Euphorbia, Martin's Spurge, Wood Spurge 'Ascot Rainbow'

Bought 2 of these (one for my Zone 7a sandy garden and one for my sister's Zone 6b clay garden; both Ontario). They were flourishing and...Read More evergreen at the late end of fall but we had a harsh cold winter with unusual amounts of heavy snow and a cold temperamental spring (snow and frosts in the third week of April).

Neither plant seems to have survived.

Beautiful and unusual enough that I will buy again for both gardens and try to overwinter in a dark and dry unheated spot or treat as an annual if I can find cheaply enough (I bought ours for $12 CAD plus tax last spring, but now see a nursery carrying this for $28 CAD pre-tax!).

Too bad because the winter colour is part of the appeal.

I absolutely love this plant but it Is not doing too well.
I bought it from the nursery in June and just repotted it (mid August) ...Read More- I'm trying to grow it as an indoor plant Unfortunately the leaves keep falling off and it is very very leggy. I do see a tiny new one coming out of the soil so that's promise. It's currently sitting in a West-facing window iny San Francisco apartment.
Would love some advice on making this baby happy!

Great foliage plant. I planted in urns last summer in my Ontario garden and then moved it into the garden on the west side of my house fo...Read Morer the winter. It had lots of snow cover. It has come back beautifully and is flowering.
Awesome plant!

This is primarily sold here for use as a container plant, but it can also grow here as a short-lived perennial.

I've had m...Read Morey doubts about the hardiness of E. x martinii in my climate, but this cultivar has done well in deep shade for at least 4 years in Southborough, MA, at the border between USDA zones 5/6. Foliage is semi-evergreen, and the chartreuse variegation is handsome.

Produces frequent reversions to the non-variegated form---cut non-variegated stems off at the base promptly if you don't want them to take over, as they're more vigorous than the variegated form.

Bloom begins in May. The flower bracts are showy and last for months. Cut flowering stems back to the base as the flowers fade. Do not cut new stems back, as they will flower the next year.

Here this plant forms a clump and does not spread. I find occasional seedlings, all of which are purple-leafed and lack the variegation of their parent.

Update May 2014: Last winter, colder than average, killed most of my plants. Euphorbia amygdaloides 'Rubra' ('Purpurea') is definitely hardier.