action, pressurized spray bottle from the local supermarket. 

Stay vigilant and pick off caterpillars and if you have to a few drops of dish washing liquid mixed with water in your spray bottle will sort out aphids.


Q. The recycled water makes my GroPro look dirty. How do I avoid this?

A. Simply give your GroPro the lightest shower after you've watered with fresh water and this will keep your GroPro clean and looking spiffy.

Got another idea or question? Why not ask us on facebook