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Tomatoes in greenhouse

in Fruit & veg
I apologise in advance if this is this an ignorant question.
If I grow two different varieties of tomatoes in my (un)heated greenhouse, will they cross pollinate therefore not necessarily come true to type? I grew a variety of beef tomato (Gourmandia) together with my usual Gardeners Delight. I certainly had some larger Gardeners Delight than usual, although no smaller Gourmandia ones.
If I grow two different varieties of tomatoes in my (un)heated greenhouse, will they cross pollinate therefore not necessarily come true to type? I grew a variety of beef tomato (Gourmandia) together with my usual Gardeners Delight. I certainly had some larger Gardeners Delight than usual, although no smaller Gourmandia ones.
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Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
@Collareddove … You don’t know what you don’t know … and, unless you ask, you remain ignorant … now that really would be foolish wouldn’t it? 😝
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
A lot of people on the forum have mentioned it over the last few years. I don't know the reason, but you may be able to find it by using the search facility.
I live in west central Scotland - not where that photo is...