Dahlia Decorative
Blue Wish
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90-110cm -
5-10cm -
Full Sun
90-110cm 
5-10cm 
Full SunDahlia ‘Blue Wish’ is a decorative-type dahlia that enchants with its soft, shifting hues. The blooms open with white petals tipped in lavender or purple, gradually deepening into a more uniform lilac as they mature—like a flower that paints itself over time.
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🌸 Bloom Size: 10–15 cm, fully double and elegantly rounded
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🌿 Height: Grows to about 90–120 cm, with a bushy, upright habit
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☀️ Sunlight: Thrives in full sun, though it can handle light shade
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🪴 Best Use: Stunning in borders, cutting gardens, or as a pastel focal point
It blooms from early summer through mid-autumn, offering a long season of colour. Its subtle palette pairs beautifully with pinks, whites, and soft greens, making it a dream for romantic garden schemes or delicate floral arrangement
- The best time to plant Dahlias here in NZ is September or October, but can be planted anytime from mid August through to late December.
- Dahlias love sun ,so choose a nice sunny spot in your garden. Ideally a spot that gets at least 4 hours of full sun a day.
- Dahlias will grow in almost any soil, but prefer well drained loamy soil conditions.
- Prepare the ground a few weeks before planting by digging over the soil thoroughly and adding a little well rotted compost and an application of general fertiliser.
- Before planting the tubers, apply stakes (for larger varieties) staking after planting damages roots and tubers.
- Plant your Dahlia tubers about 5-10cm deep and about 50cm apart with the eye facing upwards. Water well and keep moist being careful not to over-water.
For a full overview of how to plant Dahlias visit our Gardeners Guide.
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