What's a good ground cover to cover a rock wall in heavy shade in Massachusetts?

Question

At the back of our property we have a 2 foot rock wall, made primary of just big rocks and boulders. Its really cool, however behind it is a thick forest and so due to the trees in our yard as well as the thick woods, it gets very little sun.

I love phlox and rock cress, and think they look awesome as they over flow over rocks and brick. However I doubt either will successfully grow or flower due to the heavy shade.

I live in Massachusetts and while I accept little sun means little chance of bright colors for flowers, I want a creeping plant that can flower occasionally to add some color.

Any thoughts on low shade ground cover/ creeping varieties?

Answer 1

Vinca is a great ground cover vine that flowers, and creeps. Makes for a nice "ivy" type of look...

Ground cover images

More info on the plant here.

Answer 2

Lamium varieties would probably fit the bill - they come in various leaf colours, some striped, some spotted, some yellow or variegated, some almost white, and all flower, mostly lilac flowers but also yellow or white.

The following are ones worth investigating:

Lamium maculatum 'Anne Greenaway', L. 'White Nancy', L. Beacon Silver, L. maculatum 'Brocade', Lamium galeobdolen 'Herman's Pride', L. 'Jade Frost'.

Using ones with different coloured leaves will also add interest to the area - they do pretty well in shade, but would really prefer occasional sun, and they cope very well with drought conditions once established. Generally unfussy about soil conditions and fully hardy.

UPDATE: A comment below mentions Lamiums looking a bit sad in late summer - I'd agree with that, it's usually after they've finished flowering, at which point, it's wise to cut them back, looks better and keeps them bushy, though by no means is this treatment essential. Would be good to have something other than Lamium in the mix, but I can't think of anything else.

Answer 3

Here is another option: Chrysogonum virginianum from an earlier post titled What is this native North American ground cover?

Answer 4

Another possibility is Cymbalaria muralis, aka Ivy-Leaved Toadflax, Kenilworth Ivy, Climbing Sailor, Colisseum Ivy or Devil's Ribbon. Note that this plant can be considered invasive in some areas of the US. Dave's Garden has some good information, including assesments, positive, negative and neutral, from people who have experience with this plant.

I've seen it growing on the retaining wall around our local church/churchyard. (Denmark, zones 6a - 6b) It's a subtle, delicate looking plant, and the contrast with large stones is very pretty.