Raising Emperor moths (2026 edition)

Hey friends! Welcome to my third Butterfly tale of 2026!!

Do you remember last year I wrote about my experience over wintering 3 Emperor moth cocoons I found in the garden? They emerged mated like crazy and flew away, well this year I’m continuing that story…

So my three Emperors from last year were a richly coloured male and two gigantic grey winged females, I really fell in love with them and was thrilled that they survived the winter (I found them on a plant that was damaged during a winter storm) I created them an enclosure with different heathers and a giant meadow sweet plant and they were obviously quite happy as the girls laid like 250-300 eggs!

Sadly Emperor moth eggs need really specific humidity and temperatures to develop and although I was hopeful only a single egg hatched. I was gutted to be honest I kinda thought I was going to be releasing an army of them.

Just to point out my butterfly raising disclaimer, I’m only rescuing the ones I can identify as eggs as some caterpillars can be tricky to raise or are protected species. If I don’t trust that I can look after them properly and give them the right food plant/proper environment then my plan is always to just leave them alone.

So my very precious caterpillar began to eat her way around the enclosure. These moths have fascinating caterpillar, each time the caterpillar grows or ‘moults’ a stage in life where they rest for a few days and shed their skin causes significant changes in their appearance.

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Raising Emperor moths

Hey friends! Welcome to my first Butterfly tale of 2025!!

Although to be honest its actually about moths, Emperor moths to be precise.

Lets rewind a few months…late last year I was able to watch a few Emperor moth caterpillars form their chrysalises in my garden, unfortunately the plant they were attached to became damaged in one of those really nasty storms we had and I didn’t want the little guys to end up drowning on the floor of my wildspace so I rescued them!

They’ve been living in a little netted pod in my butterfly house all winter and emerged at the beginning of April! It was so damn exciting I genuinely thought that they’d probably died in the storm, but I ended up with a gorgeous male and two gigantic females. I grow two of their favourite caterpillar food plants so it was super easy to give them both a pot of heather and meadowsweet.

The three of them all emerged within about half an hour of each other and by the evening the male was mating with one of the females and the next morning she was laying eggs! 

Continue reading “Raising Emperor moths”