I have grown some Dahlias from seed and they are about 4 inches high, but they now have flowers on them,surely they shouldnt flower until they are much taller.
Has anyone else experienced this and what could be the cause ?
Modern plants are bred to flower as soon, and as prolifically, as possible, so this is not unusual - it just shows that you've been growing them in good conditions. Pinch off the flowers until they're closer to the size at which you want them to flower.
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what type of daliahs are they?
From seed they tend to be annuals, so will not get to the size of tubor grown daliahs
Just keep removing the flower heads and they should flower right through to first frosts
Modern plants are bred to flower as soon, and as prolifically, as possible, so this is not unusual - it just shows that you've been growing them in good conditions. Pinch off the flowers until they're closer to the size at which you want them to flower.
Thanks for your help, good to know they will be alright.