Generally, that is how they are. Almost all perennial pea flowers bloom with the same bright purplish pink color of the bloom in the picture below. That is, of course, before their pods develop, but you get the point. We sort of know what to expect from them.
As I mentioned in the ‘Six on Saturday‘ post last week, from which the picture below originated, variants like the pink bloom in the picture above are sometimes observed. The rare clear white flowers are my favorites. There might be fluffier double flowers too; although, in my opinion, the single flowers are prettier and look more like pea flowers should look.
I also mentioned last week that, although perennial pea has a sneaky way of growing where it is not wanted, it typically does not grow reliably from seed sown intentionally where it might actually be desirable. I have tried. The seed just did not cooperate. I managed to get a few to grow, but only because I put out a few hundred to compensate for the expected minimal rate of germination.
Because I like the white so much, I took seed from a vine that had bloomed with single white flowers. I figured that they would be more likely to produce a few white blooming progeny. I would have been satisfied if only a single vine in a group of several bloomed white, but got only a few vines that all bloomed with the typical bright purplish pink. They were pretty nonetheless, but were ironically removed when the site was redeveloped.
I also collected seed from vines that bloomed with the common single bright purplish pink flowers, just in case the viability rate of their seed might somehow be better. They were sown into a different situation, so even if I happened to know how many of the seed that were sown germinated and grew, it would not be an accurate comparison. Regardless, I was no more impressed with the result. Perennial pea is best appreciated as weed.
Tony Tomeo 
I germinate pea seeds in a cupboard on a plate between layers of damp kitchen paper, then plant the ones that put out a root. The type you mention might be more tricky but the eating type will sprout in about a week.
LikeLiked by 2 people
These get sown by autumn. They can get sown as soon as they fall in late summer. They won’t do anything anyway, until they have been out in the weather through a cool and rainy winter. That might be part of the problem. They may not get enough chill to distinguish winter from spring, so many not germinate.
LikeLike
I mean that many may fail to germinate because they do not get adequate chill.
LikeLike
There are perennial peas growing in one location here and nowhere else. They have been here for MANY years. They are various shades of pink and white.
LikeLiked by 1 person
It is probably good that they stay confined. I happen to like them where they spread along the roadside, but I am sort of concerned about how they affect the ecosystem, or how they would affect the ecosystem if they become more prolific. They have not been here as long as they have in other regions.
LikeLiked by 1 person
As you know I planted some years ago seeds. Today our area is full of flowering sweet pea, they are everywhere (and all because of me). The colour is getting more intensive as the years go by and are now a very deep pink. I once did have a white one in my garden, but this has disappeared now. I still like them, but when they grow wild they have no real support and just climb on other plants, or make a good ground coverage.We seem to have no problem with germinating seeds, they are germinating everywhere.
LikeLiked by 1 person
That is about how ours are. They grow where they want to, and have no problem doing so. They just do not cooperate when I want to plant them someplace specific. Their seed has a minimal rate of viability. Even though they grow everywhere they want to, they only do so by tossing countless seed. For every seed that germinates, there may be a hundred that didn’t. They really are pretty right now. I wanted to leave those that I needed to remove from the landscapes to bloom before removing them, but they just got too overwhelming first.
LikeLiked by 1 person
Reblogged this on Tony Tomeo and commented:
Since posting this three years ago, I dug and canned two perennial pea that bloom white. I split one into three copies, and gave the other away. It was easy. I suppose I could do it again, and perhaps can one that blooms lighter pink, like in the upper picture.
LikeLike