Lily and Iris Rock Garden

janes_gardenJuly 28, 2009

I would like to create a rock garden of lilies and irises. The garden size is approximately 10 ft x 10 ft. I would like to plant iris and lily bulbs, leaving a large enough hole for future growth, and then sheet mulch (using cardboard) the unplanted areas and then cover the sheet mulch with rocks. Since irises and lilies usually spread, my guess is that the sheet mulch and weight of the rocks would prevent spreading. Would this harm any of my original irises and lilies? I haven't started the project yet. Thank you. Jane

Thank you for reporting this comment. Undo
Pudge 2b

The cardboard will eventually decompose which will leave you with rocks on top of soil.

Iris spread quickly, you will need to lift and divide it every year to keep growth in check.

    Bookmark   July 29, 2009 at 5:34AM
Thank you for reporting this comment. Undo
leftwood(z4a MN)

Obviously, your "rock garden" is not an alpine garden, but my concern is the soil you have, as most people (not alpine gardeners) use rock mulches over poor soils. Lilies especially need good rich and well draining soil. If your soil is sand or clay, lilies will not thrive.

    Bookmark   August 22, 2009 at 1:56AM
Sign Up to comment
More Discussions
Does Cactus Soil Work Well With Alpines?
I have a bag of cactus soil and I wanted to use it...
Sempervivium coming out of winter dormancy
I'm in Vermont and greens signs of spring are only...
where to buy this dianthus
Hello! I lost all of these mini dianthus plants over...
using a cold frame
Hi,just getting into alpines,not bothered about a greenhouse...
winter edelweiss help...
Last spring I bought four edelweiss plants and they...
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™