Dahlia 'Gelber Vulcan'
Cheery yellow cactus blooms
Grown by Jack
Hereford
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Dahlia 'Gelber Vulcan'
A classic dahlia with large, semi-double flowers in a bright yellow colour. The petals are smooth and rounded, creating a beautiful and elegant bloom. Blooms from June to September. Ideal for borders, containers, or cut flowers. Thrives in full sun and well-drained soil.
What to expect
Supplied as
Eventual height
Eventual spread
Flower colour
Will this grow in my garden?
Can I grow this in a pot?
Yes, Dahlia 'Gelber Vulcan' grows beautifully in 40 cm pots, enjoying sunny positions and temperatures up to 28°C.
How big does it get?
Dahlia 'Gelber Vulcan' typically reaches a mature height of 100 cm and a spread of 60 cm.
How much sunlight does this need?
Dahlia 'Gelber Vulcan' requires full sun to flourish.
What kind of soil does this plant prefer?
Dahlia 'Gelber Vulcan' prefers deep, fertile, moist but well-drained soil enriched with organic matter.
How much watering does this plant need?
Water Dahlia 'Gelber Vulcan' regularly to keep the soil evenly moist, providing about 2.5 cm of water weekly during the growing season, and slightly more when temperatures surpass 25°C.
Will this plant need pruning?
No strict pruning is required, but Dahlia 'Gelber Vulcan' generally benefits from deadheading faded flowers to encourage further blooming and cutting back dead foliage in late autumn or early spring.
How hardy is this plant?
Dahlia 'Gelber Vulcan' holds an RHS rating of H3, withstanding temperatures down to -5°C, meaning it is hardy in coastal and mild parts of the UK but requires winter protection or lifting elsewhere.
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Hereford
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Perennials born in Herefordshire, blooming in your garden
Our perennials start life in the rolling Herefordshire hills, where Jack and his team trial over 250 new varieties each year to bring you the best performing and most sustainable plants in the UK. With over forty years of excellence, it’s no surprise that they’ve won the HTA Plant Grower of the Year award two years running.
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