Moldy Seed Starting
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Zinnia seeds getting a good start in a chicken rotisserie container. (Photo by Charlotte Ekker Wiggins)
“….I have a question. I’m starting seeds in a barbecue container and it’s now growing mold. Will the seeds be ok?” — Sally
Moldy Seed Starting
Hi Sally,
I love repurposing those chicken - and other - containers to grow seeds. Your question inspired me to start my miniature zinnia seeds. We had so much moisture this spring it may be late in the season before I can get zinnia seeds planted outside. Zinnias are a favorite of butterflies and other pollinators.
I’m using these two repurposed containers to grow zinnia seeds. (Photo by Charlotte Ekker Wiggins)
First, did you already have, or did you add, holes in the bottom of the container? That will help keep the water drained so the soil doesn’t become saturated and encourage fungal growth.
Secondly, when you see condensation on the lid, do you remove it? The clear lid should stay on just long enough to get the seeds started. Then you want to take the lid off so the seeds can start getting acclimated to your growing conditions.
Miniature zinnia seeds started 5 days after getting planted. (Photo by Charlotte Ekker Wiggins)
When you are first planting, also use a spray bottle to moisten the soil, you don’t want to get it too wet.
Whenever planting seeds, use a spray bottle to control moisture. (Photo by Charlotte Ekker Wiggins)
I keep the spray bottle nearby and spritz the seeds daily as they are growing.
I also have them in indirect sun until their first true leaves grow. Then I will move them into direct sunlight for a couple of hours every day. Once they are growing, they will get thinned out, then moved outside for a few hours every day until it’s time to plant them in the garden.
Take the clear lid off when you see condensation on it. (Photo by Charlotte Ekker Wiggins)
I would remove your lid and let the soil dry out. A quick spray of water daily should rehydrate the soil and keep the seedlings happy but discourage any further fungus from growing.
Let me know how this works for you!
