I have a raised bed that I have continued to add Top Soil, Organic Humus, Organic Manure, It's very hard to find info on What kind of soil is great for Vinca's. I have done soil testing and the soil isn't that bad. But still need soil recipe.
This is popular partly because it is willing and easy. The only common problem I have seen is a dieback, which I think it picks up in garden centers from splashing soil and being placed in damp display areas, such as under dripping benches. Ordinary shaded, dryish sites here suit it too well, as Vinca minor forms large patches in local woods and undeveloped lots, as do English and Irish ivies.
Ron I had Vinca last year in a round flower bed shadowing a sewer pipe raised out of the ground, One of the garners in my area told me to clip the vinca's at the ground, and they would come this spring. Well we did this and they have come back more beautiful than last year., but my new plants are not making it, when planting I added a little of miricle grow, and root stimulator, which usually makes them jump. I live in the south. Could the soil temp play a factor and be too cool even in this middle of april.
Hi Kajun Vinca, Since the ones you planted last year are doing great, don't expect the ones you just planted to do the same. It takes time for them to establish their roots. There's a saying with perennials: "The first year they sleep, the second year they creep and the third year they leap." Careful not to overfertilize or you risk burning them. http://hcs.osu.edu/pocketgardener/source/description/vi_minor.html Newt
