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About Cool Evening Dahlia Tubers
- Variety: Cool Evening
- Type: Decorative
- Colour: Vivid pink and yellow bicolour
- Flower size: 15cm across
- Height: 100cm
- Spread: 60cm
- Flowering: July to November
- Cutting: Yes
- RHS AGM: No
- Sold as: Single tubers, hand-graded, Dutch first-class quality
- Plant outdoors: March to July, when soil reaches 15°C (typically May in most of the UK)
- Delivered: From March. Collection from Castle Cary also available
Cool Evening: Vivid Pink and Yellow in a Single Bloom
Cool Evening is a decorative dahlia with a striking colour split: vivid pink petals with warm yellow at the centre. The combination is bold and cheerful, the kind of flower that catches the eye from across a garden. At 15cm across, the blooms are a good practical size for borders and cutting.
At 100cm with a 60cm spread, it's a manageable mid-border plant that flowers from July to November. Stakes at planting time are sensible insurance.
Companions for Cool Evening
The vivid pink-and-yellow works alongside other bold colours. Plant with Golden Sceptre (yellow ball, 90cm) to pick up the yellow tones. Pooh (red and yellow collarette, 90cm) shares the same cheerful energy. For contrast, the deep maroon of Cornel anchors the scheme.
Why buy from Ashridge?
Our dahlia tubers are Dutch first-class quality, imported direct and hand-graded by us. We reject undersized tubers so you get a clump with viable eyes, ready to grow. Delivered by next-day courier from March, with our one-year plant guarantee, Which? Best Plant Supplier, and real people on the phone in Somerset. Browse our full decorative dahlia range or the complete dahlia collection.
Frequently Asked Questions
Will Cool Evening grow in a pot?
At 100cm it's borderline. A large pot with staking will work. For a colourful compact dahlia for pots, the Gallery Pablo (yellow with peach tips, 50cm) is a better fit. Our container guide has more.
Is Cool Evening good for cutting?
The strong stems and 15cm flowers make it a decent cutter. The vivid colour makes each stem a talking point. Cut only fully open blooms. Full growing advice in our dahlia growing guide.


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