All plants and trees listed are believed to be safe for use in the aviary [for planting or to use as perches]

You must ensure none of these items have been sprayed with insecticides.
If you get the trees from a known source i.e. [your own garden] you will be aware if they are insecticide free. Otherwise you should scrub them before use. [use a mild bleach solution]
You should be aware that some birds would destroy branches in a matter of hours. My lovebirds do this, which is why I do not have any plants in the aviary at present.

Plants bamboo chickweed dandilion dogwood ferns herbs Ornimental grasses

Trees / Bushes ash apple beech elm fir hawthorn pear box privit larch magnolia palms plum

I have tried various plants and shrubs in the flight but I am afraid that my lovebirds take a delight in destroying them in a matter of hours