I'm in Zone 6. We moved into the house just over two years ago, and there
was a lilac in the garden. It looks very young. It's really only one stem
going upwards with some offshooting branches. It is now about 6 feet tall,
but has not flowered as of yet. Do lilacs only flower after a certain age?

Also, does anyone know how I can identify the species of lilac?

Happy gardening

Evan Wood
Toronto On