You are correct. "Wild rose pollen" pollinating her HTs and other roses will have no altering effects on her roses or we couldn't breed new roses because the pollen put ON the ones used as seed parents would change them. Perhaps you might use the analogy that her father "pollinating" her mother to produce her did not change her mother genetically. Neither will wild pollen change her planted roses. It's the same thing, sexual reproduction where sperm fertilizes eggs, resulting in either infants or seeds.

The possible explanations could be:

1. Her roses have root stock suckers emerging from below their bud unions, which may resemble 'wild roses' to her compared to what she has come to expect from her roses. These might actually be wild roses if her roses are budded on some wild rose used to provide the roots for her plants.

2. Seeds from the "wild roses" around her are blown in, washed in, bird-dropped in to where she has her roses planted and are germinating around her roses, where, probably, the soil is better amended and more water and fertilizer are used, making it more beneficial for them to germinate and grow.

3. If the wild roses are of a type which suckers, sends out under ground runners, they may have been drawn to the area because there is more water and other necessary resources. They could be suckering into her rose beds.

But, I promise, any wild rose pollen applied to her rose bushes will not alter them any further than creating hips, fruit, just as any wild pollen blown or brought to her apple trees will not change her apples to "wild types". Only the seedlings germinated from the resulting seed will be altered by the "wild roses". I hope it helps you explain to her what she's potentially seeing. Kim

I agree with Kim! Good explanation.

Thank you, Karl! Kim

Hi, can I add another question to this thread?

If a virus rose is crossed with a non-virus rose, will the non-virus rose be infected with the virus (i.e RMV) and will the virus be passed onto its offspring?

I'm sorry Jimmy, that one I can't answer. You might want to read the thread about the Best Nursery for virus free plants at the link below to get more information about that question. Kim

Here is a link that might be useful: What's the best nursery free of rose virus...