**3.** Then comes six to nine inches (15 to 23 cm) of compost-rich soilless mix, which is lighter and affords better drainage than ordinary garden soil. This must be wetted down thoroughly, but not waterlogged, after which it is time to plant.
Gardening Life
Be the first to comment on "How to create a green rooftop space"
Editor's note: This is a moderated forum, so your comments won't appear until approved by the moderator. Please help us foster a friendly environment by keeping your posts civil and on-point. We reserve the right to delete comments that include foul language, personal attacks on others, sales solicitations or any other inappropriate content. Posted comments reflect the opinions of the poster, not of gardeninglife.ca. Read our privacy policy for more information.