Hi
I'm new here and still new enough to permaculture that I am overwhelmed, but i want to plant some trees this spring. I wonder if someone here would have time to answer my question. Thanks in advance!
Does anything match this description or can you direct me to a good plant database to give this sort of info?
ISO:
Tree or shrub
Fast growing
To about 15 ft high
Zone 5, Midwest
Site was old garage/ driveway (about 1 ft of gravel just below couple inches thick top soil, low nutrient, hard for roots to penetrate, but back to black loam under the old driveway) so needs to break through rocky soil or tolerate having deep roots trapped under the old driveway.
Full sun
Nitrogen fixing or soil building
No thorns (my kids will play around it)
Optional:
Edible, (do I want to eat something grown on an old building site?)
Insect / bird / wildlife attracting, (would love tht, but I'll take anything that will grow there)
Prefer it to not be poisonous, but the kids are old enough to know what not to eat.
I was checking out some suggestions on a list here:
shepherdia,
caragana,
elaeagnus,
baptisia,
Hippophae,
cercis,
alnus,
but wasn't sure which ones would really be able to grow on (or under) that old driveway.
Thank you for any feedback you are willing to give me.