Dahlia 'Hartenaas'
Orders placed before 1 March 2025
You can expect your order in February/March 2025
Orders placed 1 March - 15 April 2025
You can expect your order in March/April 2025
Orders placed 16 April - 15 May 2025
You can expect your order within 10 business days
UK orders over £50
Free shipping
UK orders under £50
£4.99
Northern Ireland orders under £50
£5.99
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Description
Let the cheery blooms of Dahlia 'Hartenaas' (Dutch for ace of hearts) light up your summer garden—you just can’t help but smile when these pretty collarettes start to appear. It's like the sweetest summer captured in a single flower, with petals and collar in a joyful, sugary shade of pink. Pollinators will make a bee-line to the open flowers with exposed, nectar-rich, sunny yellow button centre—perfect if your gardening with wildlife in mind.
Like all dahlias, Dahlia 'Hartenaas' flowers repeatedly all summer long. Regular deadheading keeps it looking fresh and tidy, and encourages more blooms to grow. Such a generously-long flowering season is a real treat—you can rely on dahlias for a colour which lasts from summer right into autumn. Being a smaller variety, this dahlia is perfect showcased individually in a large container on your patio or catching the eye at the front of the border. Either way, 'Hartenaas' is sure to make you smile!
Key features
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Good for cutting
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Comes back every year
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Attractive to wildlife
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Loved by pollinators
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Thrives well in full sun
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Packed in paper bags
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Low maintenance
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May need winter cover
Specs & details
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Botanical name
Dahlia 'Hartenaas'
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Flower colour
Pink, white
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Tuber size
1
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Established height
70cm-1m
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Established spread
30-50cm
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Plant spacing
5 tubers per m2
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Leaf colour
Green
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Habit
Upright
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Life cycle
Perennial
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Hardiness
Half hardy
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Years to establish
1st year
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Sunlight
Full sun
Partial shade -
Position
Sheltered
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Suitable for
Large containers
Borders
Gravel gardens
Coastal gardens
Cottage gardens
Low maintenance gardens
Cut flower Gardens
Wildlife gardens -
Soil acidity
Any
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Soil moisture
Free draining
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Soil type
Loam
Sandy
Multipurpose compost
Loam-based compost -
Growing skill
Easy to grow
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Scented
No
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Pollinator-friendly
Yes
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Mouse resistant
No
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Rabbit resistant
No
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Deer resistant
No
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Toxicity
No report
Plant calendar
Jan | Feb | Mar | Apr | May | June | July | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|
- Planting
- Flowering
Useful information
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Dahlia 'Hartenaas' is half hardy, which means that it should be kept frost free over winter and during spring.
For best results, start your dahlia tubers in temporary pots in a
greenhouse in March or April to grow on to transplant outside later in the season—this will give them a head start.Alternatively, you can plant the Dahlia 'Hartenaas' tubers directly outside in May.
Plant with the stump of last year's stem facing upwards. The tuber should be fully submerged but with the stump just below the soil surface.
Plant one tuber per 8-10" pot if growing on during spring. When
planting outside, space the tubers around 30-50cm apart from each other. Compact varieties don’t need so much space.Water-in thoroughly after planting and continue to water regularly once in full growth, but only when the soil appears to be nearly dry.
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Orders placed before 1 March 2025
You can expect your order in Feb/March 2025Orders placed 1 March - 15 April 2025
You can expect your order in April 2025Orders placed 16 April - 15 May 2025
You can expect your order within 10 business days
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