It’s the mould melodrama all over again! Our Woolworths Discovery Garden collection is almost complete and there are even a few teeny green shoots sprouting from the soil.

BUT…along with some signs of life on the inside of the pot, there are also signs of life on the outside of the cardboard pot. Yes, mould is infiltrating our mini garden and it looks like it’s winning.

During the last season of Discovery Garden we had the exact same issue. My hubbie is mould-phobic so as soon as he saw traces of the spores, we had no choice but toss the whole shebang out. So sad.

The Mould Is Back!

This time, I’ve been on alert and it’s with a heavy heart that I can report that the mould is back. I tried to wipe away the mould with a tissue, as Woolworths suggests, but it wasn’t budging. So it looks like the days of our Discovery Garden are numbered.

But it seems we are definitely not the only ones reporting the mould mischief. There are many other keen gardeners who are bemoaning the mouldy problem, reporting that white patches are appearing on the soil as well as on the pot itself.

“Yep mine are in the tray and they have all got mould less than a week after planting,” said one disgruntled gardener.

Woolworths Discovery Garden Mould Main

What Is Causing This Pesky Mould?

More experienced gardeners are suggesting that the cause of this may be that we are adding too much water to the soil, making the soil too mushy.

Others are convinced that the green tray restricts airflow to the seedlings and could be the cause of the mould.
Gardeners should perhaps place the soil on an open dish instead.

“Incorrect watering/insufficient sunlight/insufficient airflow = mould,” said one commenter.

“It’s normal, just repot in a well drained pot and give more sunlight,” suggested one.

“They need sunlight and to be watered, but not drowned. If they’re kept in a darker area and watered they’ll grow mold of course,” said another.

“Only do it enough so the dirt is moist, not enough to soak the whole thing. Keep it in a well ventilated area. This will be an issue no matter where you got them from. Not woolies fault.”

“Mould spores are in the air. You’ll get this if moisten cardboard. We didn’t bother with the cardboard for most of ours, and got some very healthy plants in our veggie patch! When you do any gardening, you’re dealing with an ecosystem – healthy soil is alive! Just wash your hands after handling plants and associated materials, and you will be fine.”

Mouldy Debate

This whole issue of mould has ignited some debate on social media as some gardeners maintain that people are making a mountain out of a molehill and should just ignore the fungi growth and that the mould can actually be beneficial for the plant’s growth.

“Gosh folks! They’re a FREE give away! Don’t like them? Don’t take them! Don’t like the outcomes, throw them away,” said one.

Are you having a mould issue on your Discovery Garden? Tell us in the comments below.

Photo credits: Facebook

  • Sunlight and lots of outdoor time helps keep the mould away, overwatering also is a cause from it.


  • We give ours to daycare, they seem to be holding up ok so far!


  • All mine went mouldy. I purposely started watering them less to see if it made any changes.
    It did.
    The mould slowly started going away but the sprouts died.
    You can’t win with these stupid things we cant help but collect.
    I think I might just go back to my bunnings seeds.


  • Some of mine have mould, I just think it’s a given with the wet cardboard, hoping to get some good little plants out of them. But either way they are FREE


  • Yep, a mould garden this year for us again. Whoops


  • I’m not a fan of the seedling offer, might be a good idea, but not for me.


  • I recently discovered the mould is a good thing, it means it’s doing what it’s spose to be doing

    • These pots are designed to be planted along with seedlings into a larger pot or garden bed. I’ve seen no mould issue when you plant them in the garden.


  • Doesn’t worry me – if you are taking care of them they will be out in the garden before it is a big problem. I think the bigger concern is accidentally having one go in the washing machine! eeeek dirt, fluff and pot through everything


  • Yes we got little mould patches, they are now all replanted but the sprouts aver VERY small & VERY week I don’t think they will actually grow to anything decent they look too little and seeds were not enough.


  • I never had any problem with them last time so I’m sure they’ll be okay. My son actually plants them as soon as he gets them so that’s probably why we never notice any mould. Don’t pick mine up till tomorrow as we can only shop once a month. Hope they don’t run out before I get there.


  • I love the discovery garden. If they are going mouldy, they just need sunlight!


  • I’ve had to put our little pots in the garage near a window until I can re-pot them.


  • We kept our outside.


  • I kept them out side under a tree.Still no mould issue.


  • WOW! That does sound a little problematic. I’m not doing this promotion, but this seems to be a relevant issue.


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