I have grown them twice. I can't remember any "issues". Possibly spidermites the second time.

The house wrens love to nest in them.
Be sure to keep the entrance hole small, silver dollar size or a tad smaller, or sparrows will move in.
I did paint some for fun, but I have several that have never been cut into and they are still intact 2 years later.
The cutiest one I painted was to make the hole the center of a sunflower.

Do not hang one near a porch ceiling fan. We had one fly into the fan at night. It was so sad to hear the mate calling for the dead one.
This spring I hung one in a crepe myrtle near the patio and we watched them hatch and fly away.

Kathy

This is last year's tear drop type.

{{gwi:620676}}

thank you both! My little babies are a little bigger today.
plantmaven: what did you feed yours it looks HUGE! Did you fertilize????

I am really excited by these. I read somewhere to pinch back the side vines for more female flowers. I can't say I've done this intentionally, but since I sent mine up a tower then made a canopy of coated wire on top of trellises, I kinda lost some vines here and there.

I look out where there was nothing 2 months ago and It is an awning of green with little flower "lights" makes me feel like I can grow something!