|Hi Greg, they are fun to breed. And we have 6 trees growing now. With the wasps killing off all the young ones during summer it has allowed the trees to grow and we even have the seed heads on the plants too. They aren't big trees - just slight wispy stems that grow about 2 foot to 4 foot / 60 cm to 80 cm.
Next year I will grow a few in pots so I can bring them inside and photograph them easier. The caterpillars chomp through the leaves and you have to kill the caterpillars if there isn't enough food for them all.
This one is called Sid!!
The Monarchs are Back (34)