Bobthegardener, so if I understood you correctly. A cultivar could come from a hybrid that has not yet been discovered? Hence why a Geum could be called Mrs Bradshaw?
Hybrids are the offspring of 2 different species. A cultivar does not occur naturally, but is bred in "captivity ", they are sterile.
I thought hybrids were the offspring of two genus? Isn’t a species of Lavender, Angustifolia? If so if two Lavendula Angustifolias were crossed wouldn’t the plant be the same?
Sorry if it sounds like I’m saying you’re wrong (I’m not at all!) I’m just trying to get my head round it haha
2 different species often make hybrids. 2 different genera, rarely. So two different species of lavender are likely to hybridise. But the lavender is unlikely to hybridise with the Salvia which is a different genus.
Yes, that's how new cultivars arise. I have about 20 heucheras I've grown from seed, all of which are unique. If I decided to name one and propagate new plants from it, then it would become a 'named cultivar'.
This may also help:
"In short, a cultivar is a plant that is produced and maintained by horticulturists but does not produce true-to-seed; whereas, a variety is a group of plants within a species that has one or more distinguishing characteristics and usually produces true-to-seed."
RHS level 2 definition of a cultivar is simply 'a man made variety'
Variety – a naturally occurring distinct sub- population within a species that will either come true from seed or can be reproduced vegetatively (for example by cuttings).
RHS level 2 definition of a cultivar is simply 'a man made variety'
Variety – a naturally occurring distinct sub- population within a species that will either come true from seed or can be reproduced vegetatively (for example by cuttings).
Cultivar – a man made variety.
The study material is trying to explain hybrids and cultivars but I thought I’d try and get an easier explanation.
Hybrids are the offspring of 2 different species. A cultivar does not occur naturally, but is bred in "captivity ", they are sterile.
I thought hybrids were the offspring of two genus? Isn’t a species of Lavender, Angustifolia? If so if two Lavendula Angustifolias were crossed wouldn’t the plant be the same?
Sorry if it sounds like I’m saying you’re wrong (I’m not at all!) I’m just trying to get my head round it haha
2 different species often make hybrids. 2 different genera, rarely. So two different species of lavender are likely to hybridise. But the lavender is unlikely to hybridise with the Salvia which is a different genus.
Aren’t two Lavendula Angustifolia exactly the same though? Sorry, just trying to understand this.
RHS level 2 definition of a cultivar is simply 'a man made variety'
Variety – a naturally occurring distinct sub- population within a species that will either come true from seed or can be reproduced vegetatively (for example by cuttings).
Cultivar – a man made variety.
The study material is trying to explain hybrids and cultivars but I thought I’d try and get an easier explanation.
The trouble is nothing people have posted is 'wrong' it's just about 'context', so it might be more confusing!
Cultivar is mostly widely used as a term to describe any group of plants that was created by people by selecting traits, so it didn't occur naturally in wild, it is the result of human intervention, man made. Could come true from seed and can be reproduced vegetatively.
Hybrid is a cross between two distinct species and usually happens at species level (so they belong to the same genus)
Lavandula angustifolia is one species of lavender; to make a hybrid you need two DIFFERENT species to cross with each other. If you cross-pollinated two Lavandula angustifolia plants you'd get more Lavandula angustifolia, not a hybrid. But if you cross-pollinate Lavandula angustifolia with Lavandula latifolia you produce a different plant from either of the parents, known as Lavandula x intermedia.
Since 2019 I've lived in east Clare, in the west of Ireland.
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In the sticks near Peterborough
RHS level 2 definition of a cultivar is simply 'a man made variety'
Variety – a naturally occurring distinct sub- population within a species that will either come true from seed or can be reproduced vegetatively (for example by cuttings).
Cultivar – a man made variety.
However if L.x and L.y cross, you might get L.z
When you don't even know who's in the team
S.Yorkshire/Derbyshire border
Cultivar is mostly widely used as a term to describe any group of plants that was created by people by selecting traits, so it didn't occur naturally in wild, it is the result of human intervention, man made. Could come true from seed and can be reproduced vegetatively.
Hybrid is a cross between two distinct species and usually happens at species level (so they belong to the same genus)
Apologies if it felt that I was asking the same thing over and over, I love gardening but decided to study it. What have I done 🤣🙄