Can't find anywhere that says how deep to plant them, just how far apart they should be. Thanks.
In case you want to find out more about them, here's an article on Virginia bluebells: https://www.gardeningknowhow.com/ornamental/bulbs/bluebell/virginia-bluebell-flowers.htm
Plant them with their pointy end upward, about 2" below the surface.
I have bluebells and periwinkle (vinca) planted together. There seem to be less bluebells each season. Can the periwinkle crowd them out? Thanks for your help.
Unfortunately, some periwinkle (vinca) varieties can choke out or take over other plantings in the garden. You may want to salvage the remaining bluebell plants and move them elsewhere.
Do Virginia bluebell plants stay green after they are done blooming? Can I plant the bulbs in April? Are these like a ground cover in the summer?
The preferred planting time would be after the hot summer months and fall.
Virginia Bluebells are very long blooming plants and naturalize easily, making a good ground cover effect.
Leaves will remain green after blooming.
Here are a few links with more information.
https://www.gardeningknowhow.com/ornamental/bulbs/bluebell/virginia-bluebell-flowers.htm
https://www.gardeningknowhow.com/ornamental/bulbs/bluebell/grow-wood-hyacinth-bluebells.htm
How does one clear Virginia bluebells when they are done blooming? I have a ton of bluebells in my garden and need to know if I can cut them off to help the astilbe grow now.
You should not cut or trim back the Bluebells.
Here is a couple of great links.
https://www.gardeningknowhow.com/ornamental/bulbs/bluebell/virginia-bluebell-flowers.htm
https://www.gardeningknowhow.com/ornamental/bulbs/bluebell/grow-wood-hyacinth-bluebells.htm
I have roots (or tubers) and do not know how deep to plant them.
Plant them about 2-6" deep. This article should help:
http://www.gardeningknowhow.com/ornamental/bulbs/bluebell/virginia-bluebell-flowers.htm